Dbochman/mysa-thermostat

Mysa Thermostat - Baseboard Heater Monitoring

Read-only monitoring of Mysa BB-V1-1 baseboard heater thermostats at Crosstown via the Mysa REST API.

Check Status

mysa

Returns JSON with all devices:

{
  "devices": [
    {
      "name": "Bedroom",
      "model": "BB-V1-1",
      "mac": "${MYSA_DEVICE_MAC}",
      "temp_f": 68.5,
      "temp_c": 20.3,
      "setpoint_f": 70.0,
      "setpoint_c": 21.1,
      "humidity": 45,
      "duty_pct": 50,
      "current_a": 8.5,
      "line_voltage": 240,
      "rssi_dbm": -55,
      "firmware": "3.16.2.3"
    }
  ]
}

Fields

| Field | Description | |-------|-------------| | temp_f / temp_c | Calibrated ambient temperature | | sensor_temp_f / sensor_temp_c | Raw sensor temperature (before calibration) | | setpoint_f / setpoint_c | Target temperature | | humidity | Relative humidity % | | duty_pct | Heater duty cycle (% of max current draw) | | current_a | Amperage draw | | line_voltage | Line voltage (V) | | heatsink_f / heatsink_c | Heat sink temperature | | rssi_dbm | WiFi signal strength (dBm) | | brightness_pct | Display brightness % | | lock | Child lock status |

Limitations

• Read-only — this skill cannot change setpoints or turn heaters on/off
• Temperature changes must be made via the Mysa app or the physical thermostat
• Auth tokens expire after ~30 days of inactivity; if the script returns an auth error, Dylan needs to re-authenticate interactively on the Mini

Disambiguation

These are baseboard electric heaters controlled by Mysa smart thermostats. When the user asks about:

• "Baseboard heater", "electric heat", "Mysa" — use this skill
• "Thermostat" — could be Nest (central HVAC), Mysa (baseboard), or Cielo (minisplit); ask if ambiguous
• "Temperature" at Crosstown — could be any of the three systems; ask which one, or check all three

The Nest thermostats control central HVAC. The Cielo minisplits are supplemental AC/heat. The Mysa thermostats control baseboard electric heaters.

Notes

• Temperatures are provided in both Fahrenheit and Celsius
• Duty cycle indicates how hard the heater is working (0% = off, 100% = max)
• The API is reverse-engineered from the Mysa app — may break with app updates
• Auth is AWS Cognito; tokens cached at ~/.config/mysotherm