Hi all, I made an app for Atmoce solar and battery systems (M-Combiner MC100 / MC100-T, M-Gateway MG100). Homey talks to the gateway on your own network over Atmoce’s official Modbus TCP interface, without the cloud.
What you get
- Solar panels, home battery and grid meter in Homey Energy
- Battery control from Flows: charge or discharge at X W, to a level or for N minutes, and limits for charging, discharging, export, import and solar production
- Solar surplus cards, to start appliances when there is power to spare (battery first)
- An Energy flow dashboard widget
- Timeline messages for faults, grid outages and gateway firmware updates
Quick start
- Atmozen app → Settings → 3rd Party System → turn on Modbus-TCP.
- Homey → Devices → + → Atmoce: add the solar panels, battery and grid meter. Homey finds the gateway by itself.
- Want Homey to charge the battery from the grid? Atmozen → Battery working mode → turn on Grid recharging. Without it, the battery only charges from the sun, whatever Homey asks. The power you set there is a ceiling.
- Discharging into the grid needs Export power to grid in the same screen.
- Homey Energy: keep the Atmoce grid meter as your only main meter. Exclude other meters (Linky, P1) from the total.
The MC100L (Lite) has no local interface and is not supported.
App Store · GitHub (issues welcome). Questions and ideas are welcome here too.
