arduino tft lcd mega shield sd card example factory

Spice up your Arduino project with a beautiful large touchscreen display shield with built in microSD card connection. This TFT display is big (3.5" diagonal) bright (6 white-LED backlight) and colorful (18-bit 262,000 different shades)! 320x480 pixels with individual pixel control. As a bonus, this display has a optional resistive touch panel with controller XPT2046 attached by default and a optional capacitive touch panel with controller FT6236 attached by default, so you can detect finger presses anywhere on the screen and doesn"t require pressing down on the screen with a stylus and has nice glossy glass cover.

The pin32 (SDO) of 3.5 display module is also used by touch panel or SD card SPI interface, so we must cut off this pin to avoid conflict with the touch panel or SD card.

The shield is fully assembled, tested and ready to go. No wiring, no soldering! Simply plug it in and load up our library - you"ll have it running in under 10 minutes! Works best with any classic Arduino (Due/Mega 2560).

This display shield has a controller built into it with RAM buffering, so that almost no work is done by the microcontroller. You can connect more sensors, buttons and LEDs.

Of course, we wouldn"t just leave you with a datasheet and a "good luck!" - we"ve written a full open source graphics library at the bottom of this page that can draw pixels, lines, rectangles, circles and text. We also have a touch screen library that detects x,y and z (pressure) and example code to demonstrate all of it. The code is written for Arduino but can be easily ported to your favorite microcontroller!

If you"ve had a lot of Arduino DUEs go through your hands (or if you are just unlucky), chances are you’ve come across at least one that does not start-up properly.The symptom is simple: you power up the Arduino but it doesn’t appear to “boot”. Your code simply doesn"t start running.You might have noticed that resetting the board (by pressing the reset button) causes the board to start-up normally.The fix is simple,here is the solution.

I puzzled some hours with exactly the same hardware setup and made a quick & dirty, but successfully test script, combining LCD, Touch and SD Card Features.

I found the TFT screen and Uno on Banggood.com about a month ago and over the weekend I was messing with the pair and found the tftbmp draw code in the demo.. I extended it with the ability to read any bmp file on the SD card.. so all you do is put your bitmaps on the SD and plug it in.. Having to add/edit/recompile/reload the Uno everytime is BS... Here is my code:

The Shield TFT is usually supplied with an SD card module to store data or images. Touchscreen LCDs to display images and create graphical user interfaces. In this tutorial, we use the Kuman TFT 2.8″ shield (very similar to the 3.5″ shield) and we will see how to interface with the microSD card.

The shield is placed directly on an Arduino UNO or Mega board. The shield uses almost all the pins of the Arduino UNO. Make sure you don’t use the same ones for other modules. The SD card module of the TFT shield uses the SPI bus and selector pin 10.

The main interest of the MicroSD module on the TFT shield is to be able to store images in order to display them on the screen. If you don’t have a bitmap image at hand, you can download the one we use in this example.

We will create a button for each file and with the help of the previous function we will display the images contained in the SD card when we press the corresponding button.

Once the code is uploaded, a menu will appear with a button for each file contained on the SD card. If you press a button, the corresponding bitmap image will be displayed on the screen. If you press the screen again you will return to the main menu.

SainSmart 2.8" TFT LCD Display is a LCD touch screen module. It has 40pins interface and SD card and Flash reader design. It is a powerful and mutilfunctional module for your project.The Screen include a controller ILI9325, it"s a support 8/16bit data interface , easy to drive by many MCU like arduino families，STM32 ,AVR and 8051. It is designed with a touch controller in it . The touch IC is XPT2046 , and touch interface is included in the 40 pins breakout. It is the version of product only with touch screen and touch controller.

Voltage type: 5v or 3v voltage input voltage，input is selectable. Because TFT can only work under 3.3 V voltage, so when the input voltage VIN is 5V, need through the 3.3 V voltage regulator IC step down to 3.3V , when the input voltage of 3.3 V, you need to use the zero resistance make J2 short , is equivalent to not through the voltage regulator IC for module and power supply directly.

Every now and then, you get an idea for an Arduino project that needs a way to store a lot of log data and other information, like a GPS logger or a temperature logger.

The solution is to use something that can be found in any digital camera or MP3 player: Flash Cards! They are often called SD cards or microSD cards. Their ability to fit Gigabytes of data into a space smaller than a coin makes them an essential part of our lives.

A standard microSD card has an operating voltage of 3.3 V. As a result, we cannot connect it directly to circuits that use 5V logic; in fact, any voltages above 3.6V may permanently damage the microSD card. That is why the module includes an onboard ultra-low dropout voltage regulator capable of regulating voltage to 3.3V.

The module also includes a 74LVC125A logic level shifter chip, allowing for safe and easy communication with your favorite 3.3V or 5V microcontroller without damaging the SD card.

There’s a microSD card socket on the front! Any microSD memory card will work perfectly. The proper direction to insert a microSD card is usually printed on the module.

SDIO mode is much faster and is used in mobile phones, digital cameras, and other devices. However, it is more complicated and requires the signing of non-disclosure agreements. Because of this, hobbyists like us are unlikely to come across SDIO mode interface code.

If you have a new SD card, chances are it’s already pre-formatted with a FAT file system; however, you may encounter issues with how the factory formats the card. Or, if you have an old card, it needs to be formatted. In any case, it’s a good idea to format the card before using it.

It is recommended that you use the official SD card formatter utility developed by the SD association. It can solve a lot of problems caused by bad formatting! Download and run the formatter on your computer; simply select the appropriate drive and click Format.

Now we are left with the pins that are used for SPI communication. Because microSD cards require a lot of data transfer, they perform best when connected to the microcontroller’s hardware SPI pins.

Communicating with an SD card is a lot of work, but luckily for us, the Arduino IDE already includes a very useful library called SD that makes reading and writing SD cards easier.

Let’s start with a simple CardInfo example sketch. This sketch doesn’t write any data to the card. Instead, it tells you if the card is recognized and shows you some information about it. This can be very useful when determining whether or not an SD card is supported. It is therefore recommended that you run this sketch once before trying out a new card.

Now, insert the SD card into the module and upload the sketch. When you open the Serial Monitor, you may see different results depending on the scenario.

If everything is fine, you should see some useful information. For example, in our case, the card type is SDHC (SD High Capacity), the volume type is FAT32, and the size of the card is 4 GB.

Although the card responded, all the data is inaccurate. As you can see, there is no Manufacturer ID or OEM ID, and the Product ID is ‘N/A.’ It appears the card returned SD errors.

If there is a wiring error or the card is permanently damaged, you will see something similar to this. You can see that it couldn’t even initialize the SD card.

Next, we declare the Arduino pin to which the SD card module’s CS (Chip Select) pin is connected. Except for the CS pin, we do not need to declare any other SPI pins because we are using a hardware SPI interface and these pins are already declared in the SPI library.

In the setup() section, we initialize the serial communication and call the SD.begin() function. If it manages to recognize the card, it prints “initialization done.” on the serial monitor. If it doesn’t, it prints “initialization failed!” and the program terminates.

We then close the file by using the close() function. This function closes the file and makes sure that any data written to it is saved to the SD card.

You can open files in a directory. To open a file in the directory, for example, use SD.open("/myfiles/example.txt"). Remember that the path to the file is relative.

The SD card library does not support long filenames because it uses the 8.3 filename format. So keep file names short. For instance, “datalog.txt” is fine, but “My Sensor log file.text” is not!

There are a few useful functions you can use with File Objects as well.seek() function can be used to move the reading/writing cursor to a new location. seek(0), for example, will move the cursor to the beginning of the file.

Welcome to my collection of Arduino projects. As a maker, techie and mechatronics engineer I’ve been using Arduino for more then 8 years. Arduino is an incredibly versatile microcontroller with limitless possibilities for developing electronics applications and prototypes.

We can use Arduino for simple tasks such as controlling LEDs and DC motors, to controlling real CNC machines and robots. That’s right, in the following list I will share my Arduino experience with you. You will find Arduino projects for beginners and more advanced projects for Arduino enthusiast.

Even if you are just getting started with Arduino, you don’t have to worry about that. Each of the following DIY Arduino projects is covered with detailed step by step tutorial on how to do it yourself and includes circuit schematics, source codes and videos.

Using the comments section below, you can also suggest your ideas, as well as discuss anything related to these Arduino projects. I will continuously update this article with all new stuff that I make. Last update: February 2022.

As an Arduino enthusiast, I found making robots with Arduino to be most fun for me. There is so much to learn from them as a maker and an engineer. So, here are my Arduino projects related to robotics so you can learn too.

When it comes to automated manufacturing, robot arms play big role with so many applications. They are often used for welding, assembling, packing, painting, pick and place tasks and much more. This Arduino project is actually a robotic arm made out of 3D printed parts, servo motors joints and controlled using an Arduino Nano. What’s even cooler we can control the robot arm wirelessly via a smartphone and a custom build Android application.

The following project is one of the coolest Arduino project in this list. It’s an Arduino robot car which instead of normal wheels, it employs omnidirectional wheels or mecanum wheels which enable to robot to move in any direction.

Here’s an upgraded version of the previous mecanum wheels robot project. On top of the platform I added the DIY Arduino Robot Arm project mentioned above and now they can work together.

Of course, as for any of my Arduino projects, the Arduino code, the custom build Android application, as well as the 3D model files can be found and downloaded from the particular project article.

This Arduino based SCARA robot is a step-up big compared to the previous projects in every aspect. It has a better and more robust design with precisely controlled stepper motors and custom build GUI for controlling it.

As a controller it has an Arduino UNO board, combined with a CNC shield and four A4988 stepper drivers. It has 4 DOF, driven by four NEMA 17 stepper motors.

For controlling the robot we are using an Arduino Mega board in combination with a RAMPs board. This a popular combination used for 3D printing and it can be used for laser engraving machines as well. As for a firmware, we are using the Marlin 3D Printer firmware and the Repetier control software.

The rover features a rocker-bogie suspension which allows the rover to run smoothly on uneven terrain, just like the real rover. It has six independently controlled DC motors for driving and four servos for steering, and it’s controlled using an Arduino MEGA board. There’s also an FPV camera located in the cameras unit of the rover which can by used for controlling the rover remotely. The remote control is done with the help of a cheap commercial RC transmitter and receiver.

Making biologically inspired robots is very popular among engineering students. This Arduino project is all about it, we will build a hexapod robot which features six legs, a tail or abdomen, a head, antennas, mandibles and even functional eyes. All of this makes the robot look like an ant.

Each leg have three joints, and for each joint we need a servo motor. That means that we need total of 18 servos for this project, and additionally 3 servos for the head movements and 1 servo for the tail. The brain of the robot is an Arduino Mega. We need MEGA because it’s the only board that can control more than 12 servos using the Servo library.

I also designed a custom PCB which acts as an Arduino Mega Shield so we can easily attach all servo connects. We can control the ant robot via Bluetooth and a smartphone, or radio communication. The ant also has built-in ultrasonic sensor in the head. With that it can detect objects in front, and it can even strike if the object is present if front of it.

The following projects show how capable Arduino is. A CNC or Computer Numerical Control is an automated control of machines, like mills, lathes, plasma cutters, 3D printers and etc. So, using the Arduino as a controller we are actually able to build any of these CNC machines.

The CNC machine is composed of just two linear rails which are secured to a base frame made of 8mm MDF board. For controlling it we are using an Arduino UNO board in combination with a CNC shield and two DRV8825 stepper drivers. As a tool it has an laser module attached so this machine is actually a CNC laser engraver.

The idea for this Arduino project was similar to the previous one, to build a CNC machine using minimum parts possible. Here I used 3D several printed parts, and just two MGN15H linear rails for the main construction of the machine.

Building your own CNC machine might seem like a big challenge for many of you, but the following Arduino CNC Machine project shows that building a CNC machine is actually not that hard.

Controlling stepper motors using Arduino is without a doubt one of most satisfying thing for an Arduino enthusiast. There so many machines based on this motors, like CNC machines, 3D printers, various automation machines etc. This Arduino project is all about that. It describes how you can build such a machine. It’s a machine for bending wire, where with the help of stepper motors we can precisely bend wire and make various shapes and forms out of it.

The machine features three stepper motors. With the first stepper we feed the wire to the bending mechanism. Here we have another stepper motor used for the bending the wire at the right angle. There’s also another stepper, for controlling the Z-axis. This stepper enables the machine to create three dimensional shapes. With this project we can also see how useful 3D printers are for Arduino projects of this type or for prototyping.

Many Arduino projects that I make require wireless control and that’s why I build this Arduino based wireless radio controller. With this RC transmitter I can wirelessly control pretty much with a range up to 700m in open space. It features 14 channels, 6 of which are analog and 8 digital inputs.

The brain of this Arduino project is an Arduino Pro Mini board which is the smallest Arduino board. The radio communication is based on the NRF24L01 module, it has 2 joysticks, 2 potentiometers and 4 momentary push buttons. Also an accelerometer and gyro module which can be used for controlling things with just moving around or tilting the controller. I mounted all electronic components on a custom design PCB and made a cover out of transparent acrylic.

This is a follow up project of the above one. Just like DIY RC Transmitter, this DIY Arduino RC Receiver can be used for many application. We can easily pair the two projects together and control anything wirelessly. Among others, I made an example of controlling a commercial RC car model using these DIY transmitter and receiver.

The custom PCB that I made uses the same NRF24L01 module for the radio communication. The controller is an Arduino Pro Mini and it features input/ output 9 channels.

The following Arduino project is a great example of utilizing the DIY RC transmitter from above. It’s a 3D printed hovercraft which I entirely designed on my own, and of course, the 3D printing files are available for downloading. The hovercraft uses two brushless motors, one for creating an air cushion for the lift, and the other for generating thrust or moving forward.

For the wireless control we are using the NRF24L01 module, which accepts the data coming from the RC transmitter. Then using the Arduino and two ESCs (Electronic Speed Controler) we control the BLDC motors speed. On the back side of the hovercraft there is also a servo for controlling the rudders, or for controlling the steering. I must say that driving this DIY hovercraft is so fun.

Anyone who had a chance of playing around with some RC airplanes knows how cool and fun it is. It’s even cooler and more satisfying if you build the RC airplane on your own. The following project steps the satisfaction up even further, because here I will show you how to build your own RC airplane which is 100% DIY build. Also, we have a 100% DIY radio control system based on the Arduino.

The airplane is entirely made out of Styrofoam and what’s cooler, the shapes are made with the help of my DIY Arduino CNC Foam Cutting Machine, a project already mention above. The radio communication is based on the NRF24L01 transceiver modules. For that purpose, I used my DIY Arduino RC Transmitter and DIY Arduino RC Receiver.

You can choose one of the three different methods of wireless control explained in this project, or that’s the HC-05 Blueooth module, the NRF24L01 transceiver module and theHC-12 long range wireless module. Additionally you can learn how to make your own Android app for controlling the Arduino robot car.

This Arduino project idea is rather practical because it features indoor and outdoor temperature and humidity measurement. It is based on the DHT11/ DHT22 sensor, the NRF24L01 transceiver module for the wireless communication and theDS3231 RTC. For the display we can either use 16×2 character LCD or a 3.2 inches TFT touch screen.

The outdoor unit can be powered with batteries and the indoor unit with an AC adapter. The outdoor unit measures the temperature and the humidity and sends the values to the main indoor unit. Here these values are printed on the LCD along with the data and time values from the DS3231 RTC module.

The slider has three NEMA 17 stepper motors controlled via the A4988 stepper drivers and the Arduino Nano board. Using a joystick we can control the pan and tilt movements and using a potentiometer we can control the sliding movement. With this DIY camera slider we can use the Set button to set two different IN and OUT points. Then the camera can automatically move from one to the other point.

If you are interested in building something more complex with Arduino then this project is the one for you. Although complex, you could easily recreate it as there is a detailed step by step explanation on how everything works, including circuit schematics and source codes.

The following Arduino project is a simple gimbal or a self-stabilizing platform. It can be used for keeping objects or the top platform level. The project is rather simple with just several electronic components.

The combination of DC motors and Arduino is always fun, and so is this project. Here we will build our own robot car from scratch. The car will be powered with Li-ion batteries and two 12V DC motors, and controlled using the L298N driver and an analog Joystick.

For this project you just need two components along with an Arduino board, and that’s an ultrasonic sensor and small servo motor. The range of the radar can be adjusted to up to 4 meters with 180 degrees rotation.

The project also includes and accelerometer which is used for the digital spirit level function or for measuring angle. The results are displayed on 16×2 LCD and all components are attached on a custom design PCB.

In this project we will learn how to use a color detecting sensor along with the Arduino. We are going to be sorting out colored skittles but you can use the same sensor and method for sorting out anything else.

In this project we will learn how to use the Arduino to make an RFID controlled door lock. The system consists of an MFRC522 RFID reader and RFID tags/ cards that are based on the MIFARE protocol.

To make this project more interesting I also added an example where you can update the text on the LED matrixes through your smartphone using a custom-made Android app.

For this project we need a 3.2 inches TFT Touch screen, an TFT Mega shield adapter and an Arduino Mega board. The code is a bit longer but everything is explained in details.

The heart of the table is an Arduino which controls the 45  WS2812B Addressable LEDs. The objects on top of the table are detected using infrared proximity sensors. What’s even cooler it has built-in Bluetooth module which enables interaction with a smartphone for selecting the LEDs colors.

In this Arduino project we are building an Air Quality Monitor which can measure several important air quality parameters such as PM2.5, CO2, VOC, Ozone, as well as temperature and humidity. I designed a custom PCB on which we can easily attach the sensors we need and show the results on a 2.8 inches touch display. The device can also keep track of the sensors values from the last 24 hours.

The following section of this article contains Arduino projects ideas based on my detailed tutorials on various sensors and modules, as well as your suggestions from the comments section below.

We can use NEMA 17 or 23 stepper motors in combination with these drivers which provide high speed reduction ratios. As for controller we could use an Arduino Uno or Arduino MEGA board.

Controlling your home power outlets via a smartphone is the first step in home automation. You can easily make your own Arduino controlled power outlets utilizing the knowledge you can get from my Arduino tutorials.

For this project you just need two components along with the Arduino board. An HC-05 Bluetooth module and a5V Relay module for which I already have detailed tutorials. For powering the Arduino and the relay you can use 220/ 110V AC to 5V DC converter.

Using your smartphone you can connect and control your power outlet via Bluetooth. You can either use some already made apps for controlling Arduino from the Play Store or create your own custom made app. In this way we can also control the power outlets through voice control commands.

Home automation is one of the most popular Arduino projects nowadays. The goal of this project is to remotely control anything in your house like lights, appliances, temperature, security devices and so on, with a single device or your smartphone.

In order to make such a project we need decent amount of knowledge in Arduino. The following home automation concept that I suggest is based on my detailed Arduino tutorials for various sensors and modules.

Of course, there are endless possibilities and combinations for building a home automation system using the Arduino board. You can always change and add more devices. You can also make a Bluetooth communication so you can control all of this using your smartphone etc.

The idea for this project is to remotely control an Arduino project using hand gestures. Let’s say we want to control the Arduino Robot Car that we mentioned above. So instead of the joystick we will use an MEMS module for the control.

page1_btn.initButton(&tft, tft.width() / 2. , tft.height() / 2. - (1.*btnHeight + margin), 2 * btnWidth, btnHeight, WHITE, GREEN, BLACK, "SENSOR", 2);

page3_btn.initButton(&tft, tft.width() / 2., tft.height() / 2. + (1.*btnHeight + margin), 2 * btnWidth, btnHeight, WHITE, GREEN, BLACK, "PARAMETER", 2);

tft.drawRoundRect(tft.width() / 2. - 1.5 * btnWidth, tft.height() / 2. - (1.5 * btnHeight + 2 * margin), 2 * btnWidth + btnWidth, 3 * btnHeight + 4 * margin, 10, GREEN);

plus_btn.initButton(&tft, tft.width() / 2. - btnWidth / 2. , 60 + 3 * 4 + 6 * 8 + (btnWidth - 30), btnWidth - 20, btnWidth - 30, WHITE, GREEN, BLACK, "+", 5);

minus_btn.initButton(&tft, tft.width() / 2. + btnWidth / 2. + margin, 60 + 3 * 4 + 6 * 8 + (btnWidth - 30), btnWidth - 20, btnWidth - 30, WHITE, GREEN, BLACK, "-", 5);

if (bColor != 255) tft.fillRect(x - nbChar * 3 * tsize - marg, y - nbChar * 1 * tsize - marg, nbChar * 6 * tsize + 2 * marg, nbChar * 2 * tsize + 2 * marg, bColor);