SD card reader not working on expansion shield despite correct SPI wiring
Tonny12138 2024-07-11 19:12:57 46 Views0 Replies SPI devices not working on this expansion shield? I have been working around with the microSD card reader (cod. dfr0229) and this expansion shield. The arduino works great, I even have a lcd display working without any problem, but the SD card reader doesn't seem to work so well, I have connected it to the icsp pins (D4,11,12,13, 5V&GND).
2025-07-24 15:15:57 Tonny12138
Note that the SPI pins of Leonardo are not connected to any of the digital I/O pins as they are on the Uno, they are only available on the ICSP connector. From Arduino.cc.
Tonny12138 
