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dingo35 / SmartEVSE-3.5

Smart Electric Vehicle Charging Station (EVSE)
MIT License
38 stars 13 forks source link

Feature Request: ModbusTCP for Multi (master-slave) SmartEVSE setup and/or far away Sensorbox #12

Open fluppie opened 4 months ago

fluppie commented 4 months ago

At the moment you need to make a 4-wire physical connection between the Sensorbox (12V, GND and A & B). It would be nice for example to cover longer distances between electrical boards without the need for extra wiring when adequate WiFi is availale. For example the Sensorbox2 has a ESP32, if we would make that data available over Modbus TCP, it can work just by plugging it in into a P1 meter (need to check if it can get 5V out of a DSMR5 meter). Saves wiring and labour hours. Same goes for EVSE's that aren't in the same electrical board but are using the same grid connection with a certain capacity. Would be nice if those could also connect over Modbus TCP instead of only Modbus RTU.

This is kind of supported by the library: https://emodbus.github.io/modbusbridge

Hopefully this can be considered. I think it can save some wiring/time when building larger setups.

dingo35 commented 4 months ago

Good idea, we already had the modbus-tcp-bridge enabled in v1.8.0 and earlier, but had to disable it because of instabilities. If we can get those out,its not a big deal...