HE920 Hardware User Guide
1vv0301014 Rev.9 – 2014-01-23
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Page 63 of 84
12.1.3.
Low Pass Filter Example
.
12.2.
ADC Converter
12.2.1.
Description
The on board ADCs are 8-bit converters. They are able to read a voltage level in the range of
0-2 volts applied on the ADC pin input and store and convert it into 8 bit word.
Min
Max
Units
Input Voltage range
0
2.0
Volt
AD conversion
-
8
bits
Resolution
-
< 8.6
mV
The HE920 module provides 2 Analog to Digital Converters.
12.2.2.
Using ADC Converter
An AT command is available to use the ADC function.
The command is AT#ADC=1,2. The read value is expressed in mV
Refer to SW User Guide or AT Commands Reference Guide for the full description of this
function.
