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LCD Display (ESP32-S2 0.96 inch)

Table of Contents

Prolog

If you buy the ESP32-S2 LCD from Waveshare with LCD (two versions are available with display), you can start quickly without soldering to use it. That's cool because there is On-board 0.96inch 160×80 pixels 65K color IPS LCD.

LCD basics (ST7735s)

Unfortunately, the examples for this board do not explain anything that is really important for use with MicroPython. I myself had extreme problems getting the LCD to work until I finally found the right information on the net. This tutorial shows a few basics for using the display.

Requirements

  • ESP32-S2 MCU WiFi Development Board with LCD (Waveshare)

Example

esp32-s2-lcd.jpg

Code

# create local script
$ touch ~/Projects/ESP/examples/display/esp32-s2-lcd_basics.py

# download driver module
$ curl -L 'https://raw.githubusercontent.com/Lupin3000/ESP/master/lib/st7735s_096_lcd.py' -o lib/st7735s_096_lcd.py

Source Code for esp32-s2-lcd_basics.py

Source Code for module lib/st7735s_096_lcd.py

# connect via rshell
(venv) $ rshell -p [SERIAL-PORT] 

# copy module file into /pyboard/lib/
/your/current/path> cp lib/st7735s_096_lcd.py /pyboard/lib/

# copy script as main.py
/your/current/path> cp examples/display/esp32-s2-lcd_basics.py /pyboard/main.py

# start repl
/your/current/path> repl

Start with keys Control + d. Stop the loop with keys Control + c. To leave the REPL, press keys Control + x.

Feel free to develop the driver class for this LCD further!

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