PZEM-004T (updated: 06 Oct 2018, 14:38:58)

PZEM-004t Power Monitor via MQTT/HTTP.

Reading data from the PZEM-004t power monitor.

Connect RX and TX to TX and RX of esp8266 module. For 3.3V power supply power monitor needs modification (R17 must be changed with 510 Ohm resistor)