arduino tft display animation code made in china

2023-01-03 12:32:11

In this article, you will learn how to use TFT LCDs by Arduino boards. From basic commands to professional designs and technics are all explained here.

In electronic’s projects, creating an interface between user and system is very important. This interface could be created by displaying useful data, a menu, and ease of access. A beautiful design is also very important.

There are several components to achieve this. LEDs, 7-segments, Character and Graphic displays, and full-color TFT LCDs. The right component for your projects depends on the amount of data to be displayed, type of user interaction, and processor capacity.

TFT LCD is a variant of a liquid-crystal display (LCD) that uses thin-film-transistor (TFT) technology to improve image qualities such as addressability and contrast. A TFT LCD is an active matrix LCD, in contrast to passive matrix LCDs or simple, direct-driven LCDs with a few segments.

In Arduino-based projects, the processor frequency is low. So it is not possible to display complex, high definition images and high-speed motions. Therefore, full-color TFT LCDs can only be used to display simple data and commands.

In this article, we have used libraries and advanced technics to display data, charts, menu, etc. with a professional design. This can move your project presentation to a higher level.

Size of displays affects your project parameters. Bigger Display is not always better. if you want to display high-resolution images and signs, you should choose a big size display with higher resolution. But it decreases the speed of your processing, needs more space and also needs more current to run.

After choosing the right display, It’s time to choose the right controller. If you want to display characters, tests, numbers and static images and the speed of display is not important, the Atmega328 Arduino boards (such as Arduino UNO) are a proper choice. If the size of your code is big, The UNO board may not be enough. You can use Arduino Mega2560 instead. And if you want to show high resolution images and motions with high speed, you should use the ARM core Arduino boards such as Arduino DUE.

In electronics/computer hardware a display driver is usually a semiconductor integrated circuit (but may alternatively comprise a state machine made of discrete logic and other components) which provides an interface function between a microprocessor, microcontroller, ASIC or general-purpose peripheral interface and a particular type of display device, e.g. LCD, LED, OLED, ePaper, CRT, Vacuum fluorescent or Nixie.

The display driver will typically accept commands and data using an industry-standard general-purpose serial or parallel interface, such as TTL, CMOS, RS232, SPI, I2C, etc. and generate signals with suitable voltage, current, timing and demultiplexing to make the display show the desired text or image.

The LCDs manufacturers use different drivers in their products. Some of them are more popular and some of them are very unknown. To run your display easily, you should use Arduino LCDs libraries and add them to your code. Otherwise running the display may be very difficult. There are many free libraries you can find on the internet but the important point about the libraries is their compatibility with the LCD’s driver. The driver of your LCD must be known by your library. In this article, we use the Adafruit GFX library and MCUFRIEND KBV library and example codes. You can download them from the following links.

You must add the library and then upload the code. If it is the first time you run an Arduino board, don’t worry. Just follow these steps:Go to www.arduino.cc/en/Main/Software and download the software of your OS. Install the IDE software as instructed.

By these two functions, You can find out the resolution of the display. Just add them to the code and put the outputs in a uint16_t variable. Then read it from the Serial port by Serial.println(); . First add Serial.begin(9600); in setup().

First you should convert your image to hex code. Download the software from the following link. if you don’t want to change the settings of the software, you must invert the color of the image and make the image horizontally mirrored and rotate it 90 degrees counterclockwise. Now add it to the software and convert it. Open the exported file and copy the hex code to Arduino IDE. x and y are locations of the image. sx and sy are sizes of image. you can change the color of the image in the last input.

Upload your image and download the converted file that the UTFT libraries can process. Now copy the hex code to Arduino IDE. x and y are locations of the image. sx and sy are size of the image.

In this template, We just used a string and 8 filled circles that change their colors in order. To draw circles around a static point ,You can use sin(); and cos(); functions. you should define the PI number . To change colors, you can use color565(); function and replace your RGB code.

In this template, We converted a .jpg image to .c file and added to the code, wrote a string and used the fade code to display. Then we used scroll code to move the screen left. Download the .h file and add it to the folder of the Arduino sketch.

In this template, We used sin(); and cos(); functions to draw Arcs with our desired thickness and displayed number by text printing function. Then we converted an image to hex code and added them to the code and displayed the image by bitmap function. Then we used draw lines function to change the style of the image. Download the .h file and add it to the folder of the Arduino sketch.

In this template, We created a function which accepts numbers as input and displays them as a pie chart. We just use draw arc and filled circle functions.

In this template, We added a converted image to code and then used two black and white arcs to create the pointer of volumes. Download the .h file and add it to the folder of the Arduino sketch.

In this template, We added a converted image and use the arc and print function to create this gauge. Download the .h file and add it to folder of the Arduino sketch.

while (a < b) { Serial.println(a); j = 80 * (sin(PI * a / 2000)); i = 80 * (cos(PI * a / 2000)); j2 = 50 * (sin(PI * a / 2000)); i2 = 50 * (cos(PI * a / 2000)); tft.drawLine(i2 + 235, j2 + 169, i + 235, j + 169, tft.color565(0, 255, 255)); tft.fillRect(200, 153, 75, 33, 0x0000); tft.setTextSize(3); tft.setTextColor(0xffff); if ((a/20)>99)

while (b < a) { j = 80 * (sin(PI * a / 2000)); i = 80 * (cos(PI * a / 2000)); j2 = 50 * (sin(PI * a / 2000)); i2 = 50 * (cos(PI * a / 2000)); tft.drawLine(i2 + 235, j2 + 169, i + 235, j + 169, tft.color565(0, 0, 0)); tft.fillRect(200, 153, 75, 33, 0x0000); tft.setTextSize(3); tft.setTextColor(0xffff); if ((a/20)>99)

In this template, We display simple images one after each other very fast by bitmap function. So you can make your animation by this trick. Download the .h file and add it to folder of the Arduino sketch.

In this template, We just display some images by RGBbitmap and bitmap functions. Just make a code for touchscreen and use this template. Download the .h file and add it to folder of the Arduino sketch.

The speed of playing all the GIF files are edited and we made them faster or slower for better understanding. The speed of motions depends on the speed of your processor or type of code or size and thickness of elements in the code.

arduino tft display animation code made in china

I bought a cheap LCD screen for a project I"m working on to get my feet wet with programming LCD touch screens before buying a "full-size" screen. But i can not find any libraries or code to get it to display anything. Ive downloaded the new ILI9341 library along with 4-5 other ones and can not get it to display or do anything.

Im using an UNO with THIS display. i would prefer to use my mega but this one says it is only for the UNO. I tried the links on the eBay page for getting it to work but they didn"t seem to help.

here are three codes I"m trying to run that upload but don"t display. Im extremely new to this and i had a fellow programmer give me a hand but can not figure it out.

arduino tft display animation code made in china

No, I do not understand why the module does not link all the SPI bus signals on the pcb. It would save 6 external pins. On the other hand, libraries like UTFT and URTouch have no concept of hardware SPI or bus.

arduino tft display animation code made in china

We have used Liquid Crystal Displays in the DroneBot Workshop many times before, but the one we are working with today has a bit of a twist – it’s a circle! Perfect for creating electronic gauges and special effects.

LCD, or Liquid Crystal Displays, are great choices for many applications. They aren’t that power-hungry, they are available in monochrome or full-color models, and they are available in all shapes and sizes.

Today we will see how to use this display with both an Arduino and an ESP32. We will also use a pair of them to make some rather spooky animated eyeballs!

There are also some additional connections to the display. One of them, DC, sets the display into either Data or Command mode. Another, BL, is a control for the display’s backlight.

The above illustration shows the connections to the display. The Waveshare display can be used with either 3.3 or 5-volt logic, the power supply voltage should match the logic level (although you CAN use a 5-volt supply with 3.3-volt logic).

Another difference is simply with the labeling on the display. There are two pins, one labeled SDA and the other labeled SCL. At a glance, you would assume that this is an I2C device, but it isn’t, it’s SPI just like the Waveshare device.

This display can be used for the experiments we will be doing with the ESP32, as that is a 3.3-volt logic microcontroller. You would need to use a voltage level converter if you wanted to use one of these with an Arduino Uno.

The Arduino Uno is arguably the most common microcontroller on the planet, certainly for experiments it is. However, it is also quite old and compared to more modern devices its 16-MHz clock is pretty slow.

The Waveshare device comes with a cable for use with the display. Unfortunately, it only has female ends, which would be excellent for a Raspberry Pi (which is also supported) but not too handy for an Arduino Uno. I used short breadboard jumper wires to convert the ends into male ones suitable for the Arduino.

Once you have everything hooked up, you can start coding for the display. There are a few ways to do this, one of them is to grab the sample code thatWaveshare provides on their Wiki.

The Waveshare Wiki does provide some information about the display and a bit of sample code for a few common controllers. It’s a reasonable support page, unfortunately, it is the only support that Waveshare provides(I would have liked to see more examples and a tutorial, but I guess I’m spoiled by Adafruit and Sparkfun LOL).

Open the Arduino folder. Inside you’ll find quite a few folders, one for each display size that Waveshare supports. As I’m using the 1.28-inch model, I selected theLCD_1inch28folder.

Once you do that, you can open your Arduino IDE and then navigate to that folder. Inside the folder, there is a sketch file namedLCD_1inch28.inowhich you will want to open.

When you open the sketch, you’ll be greeted by an error message in your Arduino IDE. The error is that two of the files included in the sketch contain unrecognized characters. The IDE offers the suggestion of fixing these with the “Fix Encoder & Reload” function (in the Tools menu), but that won’t work.

The code is pretty basic, I’m not repeating all of it here, as it consists of several files. But we can gather quite a bit of knowledge from the main file, as shown here.

You can see from the code that after loading some libraries we initialize the display, set its backlight level (you can use PWM on the BL pin to set the level), and paint a new image. We then proceed to draw lines and strings onto the display.

After uploading the code, you will see the display show a fake “clock”. It’s a static display, but it does illustrate how you can use this with the Waveshare code.

This library is an extension of the Adafruit GFX library, which itself is one of the most popular display libraries around. Because of this, there isextensive documentation for this libraryavailable from Adafruit. This makes the library an excellent choice for those who want to write their own applications.

As with the Waveshare sample, this file just prints shapes and text to the display. It is quite an easy sketch to understand, especially with the Adafruit documentation.

The sketch finishes by printing some bizarre text on the display. The text is an excerpt from The Hitchhiker’s Guide to the Galaxy by Douglas Adams, and it’s a sample of Vogon poetry, which is considered to be the third-worst in the Galaxy!

Here is the hookup for the ESP32 and the GC9A01 display. As with most ESP32 hookup diagrams, it is important to use the correct GPIO numbers instead of physical pins. The diagram shows the WROVER, so if you are using a different module you’ll need to consult its documentation to ensure that you hook it up properly.

The TFT_eSPI library is ideal for this, and several other, displays. You can install it through your Arduino IDE Library Manager, just search for “TFT_eSPI”.

There is a lot of demo code included with the library. Some of it is intended for other display sizes, but there are a few that you can use with your circular display.

To test out the display, you can use theColour_Test sketch, found inside the Test and Diagnostic menu item inside the library samples. While this sketch was not made for this display, it is a good way to confirm that you have everything hooked up and configured properly.

A great demo code sample is theAnimated_dialsketch, which is found inside theSpritesmenu item. This demonstration code will produce a “dial” indicator on the display, along with some simulated “data” (really just a random number generator).

In order to run this sketch, you’ll need to install another library. Install theTjpeg_DecoderLibrary from Library Manager. Once you do, the sketch will compile, and you can upload it to your ESP32.

One of my favorite sketches is the Animated Eyes sketch, which displays a pair of very convincing eyeballs that move. Although it will work on a single display, it is more effective if you use two.

The first thing we need to do is to hook up a second display. To do this, you connect every wire in parallel with the first display, except for the CS (chip select) line.

The Animated Eyes sketch can be found within the sample files for the TFT_eSPI library, under the “generic” folder. Assuming that you have wired up the second GC9A01 display, you’ll want to use theAnimated_Eyes_2sketch.

The GC9A01 LCD module is a 1.28-inch round display that is useful for instrumentation and other similar projects. Today we will learn how to use this display with an Arduino Uno and an ESP32.

arduino tft display animation code made in china

Whatever you are currently celebrating, Christmas, Hanukkah, Jul, Samhain, Festivus, or any other end-of-the-civil-year festivities, I wish you a good time! This December 25th edition of the Nextion Sunday Blog won"t be loaded with complex mathematical theory or hyper-efficient but difficult to understand code snippets. It"s about news and information. Please read below...After two theory-loaded blog posts about handling data array-like in strings (Strings, arrays, and the less known sp(lit)str(ing) function and Strings & arrays - continued) which you are highly recommended to read before continuing here, if you haven"t already, it"s big time to see how things work in practice! We"ll use a string variable as a lookup lookup table containing data of one single wave period and add this repeatedly to a waveform component until it"s full.A few weeks ago, I wrote this article about using a text variable as an array, either an array of strings or an array of numbers, using the covx conversion function in addition for the latter, to extract single elements with the help of the spstr function. It"s a convenient and almost a "one fits all" solution for most use cases and many of the demo projects or the sample code attached to the Nextion Sunday Blog articles made use of it, sometimes even without mentioning it explicitly since it"s almost self-explaining. Then, I got a message from a reader, writing: "... Why then didn"t you use it for the combined sine / cosine lookup table in the flicker free turbo gauge project?"105 editions of the Nextion Sunday blog in a little over two years - time to look back and forth at the same time. Was all the stuff I wrote about interesting for my readers? Is it possible at all to satisfy everybody - hobbyists, makers, and professionals - at the same time? Are people (re-)using the many many HMI demo projects and code snippets? Is anybody interested in the explanation of all the underlying basics like the algorithms for calculating square roots and trigonometric functions with Nextion"s purely integer based language? Are optimized code snippets which allow to save a few milliseconds here and there helpful to other developers?Looking through the different Nextion user groups on social networks, the Nextion user forum and a few not so official but Nextion related forums can be surprising. Sometimes, Nextion newbies ask questions or have issues although the required function is well (in a condensed manner for the experienced developer, I admit) documented on the Nextion Instruction Set page, accessible through the menu of this website. On top of that, there is for sure one of my more than 100 Sunday blog articles which deals not only with that function, but goes often even beyond the usual usage of it. Apparently, I should sometimes move away from always trying to push the limits and listen to the "back to the roots!" calls by my potential readers...Do you remember the (almost) full screen sized flicker free and ultra rapid gauge we designed in June? And this without using the built-in Gauge component? If not, it"s time to read this article first, to understand today"s improvements. The June 2022 version does its job perfectly, the needle movement is quick and smooth, and other components can be added close to the outer circle without flickering since there is no background which needs constantly to be redrawn. But there was a minor and only esthetic weak point: The needle was a 1px thin line, sometimes difficult to see. Thus, already a short time after publishing, some readers contacted me and asked if there were a way to make the needle thicker, at least 2 pixels.

arduino tft display animation code made in china

Minimal bit-bang send serial 115200 or 38400 baud for 1 MHz or 230400 baud for 8/16 MHz ATtiny clock.Perfect for debugging purposes.Code size is only 76 bytes@38400 baud or 196 bytes@115200 baud (including first call)

This library enables you to use Hardware-based PWM channels on Arduino AVR ATtiny-based boards (ATtiny3217, etc.), using megaTinyCore, to create and output PWM to pins.

This library enables you to use ISR-based PWM channels on Arduino AVR ATtiny-based boards (ATtiny3217, etc.), using megaTinyCore, to create and output PWM any GPIO pin.

Small low-level classes and functions for Arduino: incrementMod(), decToBcd(). strcmp_PP(), PrintStr, PrintStrN, printPad{N}To(), printIntAsFloat(), TimingStats, formUrlEncode(), FCString, KString, hashDjb2(), binarySearch(), linearSearch(), isSorted(), reverse(), and so on.

Cyclic Redundancy Check (CRC) algorithms (crc8, crc16ccitt, crc32) programmatically converted from C99 code generated by pycrc (https://pycrc.org) to Arduino C++ using namespaces and PROGMEM flash memory.

Various sorting algorithms for Arduino, including Bubble Sort, Insertion Sort, Selection Sort, Shell Sort (3 versions), Comb Sort (4 versions), Quick Sort (3 versions).

Date, time, timezone classes for Arduino supporting the full IANA TZ Database to convert epoch seconds to date and time components in different time zones.

Clock classes for Arduino that provides an auto-incrementing count of seconds since a known epoch which can be synchronized from external sources such as an NTP server, a DS3231 RTC chip, or an STM32 RTC chip.

Useful Arduino utilities which are too small as separate libraries, but complex enough to be shared among multiple projects, and often have external dependencies to other libraries.

Fast and compact software I2C implementations (SimpleWireInterface, SimpleWireFastInterface) on Arduino platforms. Also provides adapter classes to allow the use of third party I2C libraries using the same API.

This library allows to read a value from an analog input like an potentiometer, or from a digital input like an encoder. Moreover, allows to write it on digital output, exactly on PWM pin.

Enables Bluetooth® Low Energy connectivity on the Arduino MKR WiFi 1010, Arduino UNO WiFi Rev.2, Arduino Nano 33 IoT, Arduino Nano 33 BLE and Nicla Sense ME.

Fully Asynchronous UDP Library for RASPBERRY_PI_PICO_W using CYW43439 WiFi with arduino-pico core. The library is easy to use and includes support for Unicast, Broadcast and Multicast environments.

The last hope for the desperate AVR programmer. A small (344 bytes) Arduino library to have real program traces and to find the place where your program hangs.

An Arduino library that takes input in degrees and output a string or integer for the 4, 8, 16, or 32 compass headings (like North, South, East, and West).

Directly interface Arduino, esp8266, and esp32 to DSC PowerSeries and Classic security systems for integration with home automation, remote control apps, notifications on alarm events, and emulating DSC panels to connect DSC keypads.

This library enables you to use Hardware-based PWM channels on Arduino AVRDx-based boards (AVR128Dx, AVR64Dx, AVR32Dx, etc.), using DxCore, to create and output PWM.

This library enables you to use ISR-based PWM channels on Arduino AVRDx-based boards (AVR128Dx, AVR64Dx, AVR32Dx, etc.), using DxCore, to create and output PWM any GPIO pin.

Small and easy to use Arduino library for using push buttons at INT0/pin2 and / or any PinChangeInterrupt pin.Functions for long and double press detection are included.Just connect buttons between ground and any pin of your Arduino - that"s itNo call of begin() or polling function like update() required. No blocking debouncing delay.

Arduino library for controlling standard LEDs in an easy way. EasyLed provides simple logical methods like led.on(), led.toggle(), led.flash(), led.isOff() and more.

OpenTherm Library to control Central Heating (CH), HVAC (Heating, Ventilation, Air Conditioning) or Solar systems by creating a thermostat using Arduino IDE and ESP32 / ESP8266 hardware.

An ESP8266/ESP32-AT library for Arduino providing an easy-to-use way to control ESP8266-AT/ESP32-AT WiFi shields using AT-commands. For AVR, Teensy, SAM DUE, SAMD21, SAMD51, STM32, nRF52, SIPEED_MAIX_DUINO and RP2040-based (Nano_RP2040_Connect, RASPBERRY_PI_PICO, etc.) boards using ESP8266/ESP32 AT-command shields.

ezTime - pronounced "Easy Time" - is a very easy to use Arduino time and date library that provides NTP network time lookups, extensive timezone support, formatted time and date strings, user events, millisecond precision and more.

A library for implementing fixed-point in-place Fast Fourier Transform on Arduino. It sacrifices precision and instead it is way faster than floating-point implementations.

The GCodeParser library is a lightweight G-Code parser for the Arduino using only a single character buffer to first collect a line of code (also called a "block") from a serial or file input and then parse that line into a code block and comments.

Arduino library for the Flysky/Turnigy RC iBUS protocol - servo (receive) and sensors/telemetry (send) using hardware UART (AVR, ESP32 and STM32 architectures)

An Arduino library to control the Iowa Scaled Engineering I2C-IRSENSE ( https://www.iascaled.com/store/I2C-IRSENSE ) reflective infrared proximity sensor.

Treat PCF8574, MCP23017 and Shift registers like pins, matrix keypad, touch screen handler, button press and rotary encoder management (switches) on any supported IO (including DfRobot & Joysticks) with event handling, interchangable AVR/I2C(AT24) EEPROMs.

This library uses polymorphism and defines common interfaces for reading encoders and controlling motors allowing for easy open or closed loop motor control.

Convinient way to map a push-button to a keyboard key. This library utilize the ability of 32u4-based Arduino-compatible boards to emulate USB-keyboard.

This library allows you to easily create light animations from an Arduino board or an ATtiny microcontroller (traffic lights, chaser, shopkeeper sign, etc.)

LiquidCrystal fork for displays based on HD44780. Uses the IOAbstraction library to work with i2c, PCF8574, MCP23017, Shift registers, Arduino pins and ports interchangably.

An all in one, easy to use, powerful, self contained button library so you can focus on your other code! Includes Debouncing, Avoids Delays, multiclicks and allows you to decide what happens at the beginning and end of Short, Long, Hold and Shifts so you can create a intuative and responsive experience.

This library enables you to use ISR-based PWM channels on RP2040-based boards, such as Nano_RP2040_Connect, RASPBERRY_PI_PICO, with Arduino-mbed (mbed_nano or mbed_rp2040) core to create and output PWM any GPIO pin.

Arduino library for MCP4728 quad channel, 12-bit voltage output Digital-to-Analog Convertor with non-volatile memory and I2C compatible Serial Interface

This library enables you to use ISR-based PWM channels on an Arduino megaAVR board, such as UNO WiFi Rev2, AVR_Nano_Every, etc., to create and output PWM any GPIO pin.

Replace Arduino methods with mocked versions and let you develop code without the hardware. Run parallel hardware and system development for greater efficiency.

A library package for ARDUINO acting as ModBus slave communicating through UART-to-RS485 converter. Originally written by Geabong github user. Improved by Łukasz Ślusarczyk.

This library enables you to use ISR-based PWM channels on an nRF52-based board using Arduino-mbed mbed_nano core such as Nano-33-BLE to create and output PWM any GPIO pin.

This library enables you to use ISR-based PWM channels on an nRF52-based board using Adafruit_nRF52_Arduino core such as Itsy-Bitsy nRF52840 to create and output PWM any GPIO pin.

An Arduino library for the Nano 33 BLE Sense that leverages Mbed OS to automatically place sensor measurements in a ring buffer that can be integrated into programs in a simple manner.

The library for OpenBCI Ganglion board. Please use the DefaultGanglion.ino file in the examples to use the code that ships with every Ganglion board. Look through the skimmed down versions of the main firmware in the other examples.

A library written in C++ to encode/decode PDU data for GSM modems. Both GSM 7-bit and UCS-2 16 bit alphabets are supported which mean, in practice, you can send/receive SMS in any language (including emojis).

his library enables you to use Hardware-based PWM channels on RP2040-based boards, such as Nano_RP2040_Connect, RASPBERRY_PI_PICO, with either Arduino-mbed (mbed_nano or mbed_rp2040) or arduino-pico core to create and output PWM to any GPIO pin.

This library enables you to use SPI SD cards with RP2040-based boards such as Nano_RP2040_Connect, RASPBERRY_PI_PICO using either RP2040 Arduino-mbed or arduino-pico core.

This library enables you to use ISR-based PWM channels on RP2040-based boards, such as ADAFRUIT_FEATHER_RP2040, RASPBERRY_PI_PICO, etc., with arduino-pico core to create and output PWM any GPIO pin.

The most powerful and popular available library for using 7/14/16 segment display, supporting daisy chaining so you can control mass amounts from your Arduino!

Enables smooth servo movement. Linear as well as other (Cubic, Circular, Bounce, etc.) ease movements for servos are provided. The Arduino Servo library or PCA9685 servo expanders are supported.

Enables reading and writing on SD card using SD card slot connected to the SDIO/SDMMC-hardware of the STM32 MCU. For slots connected to SPI-hardware use the standard Arduino SD library.

Menu library for Arduino with IoT capabilities that supports many input and display devices with a designer UI, code generator, CLI, and strong remote control capability.

Adds tcUnicode UTF-8 support to Adafruit_GFX, U8G2, tcMenu, and TFT_eSPI graphics libraries with a graphical font creation utility available. Works with existing libraries

This library enables you to use Hardware-based PWM channels on Teensy boards, such as Teensy 2.x, Teensy LC, Teensy 3.x, Teensy 4.x, Teensy MicroMod, etc., to create and output PWM to pins. Using the same functions as other FastPWM libraries to enable you to port PWM code easily between platforms.

A library for creating Tickers which can call repeating functions. Replaces delay() with non-blocking functions. Recommanded for ESP and Arduino boards with mbed behind.

This library enables you to use Interrupt from Hardware Timers on an Arduino, Adafruit or Sparkfun AVR board, such as Nano, UNO, Mega, Leonardo, YUN, Teensy, Feather_32u4, Feather_328P, Pro Micro, etc.

This library enables you to use Interrupt from Hardware Timers on supported Arduino boards such as AVR, Mega-AVR, ESP8266, ESP32, SAMD, SAM DUE, nRF52, STM32F/L/H/G/WB/MP1, Teensy, Nano-33-BLE, RP2040-based boards, etc.

A simple library to display numbers, text and animation on 4 and 6 digit 7-segment TM1637 based display modules. Offers non-blocking animations and scrolling!

Really tiny library to basic RTC functionality on Arduino. DS1307, DS3231 and DS3232 RTCs are supported. See https://github.com/Naguissa/uEEPROMLib for EEPROM support. Temperature, Alarms, SQWG, Power lost and RAM support.

Monochrome LCD, OLED and eInk Library. Display controller: SSD1305, SSD1306, SSD1309, SSD1312, SSD1316, SSD1318, SSD1320, SSD1322, SSD1325, SSD1327, SSD1329, SSD1606, SSD1607, SH1106, SH1107, SH1108, SH1122, T6963, RA8835, LC7981, PCD8544, PCF8812, HX1230, UC1601, UC1604, UC1608, UC1610, UC1611, UC1617, UC1638, UC1701, ST7511, ST7528, ST7565, ST7567, ST7571, ST7586, ST7588, ST75160, ST75256, ST75320, NT7534, ST7920, IST3020, IST3088, IST7920, LD7032, KS0108, KS0713, HD44102, T7932, SED1520, SBN1661, IL3820, MAX7219, GP1287, GP1247, GU800. Interfaces: I2C, SPI, Parallel.

True color TFT and OLED library, Up to 18 Bit color depth. Supported display controller: ST7735, ILI9163, ILI9325, ILI9341, ILI9486,LD50T6160, PCF8833, SEPS225, SSD1331, SSD1351, HX8352C.

A rotary encoder library that allows the callback of up to 9 different functions representing the same number of different encoder events. These different functions can be associated with events like press rotate and long press among many others.

RFC6455-based WebSockets Server and Client for Arduino boards, such as nRF52, Portenta_H7, SAMD21, SAMD51, STM32F/L/H/G/WB/MP1, Teensy, SAM DUE, RP2040-based boards, besides ESP8266/ESP32 (ESP32, ESP32_S2, ESP32_S3 and ESP32_C3) and WT32_ETH01. Ethernet shields W5100, W5200, W5500, ENC28J60, Teensy 4.1 NativeEthernet/QNEthernet or Portenta_H7 WiFi/Ethernet. Supporting websocket only mode for Socket.IO. Ethernet_Generic library is used as default for W5x00. Now supporting RP2040W

Enables network connection (local and Internet) and WiFiStorage for SAM DUE, SAMD21, SAMD51, Teensy, AVR (328P, 32u4, 16u4, etc.), Mega, STM32F/L/H/G/WB/MP1, nRF52, NINA_B302_ublox, NINA_B112_ublox, RP2040-based boards, etc. in addition to Arduino MKR WiFi 1010, Arduino MKR VIDOR 4000, Arduino UNO WiFi Rev.2, Nano 33 IoT, Nano RP2040 Connect. Now with fix of severe limitation to permit sending much larger data than total 4K and using new WiFi101_Generic library

Universal Timer with 1 millisecond resolution, based on system uptime (i.e. Arduino: millis() function or STM32: HAL_GetTick() function), supporting OOP principles.

arduino tft display animation code made in china

In this Arduino touch screen tutorial we will learn how to use TFT LCD Touch Screen with Arduino. You can watch the following video or read the written tutorial below.

As an example I am using a 3.2” TFT Touch Screen in a combination with a TFT LCD Arduino Mega Shield. We need a shield because the TFT Touch screen works at 3.3V and the Arduino Mega outputs are 5 V. For the first example I have the HC-SR04 ultrasonic sensor, then for the second example an RGB LED with three resistors and a push button for the game example. Also I had to make a custom made pin header like this, by soldering pin headers and bend on of them so I could insert them in between the Arduino Board and the TFT Shield.

Here’s the circuit schematic. We will use the GND pin, the digital pins from 8 to 13, as well as the pin number 14. As the 5V pins are already used by the TFT Screen I will use the pin number 13 as VCC, by setting it right away high in the setup section of code.

As the code is a bit longer and for better understanding I will post the source code of the program in sections with description for each section. And at the end of this article I will post the complete source code.

I will use the UTFT and URTouch libraries made by Henning Karlsen. Here I would like to say thanks to him for the incredible work he has done. The libraries enable really easy use of the TFT Screens, and they work with many different TFT screens sizes, shields and controllers. You can download these libraries from his website, RinkyDinkElectronics.com and also find a lot of demo examples and detailed documentation of how to use them.

After we include the libraries we need to create UTFT and URTouch objects. The parameters of these objects depends on the model of the TFT Screen and Shield and these details can be also found in the documentation of the libraries.

So now I will explain how we can make the home screen of the program. With the setBackColor() function we need to set the background color of the text, black one in our case. Then we need to set the color to white, set the big font and using the print() function, we will print the string “Arduino TFT Tutorial” at the center of the screen and 10 pixels down the Y – Axis of the screen. Next we will set the color to red and draw the red line below the text. After that we need to set the color back to white, and print the two other strings, “by HowToMechatronics.com” using the small font and “Select Example” using the big font.

Ok next is the RGB LED Control example. If we press the second button, the drawLedControl() custom function will be called only once for drawing the graphic of that example and the setLedColor() custom function will be repeatedly called. In this function we use the touch screen to set the values of the 3 sliders from 0 to 255. With the if statements we confine the area of each slider and get the X value of the slider. So the values of the X coordinate of each slider are from 38 to 310 pixels and we need to map these values into values from 0 to 255 which will be used as a PWM signal for lighting up the LED. If you need more details how the RGB LED works you can check my particular tutorialfor that. The rest of the code in this custom function is for drawing the sliders. Back in the loop section we only have the back button which also turns off the LED when pressed.

In order the code to work and compile you will have to include an addition “.c” file in the same directory with the Arduino sketch. This file is for the third game example and it’s a bitmap of the bird. For more details how this part of the code work you can check my particular tutorial. Here you can download that file:

arduino tft display animation code made in china

ILI9341 based TFT Touchscreen Display Shields are very popular low cost Display Shields for Arduino. Visuino has had support for them for quite a while, but I never had chance to write a Tutorial on how to use them. Recently however few people asked questions about using displays with Visuino, so I decided to make a tutorial.

In this Tutorial, I will show you how easy it is, to connect the Shield to Arduino, and program it with Visuino to animate a Bitmap to move around on the Display.

In the "Shields" dialog expand the "Displays" category, and select the "TFT Color Touch Screen Display ILI9341 Shield", then click on the "+" button to add it (Picture 2)

Next we need to add Graphics elements to render text and bitmap. First we will add graphics element to draw the shadow of the text:In the Object Inspector, click on the "..." button next to the value of the "Elements" property of the "TFT Display" Element (Picture 1)

In the File Open Dialog, select the bitmap to draw, and click on the "Open" button (Picture 4). If the file is too big it may not be able to fit in the Arduino memory. If you get out of memory error during the compilation, you may need to select a smaller bitmap

Connect the "Out" output pin of the SineIntegerGenerator1component to the "X" input pin of the "Shields.TFT Sisplay.Elements.Draw Bitmap1" element of the Arduino component (Picture 4)

Connect the "Out" output pin of the SineIntegerGenerator2component to the "Y" input pin of the "Shields.TFT Display.Elements.Draw Bitmap1" element of the Arduino component (Picture 5)

Connect the "Pin[ 1 ]" output pin of the "Clock" input pin of the "Shields.TFT Display.Elements.Draw Bitmap1" element of the Arduino component (Picture 6)

Pictures 2, 3, 4 and 5 and the Video show the connected and powered up project. You will see the Bitmap moving around the ILI9341 based TFT Touchscreen Display Shield as seen on the Video.

arduino tft display animation code made in china

Very good tutorial, but I think there is an error on the picture 2 “Arduino & WS2812 – Only running on external power supply”. I guess when you connect Arduino to external power supply in this case external +5V (DC) should be connected to Vin pin of the Arduino, but on your chart it is connected to +5V (that i theory should be used to supply detectors connected to Arduino).

And even though the displayed setup works just fine (I’ve been using this setup for almost 2 years now on a daily basis), I should probably look into changing the picture to be really 100% correct.

Fantastic site! I just got a Arduino Uno starter kit from Amazon and waiting for a 1m strip of WS2812 lights to arrive as I have a project I am working on for a holistic friend of mine. I’m 50 and new to all of this, but from my research, using the Arduino and the light strip is my best way to go here, so I am learning as I go now.

I am a complete novice but have made some limited progress with some modifications as you will see from the attached code. I would be extremely grateful if you could point the way with the next stage as a variation on your Strobe code. I have so far modified it to produce the following: –

Hello i have a question, first off thank you for all the code and great job, second I try to put the code into Arduino and compile it, it keeps saying ‘meteorrain’ was not declared in this scope any idea of how i could fix that?

fix: Copy and Paste the sketch from the website into Notepad, Copy again from there and paste it in the Arduino IDE – this typically filters invisible characters causing issues.

i want to make led strip (ws2812b) to show a static color lets say only red. So that when i start arduino my led strip would only display red color and continue to display it.

Running Arduino 1.6.3 with FastLED 3.0, Arduino Nano 3, 328 atmega, WS2812B leds. LEDs, when setup with RGB ordering, output green for red, and red for green. Blue is fine.Switching to GRB ordering, all the LEDs in my strip turn green, with hints of other colors (ie a flashing “red” LED will be a slightly pulsing fully lit green LED.The coloring of the strip does not occur in the RGB ordering – but obviously, the colors are backwards.Any thoughts?

I visited this site: //www.tweaking4all.com/hardware/arduino/adruino-led-strip-effects/. I liked what I saw and tried out all the sketch on this site.

I want to study how you put together all the sketch and run them together, and use off function to be beeter to write code. I want to make myself a great Christmas stuff! :)

I suppose theoretically, you could put all effects into one sketch. It might be however, that you run out of memory (depending on the Arduino model you’re using).

These LED routines are all great. I’m trying to combine a few of them into one program and have a variable chose which one to display. I’ve only tested a few so far, but I found that the Bouncing colored balls gets stuck and does not return to the loop. I added a line after showstrip; to break if the variable is not set to the value for that routine. I thought I’d mention this in case someone else is attempting to do the same thing.

I added the Cylon and New Kitt to my Program and noticed every time these routine starts over, most of the leds briefly flash white. I cant see anything in the code that could be causing this. Any ideas?

I used a transistor, with the arduino connected to the base (with a 100k pulldown resistor) and the supply voltage on the collector, then connected the strip to the emitter and all the glitches went away.

I got it to do exactly what I wanted. I was already using the bouncing color ball routine, so I used the array to call up the different colors as it switches from left to right, outside to center, etc. I’m just started learning this arduino stuff. I’ve been programming pic micros in assembly language for the past 25 years. Using these addressable LEDs is a great way to learn a new language. FYI, I’m using a Teensy 3.2 as my processor.

Hey, for me, a lot of this stuff is new as well. I used to play with the BASICStamp (far from as advanced as using assembly) for a while, but the Arduino made things a lot easier. Also good to know that Teensy pulls this off!

Utterly fantastic. Thank you so much for taking the time to create, write up, and share all of these fantastic light displays with us! You have a true gift and a generous heart.

Since your code has saved me at least a day’s worth of work, I would happily donate to your site for your time and effort, but I’d rather all of the funds go directly to you (instead of 90% through Flattr). Are there alternatives (like PayPal) or something similar? I’m US-based, if that makes a difference.

Absolutely Amazing! You truly are the keymaster of NeoPixels. I absolutely love WS2812’s and have been playing with them for about 6 months now. This is by far the best use of them I have found. I was hoping you could point me to an example that uses your examples with a switch. I have been trying for a few days now to get your code with “all effects” to operate through a switch case instead of time delays. I have had no luck getting a switch to control even two shows. I must be missing something very simple like checking my switch at the wrong times. Hopefully there is something out there for me? Otherwise you have made a wonderful contribution to NeoPixels.

First off, thank you Hans for writing back so quickly. I really do appreciate it and your your time. So yes to, there are lots of strip out there with UV LED’s but to my understanding they are all analog. I can’t seem to find a single color digital strip anywhere let alone one that is UV. This is basically for a computer build that I’m putting together. The other question I came up with is permanent placement of the arduino in side the computer. Is it possible/ok to, substitute the external 5v power supply you in your diagram with a molex connection to the 5v 30a DC rail on a ATX computer psu?

I think the problem with Analog strips is that you cannot address the LEDs individually, so making that work with an Arduino might not be possible. I did find this Arduino Forum Topic, which might be of interest.

As for powering the Arduino+LEDs with your computers PSU; that should work (5V 30A is definitely enough). Just make sure that you get a PSU with some extra watts available to power your PC (mainboard, disks, videocard, etc) and the LEDs. Placing the Arduino itself in the case would not be a problem though.

So I went and got an Arduino UNO Starter kit, ordered a whole mess of led strips (waiting for them to be delivered). Downloaded the Arduino Software and the Fast LED Library. No matter what i do whether its open a file from the fast led library or just copy and past it from here. All I get are error messages. I have to say beyond the simple downloading and uploading of files or copying and pasting the code. I truly have no clue as to what I’m doing or looking at, or even what I’m doing wrong. Whatever help you can give would be greatly appreciated.

I can totally understand the frustration … it’s too bad that the Arduino IDE doesn’t handle GitHub ZIP’s all that well (see also here). You could try that older FastLED library and the Arduino IDE could automatically update it to the latest version.

So simply put, where can I get the the code, for the examples I gave from beginning to end, simply copy and paste into a sketch, save it, use it, and works?

The examples can be found in the code here as well. There is pretty much no overhead in my code – I just made it so it can be used with both libraries.

As for combining effects, take a look in the Tweaking4All Arduino Forum (goor place to ask questions too). It’s not super extensive, but this topic for example discusses how to put multiple effects together. For most effects, it’s a matter of copy and paste, for a few others it takes a little bit more work … but it can be done!

In the framework code (depending which library you choose, in your case FastLED), you’ll need to replace the following code with the code for the effect:

p.s. it’s better to discuss this in our Arduino Forum, otherwise the comments in this topic become too much – I took the liberty to start this topic for you question.

As for being able to do this your self; practice … and believe me, I’m not a great coder either … it just takes a lot of playing with code to get a feel for it.

I want to combine different effects in 1 sketch, but Bouncing Balls effect (that I rly like) is endless. What shall I change in code to limit number of Bouncing Balls cycles?

ps. If you’d like to discuss the code, please consider starting a forum topic in the Arduino Forum. Just to avoid that the comments here become very long.

I’ve been trying to utilize your hint about random numbers in order to run different functions every time I switch on the arduino, but I keep getting error messages. I try to tie if and if else statements to different functions and numbers but I’ve been unsuccessful. Can you please let me know a better way to think about calling random functions?

Since then I’ve added remote control using a Sony IR codes, a music interface, and made a high power LED pixel using a WS2811 IC and power Mosfets. I was thinking of making an arduino shield that would contain these features as well as a circuit board to make the high power pixel. I put a video on youtube that shows the music interface in action and the high power pixel thats made up of 3 watt red, green and blue LEDs.

You should open the lightita.ino on the Arduino IDE and the effects.ino should be opened automatically on another tab inside the IDE. The effects.ino file contains all the effects, I separated on two different files to keep things organized.

Although a very cool and fantastically laid out article, I find a lot of the code needlessly complex. To me, the big no no’s in an animation that may have button or other controls include:

My other big issue is counting pixels up and down and I’ll use the cylon as an example. Why have all that code to count up and down, when you could just use some basic high school math and use sine waves instead? You could use it to go back and forth, you could use phase shifting and have waves, you could clip it and so on. In addition, with FastLED’s beatsin8() function, you don’t even need delays at all.

I am into light painting photography, using tri-color LEDs for years, with a bank of logic switches to control color. Just read a magazine article about Arduino’s and have gone crazy looking for new light patterns and codes. I have a two part question:

I’d probably go for using several pins and maybe a rotary switch. You’ll need a wire from GND with a resistor to a pin or several pins (see basic diagram here – you’ll find some basic code there as well on how to read a switch/button state), then a wire for each pin to a switch which shorts to +5V. I’d probably consider using a rotary switch so we do not switch multiple switches at the same time.

You can always try to find more elegant solutions once you get more experienced with Arduino coding – at least that’s how it works for me. This way I get a better feel for what I’m doing as well …

Now, since it’s placed in the “void loop() { … }” this function will be called over and over again, with the same parameters. So just a rinse and repeat of the same effect. To add randomness to this we could modify the function call and use the Arduino “random()” function.

Note: the Arduino doesn’t really do random numbers very well, since it always starts with the same “seed”. We can however change the seed by a more random number whenever the sketch starts by adding the “randomSeed()” function to the “void setup() { … }”.

Thanks! But I need some more hand holding, I’m afraid. Are you suggesting editing the Strobe sketch? I added the six suggested lines to the top of the sketch and replaced the void loop section as you wrote. But I don’t know what to do with the other two sections of code, void setup and void loop.

FYI, I pulled the code from the Forum page and pasted into the Arduino editing program, made a the changes for NUM_LEDS and PIN and tried to compile it – got a couple of error messages (240 and 300?). Did a re-type of code and still the same error messages and then I stated to look at the “error lines” and found several referenced lines as blank lines, more online searches and found copy/paste can add hidden code. So if the error referenced line 15, I did a control L and enter 15, moved the cursor to the stated of line 16 and hit back space until the cursor was at the last character in line 14, then “enter”, “enter” and that error line disappeared. After doing this several times, the Forum code worked beautifully, so I started to tweak the code for my “Light Painting” sticks.

As mentioned below; copy the code, paste it into Notepad, copy all from Notepad, paste it into your Arduino IDE – this should strip all excessive characters.

Hello, i am a beginner with WS2812B LED strips with an Arduino nano and I would like to use the KITT effect. I try to use it but I get an error. Are you able to help me please, thank you. The error message is:Arduino: 1.8.1 (Windows 10), Board: “Arduino Nano, ATmega328”

Now, what I usually do (I assume you’re working under Windows) is copy code, then paste it into Notepad, select everything in Notepad and copy it again. Now excessive characters are gone … now paste it into your code editor and try again …

Hi, i need some help. I’m clueless when it comes to programming so I’m kinda lost. I have an issue, whatever is meant to fade out and then in to change, is blinking and changing instead. Is my strip faulty, or am i doing something wrong. Using arduino nano clone and ws2812b 5050 led tape (60 led),

I am a beginner in programming (Arduino IDE) and I realized an e-textile project (ATtiny85 + 1x LED RGB WS2812B) with one of your script (NeoPixel) that works well.

I wanted to thank you for all these examples, it made me want to have fun with those LEDs. I actually had a DAC project ongoing and I’m using these ideas (and the way they’re coded since I’m in uncharted territory here).

I actually have a problem but since I modified the code to fit my plans I’m going post my code on the forum so anyone can help me understand what’s wrong :D

1st phase: Start-up lighting to actually signify to user it started. I used fade in/out code, I only modified the brightness increasing with sine wave instead of linear.

3rd phase: When NAS is found, the RaspberryPi updates its output and my arduino goes back to almost the same fade in/out as in phase 1 except it doesn’t go back to LEDs off but stays to 50% (I don’t want too much light and I like how it looks to go high and a little back down

Seems nice but it only half works. phase 1 and 2 works perfectly fine but when I connect my wire to simulate the input from the RaspberryPi it goes crazy. It’s like the switch/case is broken and I have all code executed at the same time and it looks bad

I just uploaded, to the Forum, my modified Button Cycle .ino, where every time I press a normally open switch, the sketch jumps to the next loop (case) segment and does a different light pattern sequence. The problem is if I am doing a photography workshop and the people want loop #5 repeated, I have to power down and restart at loop #1, pressing the button time and again until I get to loop #5 (each loop creates a 35 second light show). I have tried to modify that sketch to take a keypad input of 5 to jump to that case (Keypad_Test), but I have two (2) lines that keep giving me error messages. I have re-typed those lines and many other lines above and below the error lines, plus lines in the define section and have cleared many other error messages (I’m using Windows 10) and from previous posts see where I should have possibly saved the code to Notepad and then copied it into IDE. If that is the answer, then so be it, but if I am doing something stupid, then tell me – thanks.

I solved the issue, with the 2 lines of code that were giving me error messages, it seems that “Fat Fingers” had creeped in and I had an extra character in the define line. I now have a working 3 X 4 matrix keypad., where I can press any one of the 12 keys and that case/loop runs. A sample video has been posted on YouTube https://youtu.be/t14OyY58YNY and I’ll post the full code on the Forum page https://www.tweaking4all.com/forums/topic/lightning-effect/

Yes Hans i see int goes for integer but i disnt know we Define k in here. I was thinking we Want k to do something in ur code. So its a Define code, not a Do code. Umm okay. Thanks for ur very fast reply that was so nice of u. I will dig on that in my mind. I m a newbee. Thanks again. I guess i need another article that teachea Coding from zero and the logics of it.

I got my Arduino unit mid-November and beat my head against the wall too. My best advise is think of coding as a good book – Introduction, Table of Content and the individual chapter or chapters.

What I wanted to do was create a “Light Painting Stick” for photography, where I could press one of the keys, on a 3 X 4 keypad and have that sub-loop/sketch run. With a few comments from Hans, it all came together for me and if you read the above Feb. 5 post, there is a link to the finished code – enjoy this site.

i want to make a rainbow code of the color wipe. i mean that the color stable to show out like a rainbow in 16 LED lights. i dont want to make a rainbow run. can u suggest for me? thank you very much.

If I understand correctly, you want LED ‘0’ (first LED) to be red and the last LED to be violet? If so consider defining each of the 16 LED’s like this (you need to enter color code as desired). This is copied from another program, so verbiage may have to be changed to suit. Have to run for an appointment, but will check later today.

If we indeed mean a static rainbow, then that code would work, and I’m sure there would be a smart calculation for it as well but using array like that is easier to understand.

Otherwise, i want to adjust the code. when i load the program to my arduino, my other function I2C display can not show out out and detect sensor must delay to read the data, can you give me some suggest?

So B5FF8A becomes: B5, FF, and 8A. to let the Arduino know this is not a normal number, but a hexadecimal number, add “0x” (zero-X) in front of each of the numbers (this would save you from having to think too much about hexadecimal number and convert them).

I’d be happy to take a look and see where I can help. But with long codes being posted here, other users would have to scrolls for days to find something.

Your next question is to combine the code with controlling a display and reading sensors. This makes things a little bit more complicated and we’d need to see the code for those peripherals.

since I do not see the entire sketch you’re using (and pretty please do not post it here – the forum is the place to post large pieces of code), I can only guess that you didn’t copy the framework.

I now have the 121 keypad code working, as well as the multiple position and pushbutton advance switch code. Thanks again to you Hans, for your direction and tips.

cycling through effects has been requested a few times (which makes me want to write an article about it, but simple do not seem to get to actually finding time to do it). A few users have been working on the same question in the Arduino Forum – that would be a great starting point.

Ben, thanks to a few comments from Hans, I have created several different light painting sticks, using the Arduino Uno Board and either a 12 button keypad, a 5 position switch or a normally open push button (9 sub-sketches). Sample video’s can be seem on my YouTube page “Gerald Bonsack”. I have found that as the 9V battery gets weak, the Arduino wants to do it own thing and not follow my written code. I have posted one or two of the .ino files, on the Forum page and will post others, if requested. For the 5 position switch, I have the 10k resistor between the ground and the common connection between the 5V supply and the switch – output from the switch goes to INPUT PINS, on the board. Since I started playing with the Arduino only a couple of months ago, my code my not be pretty, but it works.

Thanks for the reply. I will say upfront, that I am a Arduino newbie. However, using the code you posted gave me the white LEDs again. I compared that code to a working Neo Pixel sketch, and noticed some differences that pertain to the Trinket. I modified the code with those bits, and now when I run it, all the LEDs go black. Here is the modified code:

(I hope I got all the differences, and this would be the “base” code of course – just didn’t want to post very lengthy code, that would be better in the forum, if we want to continue the topic)

hi im new to coding on Arduino but iv been trying to do the KITT effect (Cylon) for ages and just found this site yesterday iv managed to get it working but not liking the look of the KITT effect when i slow it down, iv set the speed to about “70” as i want it to look like the real KITT car but i can see the LED’s are not fading into the red as its going along.. it looks as if its just turning the led’s on from 0% brightness to 100% also the faded sides of the eye that I’m guessing jumps from 0% to 50% brightness.. so my question is can i make the effect better by fading the LED’s in as they go along.. for example each LED will not jump straight to 100 instead 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% brightness.. any help il be much appreciated.

I just started learning how to use the arduino, my idea was to have custom led configs on my pc case for fun, and I found out learning arduino with 2812b leds is a much better way to do this than lets say buying a retail product like NZXT Hue+.

Thank you thank you thank you!!!!This did exactly what I was looking for, I’m just starting with Arduino, neopixel etc, so I’m still trying to figure out coding things so this is a HUGE help.

this should work for all types of LED strands. Now if the strand is not really a WS2811, it might become tricky to control the LED colors. Quite a lot of sellers advertise wrong or misleading information. Did you try some test code from the “Controlling LEDs with Arduino” article?

As for multiple effects in one sketch, consult our Arduino Forum, there are a few topics on this, for example this one, that should help get you started.

hi guys is anyone can help me i jst wanna add two pir sensor with these codes top and bottom im bit confuse with wiring and coding is anyone knows how to do it thx

It is best to start a forum topic in our Arduino forum for this. I monitor this daily, and it would keep off-topic and long source codes away from these comment sections.

I’m a complete novice with Arduino and Neopixels, and by novice I mean I’ve never coded anything before! I’ve picked up some bits and pieces but I’ve found that most tutorials jump through stages without actually explaining the basics, pretty much just copy and paste code which isn’t great for learni

arduino tft display animation code made in china

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