esphome-sma-sunnyboy

Features

• No cloud, no Raspberry Pi

  An ESP32 within Bluetooth range of the inverter replaces SMA's cloud, Sunny Explorer and SBFspot.

• Native Home Assistant device

  Data goes over the ESPHome API, and Home Assistant discovers the device automatically.

• Energy dashboard ready

  The lifetime energy sensor plugs straight into the Home Assistant Energy dashboard.

• Live AC and DC readings

  AC power, voltage, current and grid frequency, plus power, voltage and current for each DC string.

• Inverter status

  Device status, grid relay, serial number, software version, temperature, operating time and Bluetooth signal.

• Handles the night

  When the inverter turns off at dusk, values go unavailable (or 0 if you prefer) and the ESP32 reconnects when it wakes up.

• Pure ESP-IDF Bluetooth

  Talks SMANET2+ over Bluetooth Classic SPP using the Bluedroid API directly, with no Arduino BluetoothSerial dependency.

• Pick only what you need

  Every sensor is optional. Add just the keys you want to your ESPHome YAML.

Quick start

You need an original ESP32 (ESP32-WROOM or WROVER). S2, S3, C3, C6 and H2 chips have no Bluetooth Classic and won't work.

external_components:
  - source: github://jbflowerday/esphome-sma-sunnyboy
    components: [sma_bluetooth]

sma_bluetooth:
  mac_address: "00:80:25:xx:xx:xx"
  password: "0000"
  update_interval: 30s

The full sensor list and setup steps are in the README.