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Edge2 ADC


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 Voltage Device Node
9 0~1.8V /sys/bus/iio/devices/iio:device0/in_voltage4_raw

Get Raw ADC Value

$ cat /sys/bus/iio/devices/iio:device0/in_voltage4_raw                                             

Convert the raw ADC value to Voltage:

Voltage = (value / 4096) * 1.8V

Last modified: 2022/12/06 21:03 by hyphop