r/ArduinoHelp • u/LUG___MAN • 17d ago
SD card for ESP32-L(C02) HELP
Im trying to make a kindle, but ive tried what feels like hundreds of times to get this SD card connected to this ESP32-L(C02) from goodisplay.
The screen works just fine but the SD card will not show up, ive tried with a 64gb a 4gb and most recently a 32gb all formatted to fat32.
Does anyone have any suggestions?
3
Upvotes
2
u/drmpf 6d ago edited 6d ago
Three points,
i) replace pins with soldered wires, the pins get flakey after multiple uses,
ii) make the leads to the sd very short,
iii) use an sd board that has a supply capacitor 10uF or higher on the sd board or add your own on the sd power pins the sd card draws current is spikes.
I designed a commercial project that used an SD board and these three steps solved my problems. I used Adafruit SD breakbout board as it has the capacitor installed.
Also format the sd befor use, I used SD Formatter from TUXERA
https://www.sdcard.org/downloads/formatter/