DESK-XZU-L/Peripherals/Temperature sensor
| HOME | SOMs | SBCs | ToloMEO Embedded Assistant |  GET A QUOTE
|
 ONLINE HELPDESK
|
| Roadmap | IoT Services | ML/AI services | Embedded Design Services |
| History | |||
|---|---|---|---|
| Issue Date | Notes | ||
| 2026/06/25 | DESK-XZU-L 2.x.x release | ||
Contents
Peripheral Temperature sensors[edit | edit source]
ONDA and ONDA Plus SOMs have a TMP421AIDCN temperature sensor onboard.
Accessing the peripheral[edit | edit source]
The temperature information can be accessed through the sysfs interface:
read the PCB temperature[edit | edit source]
root@onda:~# cat /sys/class/hwmon/hwmon0/temp1_input
the returned value has to be divided by 1000 for a °C temperature.
read the CPU temperature[edit | edit source]
root@onda:~# cat /sys/class/hwmon/hwmon0/temp2_input
the returned value has to be divided by 1000 for a °C temperature.
