esp8266_pzem004t ESPHOME .yaml config file Connect 6X PZEM 004t to ESP8266 (esp01s) using ESPHOME with Home Assistant Connection : PZEM 5V <-> ESP 3.3V : PZEM TX <-> ESP GPIO2 : PZEM RX <-> ESP GPIO0 : PZEM GND <-> ESP GND :