This code scans the ports D0 - D7 on an esp8266 looking for i2c devices, if a device is found its address is displayed. It helps eliminate doubts of improper wiring of i2c devices
This code scans the ports D0 - D7 on an esp8266 looking for i2c devices, if a device is found its address is displayed. It helps eliminate doubts of improper wiring of i2c devices