#include "secrets.h" // Wifi & Database credentials. const char* ssid = WIFI_SSID; // Use data from secrets.h const char* password = WIFI_PASSWORD; // Use data from secrets.h ...
const uint8_t rowPins[ROWS] = {4, 5, 6, 7}; // GPIO's used for the ROWS pins const uint8_t colPins[COLS] = {8, 9, 10, 11}; // GPIO's used for COLS Pins ...
Cheap and cheerful.