Pre-requisites and installation

Install the Arduino IDE

$ apt-get install arduino

https://learn.adafruit.com/adafruit-trinkey-qt2040/arduino-ide-setup https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json

Install the Arduino command line interface (arduino-cli)

I prefer using a command line interfance instead of the IDE, so in this tutorial I will show the commands using the arduino-cli.

$ brew update
$ brew install arduino-cli

https://arduino.github.io/arduino-cli/0.21/installation/

How to use arduino-cli

https://www.pcbway.com/blog/Activities/Arduino_cli__compile__upload_and_manage_libraries__cores__and_boards.html

Initialize the arduino env

$ arduino-cli config init

Install the board config

Listing all boards:

$ arduino-cli core update-index
$ arduino-cli board listall

Add the additional repository from Espressif to the arduino libraries manager.

$ arduino-cli config add board_manager.additional_urls https://espressif.github.io/arduino-esp32/package_esp32_dev_index.json
$ arduino-cli core update-index
$ arduino-cli core install esp32:[email protected]

The board we are using is the lilygo t-display-s3

$ arduino-cli board listall esp32 | grep lilygo
$ arduino-cli core install esp32:esp32:lilygo_t_display_s3

If you have troubles, follow the guide from this YT video: https://www.youtube.com/watch?v=gpyeMjM9cOU&t=352s

Install the necessary libraries

Install the TFT_eSPI library from Bodmer (https://github.com/Bodmer/TFT_eSPI)

$ arduino-cli lib install "TFT_eSPI"

Other libraries needed:

$ arduino-cli lib install "BSEC Software Library"
$ arduino-cli lib install "TinyGPSPlus-ESP32"
$ arduino-cli lib install "BH1750"
$ arduino-cli lib install "EspSoftwareSerial"
$ arduino-cli lib install "Preferences"

Compile & flash it

Plug the Lilygo into the USB port and run

$ ./build.sh