micropython tft display free sample

optional, default=not used, pin to drive the backlight input on Display module, do not use if the display module does not have some kind of backlight driver, the display"s backlight usualy needs more current than gpio can provide.

type: optional, set the image type, constants tft.JPG or tft.BMP can be used. If not set, file extension and/or file content will be used to determine the image type.

WARNING: Displaying images from SDCard connected in SPI mode will be very slow. In such a case, it is recommended to copy the image files to the internal file system.

#tft.init(tft.ST7735R, speed=10000000, spihost=tft.HSPI, mosi=13, miso=12, clk=14, cs=15, dc=27, rst_pin=26, hastouch=False, bgr=False, width=128, height=160)

So you have a nifty display like a bright TFT LCD, Charlieplex LED or NeoPixel matrix powered by MicroPython, but what if you want to draw shapes and graphics on it? Most MicroPython display modules only give you basic pixel drawing commands so it"s difficult to draw graphics yourself pixel by pixel. Luckily there"s a handy new MicroPython graphics module you can use to draw basic shapes and graphics on any pixel-based display! This module shows some of the power of MicroPython--a single module can work with any pixel display because of MicroPython"s dynamic language features. In this guide you"ll learn how to use a MicroPython graphics module to draw basic line, rectangle, circle, and triangle shapes on pixel-based displays like the ILI9341 TFT FeatherWing.

For this guide there"s no special hardware you need to draw graphics on a display. However you do need to have a pixel-based display of some sort (LED, TFT, NeoPixel--anything!) connected to your MicroPython board. Check out the following guides for details on how to use a few pixel displays with MicroPython:

First make sure you are running the latest version of MicroPython for your board. If you"re using the ESP8266 MicroPython port you must be running version

If your board supports USB mass storage, like the SAMD21 MicroPython port, then simply drag the .mpy and other files to the board"s file system (eject the drive and reset the board to make sure it is picked up by MicroPython).

The following section will show how to draw shapes on a ILI9341 TFT display like the TFT FeatherWing. You"ll see how the module can be adpated to draw on any pixel-based display by plugging in a new pixel drawing function too.

Next you"ll need to initialize your display so that you can draw pixels on it. Consult the MicroPython display guides for details on initializing displays.

To use the graphics and shape rendering module you"ll need to import its module and create an instance of the GFX class inside it. For example, to create a graphics renderer for the TFT FeatherWing above you would run:

A pixel drawing function to call when the GFX class needs to write a pixel. For this example the TFT display classpixelfunction is specified. It"s important to note that to use the graphics class youmusthave a function it can call to draw pixels! This function can live anywhere, like as a global function or on a class instance. The function needs to take at least a pixel x position and pixel y position parameter (in that order), and any number of other positional and keyword parameters after them (like color, intensity, etc.).

There are two optional parameters you can specify as keyword arguments too. They aren"t shown in this guide but see how the ILI9341 display example code uses them:

hline- Optionally set hline to a fast horizontal line drawing function for your display. This will improve the speed of drawing certain shapes. The function should take as parameters an x position and y position of the line start, then width of the line in pixels. Any number of optional color or other parameters can follow. If you don"t provide a hline function a slow default implementation that draws pixel by pixel will be used.

vline - Optionally set vline to a fast vertical line drawing function for your display. This will improve the speed of drawing certain shapes, especially filled shapes. The function should take as parameters an x position, y position of the line start, then height of the line in pixels. Any number of optional color or other parameters can follow. If you don"t provide a vline function a slow default implementation that draws pixel by pixel will be used.

Now the fun begins! After creating the GFX class you can call functions to draw shapes on the display. For example, draw a simple line across the entire display with the line function:

That"s all there is to basic shape drawing with the Adafruit MicroPython GFX module! With these basic shape primitives you can start to create interesting graphic projects, like a pong or breakout game using filled rectangles and circles. You can add text with the Adafruit MicroPython bitmap font module too!

Remember any pixel-based display can be used with this library, for example, an OLED display or NeoPixel, Charlieplex LED, or simple LED backpack matrix are great targets to use with the library. Just plug in each module"s pixel function and you"ll be drawing shapes in no time!

2. I tested https://github.com/cheungbx/st7735-esp8266-micropython. However, I don"t know how to handle both MOSI and MISO, so there is no output on my LCD

1. first of all, the 1.4" 128*128 LCD can display logo image on it own"s gadget. In other word, the LCD screen is ok. And at the same time I measure that the VCC is 3.3V, CS is 3.3V

One more question, is there ST7735R module for micropython which supplies more functions like adafruit-circuitpython-st7735r does? I am using ESP32 for which I can"t find the proper circuitpython firmware

MicroPython is a lean and efficient implementation of the Python 3 programming language that includes a small subset of the Python standard library and is optimised to run on microcontrollers and in constrained environments.

Other places you can look for MicroPython Libraries: PyPi - This filter shows just the MicroPython libraries on PyPi. Note: You cannot pip install MicroPython libraries. See the MicroPython docs for more information on managing packages with MicroPython.

ucrypto - MicroPython package for doing fast RSA and elliptic curve cryptography, specifically digital signatures. ECDSA API design inspired from fastecdsa and implementation based on tomsfastmath.

MicroDNSSrv - A micro DNS server for MicroPython to simply respond to A queries on multi-domains with or without wildcards (used on Pycom modules & ESP32).

sensor-mqtt-homeassistant - An ESP8266/ESP32 MicroPython-based sensor platform for GPIO, DHT, analog, LED and more. Includes remote updates for .py code from web server and MQTT/Home Assistant integration.

Web MicroWebSrv - A micro HTTP web server that supports WebSockets, HTML/Python language templating and routing handlers, for MicroPython (used on Pycom modules & ESP32).

MicroWebSrv2 - The last micro web server for IoTs (MicroPython) or large servers (CPython), that supports WebSocket, routes, template engine and with really optimized architecture (mem allocations, async I/Os).

micropython-nano-gui - A tiny display-only GUI with a limited set of GUI objects (widgets) for displays whose display driver is subclassed from the framebuf class. With drivers for TFT, ePaper and OLED displays.

micro-gui - Derived from nano-gui and supporting the same displays and hosts, this provides for user input via push buttons or a navigation joystick and an optional rotary encoder.

micropython-rgbled - This wrapper module aims to reduce the work needed to work with NeoPixel (WS2812) and DotStar (APA102) RGB LED strips and matrixes.

MicroPython-SN74HCS264 - MicroPython Driver for SN74HCS264 8-Bit Parallel-Out Serial Shift Registers With Schmitt-Trigger Inputs and Inverted Outputs.

ADXL345_spi_micropython - Library for interacting through the SPI protocol with an "Analog Devices ADXL345" accelerometer from an MCU flashed with MicroPython.

Threading MicroWorkers - A micro workers class that easily manages a pool of threads to optimise simultaneous jobs and jobs endings, for MicroPython (used on Pycom modules & ESP32).

Code Generation micropy-cli - Micropy CLI is a project management/generation tool for writing MicroPython code in modern IDEs such as Visual Studio Code.

micropython-package-template - GitHub workflow supported MicroPython package template with deploys to the Python Package Index on a push to the main branch and test deploys to the Test Python Package Index on PRs.

IDEs BIPES - Web-based IDE for MicroPython with file manager, editor, code generation from blocks, IoT dashboard and Serial/USB/Bluetooth/WebREPL console on the web browser. Source: https://github.com/BIPES.

MPY Blockly is a free visual programming tools for Micropython on ESP32.By stacking coloured blocks on top of each other a control program can be rapidly generated.

MicroPython is a lean and efficient implementation of the Python 3 programming language that includes a small subset of the Python standard library and is optimised to run on microcontrollers and in constrained environments.

For programmers who are inexperienced in hardware, MPY Blockly can quickly drive a series of common hardware modules such as microcontrollers, various sensors, various motors, buttons, audio equipment, monochrome and color displays, RGB strips, etc.

Draw functions(rect,circle,text,image...), UI functions, TFT Drivers(ST7789, ST7735, ILI9431, SSD1351, SSD1331) and Monechrome Drivers(SSD1306, SSD1106, ST7302, PCD8455). Built-in six fonts and 360 bitmap icons.

This is a new Pi Pico display from Waveshare with many more pixels. It is a 2inch LCD display module, designed for Raspberry Pi Pico, with an embedded ST7789VW driver, 65K RGB colours, 320x240 pixels and an SPI interface. A Pi Pico can be plugged into the rear of the screen for very easy connection without any soldering. It sports 4 simple button switches for user input. It is bright, colourful and easy to program. The makers supply an example program (see below), which includes the display driver, making it very easy to get started. The manufacturer"s wiki can be found at:

In this guide, you’ll learn how to use the 0.96 inch SSD1306 OLED display with an ESP32 or ESP8266 using MicroPython firmware. As an example, we’ll show you how to display a simple ‘Hello, World!’ message. Later, we’ll also show you how to use other useful functions to interact with the OLED display.

To follow this tutorial you need MicroPython firmware installed in your ESP32 or ESP8266 boards. You also need an IDE to write and upload the code to your board. We suggest using Thonny IDE or uPyCraft IDE:

The library to write to the OLED display isn’t part of the standard MicroPython library by default. So, you need to upload the library to your ESP32/ESP8266 board.

After initializing the OLED display, you just need to use the text() function on the oled object to write text. After the text() function, you need to call the show() method to update the OLED.

If you want to display sensor readings and they are stored in int or float variables, they should be converted to a String. To convert the data to a string you can use the str() function:

This quick guide showed you how to use the OLED basic functionalities: write text and draw pixels with the ESP32 and ESP8266 using MicroPython. Now, you can use the OLED in your own projects to display messages, or sensor readings.

If you want to learn more about programming the ESP32 and ESP8266 boards with MicroPython, take a look our eBook: MicroPython Programming with ESP32 and ESP8266.

These displays all plug directly into the pins of your Pico and are programmed in the same way but require slightly different driver code, supplied by Waveshare via their Wiki pages.

All these displays need some memory in the Pico, a "buffer", to hold the data to be displayed on the screen. As the number of pixels increases so does the size of this buffer requirement and the space available for code decreases. As the pixel size gets smaller the basic text gets progressively harder the read as it is so small.

For this tutorial we are going to use the 1.44” 128x128 display as it provides a good compromise between basic text size, number of pixels on the display for graphics, buffer size, input buttons and price. The code is easily converted to run on the other displays.

This is simple – just push the Pico’s pins into the socket on the rear of the display and use the USB cable to connect it to your computer. Make sure you have it the right way round - the USB end is marked on the bottom of the board. Once Thonny has been installed we are ready to go.

The first line initialises the display using the driver code at the start of the program. It calls the display device LCD, but we could call it something different – but using LCD makes typing code easier!

All of these Waveshare displays use 16-bit colour codes to mix colours by varying the brightness ratios of red, green and blue in each pixel. As human eyes are more sensitive to green light, an extra bit is given to the green component. This code is called RGB565 with 5 bits for red and blue and 6 bits for green.

At this point we ported the code to work on the other four displays and found that they use a slightly different system - the blue and red bits have been swapped over:

To make things easy we are providing minimum setup programs for each of the 5 boards. Each program includes the correct screen driver, sets up the buttons and joystick, if available, and includes the correct version of the colour(R, G ,B) function. It also displays a 3-line colour check at the start.

Each program contains the screen driver code, sets up the buttons/joystick and sets the width and height variables correctly, loads the essential libraries, defines the colour(R, G, B) and clear(c) procedures. It then displays some colour checking text.

2.Near the centre of the screen, on a dark grey background, display your name, in red, and post/zip code, in cyan. Indent the post code by 10 pixels more than your name.

At this point we need to separate the Pico and the display. We need access to some of the GPIO pins to attach three 10 K 0hm potentiometers. You could press the Pico into a breadboard or, more conveniently use a Pico Decker, which has all the Pico pins neatly numbered and named. The circuit is shown in the diagram.

If your display has buttons, you will not need the extra one here. Connect up the SPI, power and button pins from your display (the product page/Wiki page for your particular display will show the pinout).

Turn all three pots in turn and check that the range of each is 0 – 255. The 1.44” display is 128 x 128 so we added these lines just above the loop and updated the loop.

This article was written by Tony Goodhew. Tony is a retired teacher of computing who starting writing code back in 1968 when it was called programming - he started with FORTRAN IV on an IBM 1130! An active Raspberry Pi community member, his main interests now are coding in MicroPython, travelling and photography.

The ESP32 touch sensor development kit, ESP32-Sense Kit, is used for evaluating and developing ESP32 touch sensor system. ESP32-Sense Kit consists of one motherboard and multiple daughterboards. The motherboard contains a display unit, a main control unit and a debug unit. The daughterboards have touch electrodes in different combinations or shapes, such as linear slider, wheel slider, matrix buttons and spring buttons, depending on the application scenarios. Users can design and add their own daughterboards for special usage cases.

ESP-WROOM-32 based development board with SH1106 OLED display (128×64 pixels), RJ-45 Ethernet connector, CAN-bus connector, Micro USB connector, USB-to-UART bridge, LiPo battery connector and charging circuit.

ESP32 development board with ePaper display, TI PCM5102A DAC, ICS43434 MEMS Microphone, CP2102N USB-to-UART bridge, microSD card slot, and LiPo charger.

Python is one of the most widely used, simple and easy-to-learn programming languages around. MicroPython is a lean implementation of the Python 3 programming language that has been pared down to run efficiently on microcontrollers.

Makerfabs MakePython ESP32 color LED is development board for IOT applications. Based on ESP32, the boards can act as WIFI node easily; there on-board UART-USB convertors to enable this module to be programmed anytime with a PC. 1.3-inch LCD display screen is suitable for the applications that need colorful displays.

MakePython ESP32 color LED is preloaded with MicroPython, simple and suitable for beginners to learn the basic programming with MicroPython, Of course, users can free to change it to make it work with other platforms such as Arduino/GCC.

I"ve kept using pygame for building my graphics/GUI, and switched to evdev for handling the TFT touch events. The reason for using evdev rather than pygame"s built-in input management (or pymouse, or any other high level stuff) is explained in the next section.

In a nutshell, this program builds some graphics in memory (RAM, not graphic) using pygame, and pushes the built graphics as bytes into the TFT screen framebuffer directly. This bypasses any driver so it is virtually compatible with any screen accessible through a framebuffer, however it also bypasses any potential optimizations coming along what would be a good driver.

First, it doesn"t work, at all. I have tried a gazillion versions of libsdl and its dependencies and they all failed consistently. I"ve tried forcing some libsdl versions downgrades, same with pygame version, just to try to get back to what the software was when my TFT screen was released (~2014). Then I aslo tried switching to C and handle SDL2 primitives directly.

All the high level solutions that work in a conventional context are embedding a display. I"ve tried pygame events, pymouse and a couple others that would not work in my case as I got rid of the notion of display on purpose. That"s why I had to go back to a generic and low level solution, and the internet introduced my to evdev, see the commented code above for more details.

Any comment on the above would be greatly appreciated, these are my first step with Raspbian, Python and TFT screens, I reckon I most probably have missed some pretty obvious stuff along the way.