Owner's manual

GM862-GPS Hardware User Guide
1vv0300728 Rev. 8 - 20/09/07
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 66 of 73
11 ADC section
11.1 ADC converter
11.1.1 Description
The GM862-GPS module provides a Analog to Digital Converter. The input line (named
ADC_IN1) is available on Pin #6 of the Module’s connector of the module and on pin 19 of
PL103 on EVK2 Board.
The on board A/D is 11-bit converter. It is able to read a voltage level in the range of 0÷2 volts
applied on the ADC pin input, store and convert it into 11 bit word.
Min Max Units
Input Voltage range 0 2 Volt
AD conversion - 11 bits
Resolution - < 1 mV
11.1.2 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 to GM862-GPS AT commands specification for the full description of
this function.