esp8266-power-monitor

DIY Power Monitor project using PZEM-004T module and ESP-12F

PCB manufactured at JLCPCB

Device assembled in the DIN-rail enclosure

Web UI updates data every second using Websockets connection.

Dependencies

• Adafruit MQTT Library
• PZEM-004T-v30
• WifiManager
• Blinker
• OneButton
• Websockets

Building issues

If you see build error error: 'int SoftwareSerial::availableForWrite()' marked override, but does not override, you need to remove .pio/libdeps/*/EspSoftwareSerial folders, and EspSoftwareSerial reference from .pio/libdeps/*/PZEM-004T-v30/library.json files (remove whole "dependencies" block, don't forget about comman on the previous line).