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By gioreva
#74066 Hi

I replaced an ESP07 with an ESP07S, but the circuit no longer works.
The GP16, pin4, does not go lower on command.
Are the two modules identical ?

#include <SPI.h>
#include <MFRC522.h>
#define RST_PIN 17 // Configurable, see typical pin layout above
#define SS_PIN 16 // Configurable, see typical pin layout above
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
Last edited by gioreva on Tue Feb 20, 2018 2:30 am, edited 1 time in total.