A WiFi enabled PowerMeter for AC Voltage, Current and Power. Implementing a nice looking Web-Interface, a RESTful API, OpenHAB 1 & 2 Callbacks and a MQTT client.

Read energy data from modbus Power Meter Schneider Electric iEM3255 - Proof of concept.

(unofficial) Modbus Espressif component for power meters

Ant+ Power Meter comparator

Golang client for talking to Kamstrup and other power meters

MQTT to Modbus Bridge

This is a Fully Function driver of INA219 for Arduino or ESP

Basic communications with Gossen Metrawatt A2000 power meter