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There are levels to this:


  • Level 1: Turn on charger at specific times only - use just a timer-plug. (Assuming your charger starts charging when connected to mains, while being connected to iMiev (original and EVSE does)
  • Level 2: Turn on charger at specific times only - With some SmartHome Server like HomeAssistant: You only need a smart plug with ESP-Home or ZiGbee.
  • Level 3: Turn on charger at specific times only AND charge only to certain level - As Level 2 + WiCan to stop charging at a certain level.
  • Level 4: Turn on charger at specific times only AND charge only to certain level AND regulate the Charge-Power according to excess power or whatnot - As Level 3 + Some Wallbox which can be controlled by your smarthomeserver. **


**To control an EVSE Wallbox from home assistant use an ESP32 + https://github.com/syssi/esphome-evse-wallbox/blob/main/esp32-example-rev15.yaml


I do level 4 here with ESP32s connected to my EVSE wall boxes. One is a self made one, with the usual EVSE components + ESP32, the other is the cheapest which "Stark in strom" ever sold (not available anymore) which can be ESP32/Wifi-ized VERY VERY easily. We have two iMievs and I have a nodered flow organizing Excess-Charge for the two iMievs. Ramping up power to the two gradually as solar power becomes available. My RodeRed Flow for the Excess charging needs work, because managing two cars really is not so simple, but I will get there.

Whats working really well is the control of the EVSE wallbox through ESP-home and the code above, + The reading of the CAN of the imiev. Really very solid both, now. For now? :)


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