The OpenEVSE (with WiFi option) use an ESP8266 to post data to Emoncms and control the OpenEVSE via the RAPI protocol.
Here are the main changes:
- New web page UI to control OpenEVSE functions, settings and status etc.
- Lots of general UI improvements
- Solar PV diversion (select Eco mode to modulate charge rate based on solar PV output)
- RAPI over MQTT - control all functions of the OpenEVSE via MQTT
Following on from the thread:
Here is latest example using ‘Eco mode’ to modulate charge rate based on solar PV output. All diversion calculations are done directly on the ESP (nodeRED not required). Solar data is coming from emonPi via MQTT (simulated in this example since I don’t have solar PV onsite and it’s raining!)
Voice control using Google Home and MQTT:
Web UI Demo:
It would be really great to get some more real-world testing of these features. If you have an OpenEVSE, solar PV and are interested in helping out in return for shop credits please get in touch.
All the new changes are currently in the master branch of OpenEVSE Wifi 2.0 rep:
You will need to compile using PlatformIO (instructions in readme) and upload to the ESP8266 via USB to UART adapter. If you upload ‘openevse_dev’ enviroment any subsequent updates can be made over WiFi using OTA.