UT Command — Internal CPU Temperature

Real-time internal device temperature query.

What is it for?

Use case	Description
🌡️ Thermal monitoring	Verify equipment operating temperature
⚠️ Overheating alerts	Detect extreme thermal conditions
🔧 Diagnostics	Identify ventilation or installation issues
❄️ Extreme cold detection	Alert below-zero temperatures

Description

Through this command it is possible to query the internal temperature of the device. Triggers can also be generated for high or low internal temperatures using the AR Command.

The temperature is reported in whole degrees, not hundredths: the firmware truncates the value before building the response. A RUT+0045 response means 45°C, not 0.45°C.

Since the temperature parameter is not calibrated within the microcontroller, this command presents a typical reading error of 10%.

Features

Query only: Does not allow configuration (Q-R)
Resolution: 1°C (whole degrees, truncated)
Range: Supports positive and negative temperatures
Accuracy: ±10% typical

Command

Query

QUT

Response


RUTabbbb

Parameters

Parameter	Description
a	Sign of measured temperature (+, -)
bbbb	Temperature value in whole degrees Celsius, 4 digits with leading zeros

Examples

Negative temperature


>QUT<
RUT-0018

Reading: -18°C

Positive temperature


>QUT<
RUT+0045

Reading: +45°C

Compatibility

💾Firmware v1.03.00

SPLegacy

ULLegacy

MTLegacy

💾Firmware v1.00.00

SP-IOT

SM-IOT

ZE-IOT