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Danfoss-TLX

RS485 Communication with Danfoss TLX solar inverter and REST server

I use it for Home Assistant integration where each parameter/value can be read as a sensor.

See DanfossTLX-RS485.h for parameters

sensor:
  # Danfoss TLX
  # Energy
  - platform: rest
    resource: http://[IP-Address]/TotalE
    name: "TLX Total Energy Production"
    method: GET
    value_template: "{{ value_json.value |round(3)}}"
    unit_of_measurement: kWh
    device_class: 'energy'
    state_class: total_increasing

But since HA would fire request for all entities almost at the same time it could'nt keep up and some would end up unavailable. So instead of having each value returned in a seperat call i've added them all in stame same json return. See configuration.yaml for all rest sensors

rest:
  - resource: http://[IP-Address]/All
    sensor:
      # Info
      - name: "TLX Operation Mode"
        value_template: "{{ value_json.OpMode }}"
      - name: "TLX Operation Mode Text"
        value_template: "{{ value_json.OpModeTxt }}"
      - name: "TLX Product Number"
        value_template: "{{ value_json.Product }}"
      - name: "TLX Serial" 
       value_template: "{{ value_json.Serial }}"        
      # Produkction Energy
      - name: "TLX Total Energy Production"
        value_template: "{{ value_json.TotalE |round(3)}}"
        unit_of_measurement: kWh
        device_class: 'energy'
        state_class: total_increasing
        ...
        ...

Based on TLX-ino by Torben https://github.com/TorbenNor/Danfoss-TLX

Board LOLIN D32
https://www.aliexpress.com/item/32808551116.htm Pin 16 :RXD2 Seriel in Pin 17 :TXD2 Seriel out R411A01 mini 3.3V Auto RS485 to TTL232 Converter Board
https://www.aliexpress.com/item/32782552104.html

Used Libraries - output from verbose compile Multiple libraries were found for "WiFi.h" Used: ...\packages\esp32\hardware\esp32\2.0.3\libraries\WiFi Using library WiFi at version 2.0.0 in folder: ...\packages\esp32\hardware\esp32\2.0.3\libraries\WiFi Using library WebServer at version 2.0.0 in folder: ...\packages\esp32\hardware\esp32\2.0.3\libraries\WebServer Using library ArduinoJson at version 6.19.4 in folder: ...\libraries\ArduinoJson Using library FS at version 2.0.0 in folder: ...\packages\esp32\hardware\esp32\2.0.3\libraries\FS

BOM:

esp32 lolin.

R411A01 mini 3.3V Auto RS485 to TTL232 Converter Board or similar.