I hope this is the place, had no success with Reddit or Facebook. I’m trying to install temperature sensor DS18B20 with my ESP8266 D1 Mini. I’ve had success with blinking lights and a relay switch, ...

The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. In addition, the DS18B20 can derive power ...