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products:sbc:edge2:applications:gpio:adc
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Table of Contents
Edge2 ADC
Introduction
This documentation will introduce the usage of ADC on the Edge2 IO board.
For Edge2, in order to use the ADC function, you need to attach the Edge2 IO board.
Hardware Information
The ADC on the Edge2 IO board is a 12-bit successive approximation register (SAR) A/D Converter.
| PIN | Device Node | |
|---|---|---|
| 9 |
ADC conversion
Use the following command to view the device node and read the ADC conversion value.
$ cd && ls /sys/bus/iio/devices/iio:device0 buffer in_voltage2_raw in_voltage6_raw of_node trigger dev in_voltage3_raw in_voltage7_raw power uevent in_voltage0_raw in_voltage4_raw in_voltage_scale scan_elements in_voltage1_raw in_voltage5_raw name subsystem $ cat /sys/bus/iio/devices/iio:device0/in_voltage4_raw 1
Last modified: 2022/12/06 04:04 by nick