I have a question can I use RFID RC522 and LCD I2C with one ESP32 board. Both LCD and RFID use SDA and SCK and I'm not sure if it's possible to use both with one ESP32.
IIRC the RC522 is a SPI device and does not use I2C pins like a LCD with adapter.
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.