GET /api/debug/adc/, POST /api/debug/adc/start/, POST /api/debug/adc/stop/

Raw ADC data and intermediate measurement results for each channel. Intended for calibration and diagnostics.

Auth: Bearer (powerUser).

start and stop additionally require diagnostic mode to be active. No service key is required.

---

Response 200

{
  "diagnostic": {
    "active": true,
    "ready": true,
    "sensorTypeId": 0,
    "gain": "x24"
  },
  "mcuTemperature": 42.3,
  "channels": [
    {
      "filteredAdc": 69020,
      "resistance": 109.73,
      "temperature": 25.1,
      "gain": "x24",
      "circuitState": "NORMAL"
    },
    {
      "filteredAdc": 130000,
      "resistance": 206.68,
      "temperature": null,
      "gain": "x24",
      "circuitState": "OPEN_CIRCUIT"
    },
    {
      "filteredAdc": 320,
      "resistance": 0.51,
      "temperature": null,
      "gain": "x24",
      "circuitState": "SHORT_CIRCUIT"
    },
    {
      "filteredAdc": 0,
      "resistance": 0.0,
      "temperature": null,
      "gain": "x24",
      "circuitState": "DISABLED"
    }
  ]
}

Response fields

Field	Type	Description
diagnostic.active	boolean	Whether the temporary channel configuration is active
diagnostic.ready	boolean	Whether fresh data with stable states for all channels has been received
diagnostic.sensorTypeId	number	Temporarily selected sensor type from GET /api/reference/sensor-types/; present when active=true
diagnostic.gain	string	Calculated gain; present when active=true
mcuTemperature	number|null	Internal MCU sensor temperature (°C), or null if invalid
channels	array	4 items (CH1..CH4)
channels[].filteredAdc	number	Filtered raw ADC value
channels[].resistance	number	Calculated resistance (ohms)
channels[].temperature	number|null	Calculated temperature (°C), or null if invalid
channels[].gain	string	Gain: "x2" or "x24"
channels[].circuitState	string	Circuit state

circuitState values

• "NORMAL"
• "OPEN_CIRCUIT"
• "SHORT_CIRCUIT"
• "UNDER_RANGE"
• "OVER_RANGE"
• "DISABLED"
• "UNKNOWN"

---

POST /api/debug/adc/start/

Temporarily enables all four channels with the specified sensor type. The firmware selects the gain. Settings and flash are not modified.

The sensorTypeId value must be taken from the items[].id field in the response from GET /api/reference/sensor-types/.

{ "sensorTypeId": 0 }

Calling this endpoint again restarts accumulation and filtering. The response contains the diagnostic object; ready=false until fresh, stable data becomes available.

POST /api/debug/adc/stop/

Ends the test and restores the channel configuration from Settings. The request body is ignored. The mode also ends after 30 seconds without a GET /api/debug/adc/ request, or when diagnostic mode is exited.