More CYDs (Cheap Yellow Displays), Less Frustration
A few years ago, a Chinese electronics vendor (Sunton) started selling an inexpensive PCB with a ESP32 module, QVGA touchscreen LCD display, microSD card slot and (misconfigured) audio amplifier. More recently, these boards have branched out into a large collection of permutations of ESP32 MCU + LCD that has been collectively called the "Cheap Yellow Display" because of the PCB solder mask color and low price. Due to the variations in the display types, GPIO connections and MCUs, one program can't be used on all of them without significant modifications. I've been collecting and testing these boards and have tried to make life easier for people using them by adding the unique configuration info into my bb_spi_lcd library. The Frustrations Let me back up a bit and describe what I'm trying to fix. The LCD displays used on these boards are generally supported by multiple Arduino libraries, but in order to use them you need to know the display type, GPIO connections a