rpi-pico-nokia5110
Images on Nokia 5110 LCD using the Raspberry Pi Pico microcontroller
How to add own pictures
Step 1: jpg/png to bitmap
format BMP, 84x48 px, white background
Step 2: bitmap to hex
https://www.riyas.org/2017/01/online-tool-to-convert-bitmap-to-hex-nokia-arduino.html