The heart of the build is a NEO-6M GPS module which features a dedicated pulse per second (PPS) pin. The ESP8266 combines the ... To prevent the system from drifting too far out of sync when ...

It’s still based on the ESP8266 we ... a new door control system. The official hardware for ESP-RFID can be purchased through Tindie with or without an installed ESP-12F module, but as it ...