lpickup said:One idea I had is based on the OpenEVSE charging station, which by its open source nature is modifiable by someone with the necessary expertise. If you do not have such expertise, maybe you could ask the OpenEVSE community about adding this feature.paulhome said:Would it be feasible to enhance leaf spy to stop the charging process at a certain charge level?
I would be prepared to pay for this feature.
I just started wrapping my solution to this up. I put an Arduino Nano uC* with a nrf24L01+ radio inside my OpenEVSE, and connecting the serial port to the OpenEVSE.
Then I have another uC in the car that is connected to the EV bus, it picks up the SOC data and transmit it to the uC in the OpenEVSE. The uC in the OpenEVSE also receives temperature from the plugs and a Target SOC from the car among other thins, and issues the needed serial RAPI command to OpenEVSE to stop charging when target is reached or reduce current draw if its a worn down outlet what is getting to hot to pull 3.6kW from.
I'm not sure how feasible it is to add the functionality directly to OpenEVSE as the current code pretty much uses nearly all available flash.
I would love to be able to send a CAN command to stop the charge instead, as currently it will not work with public Type2 chargers that is becoming the new standard here. (Not without using a Type2 to IEC outlet and then to my OpenEVSE)
*) board does not like greek micro symbol?!