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3.13. ADC Function
The module provides two analog-to-digital converters (ADC). Using AT command AT+QADC=0 can read
the voltage value on ADC0 pin. Using AT command AT+QADC=1 can read the voltage value on ADC1
pin. For more details of these AT commands, please refer to document [2].
In order to improve the accuracy of ADC, the trace of ADC should be surrounded by ground.
Table 15: Pin Definition of the ADC
Pin Name
Pin No.
ADC0
45
ADC1
44
The following table describes the characteristic of the ADC function.
Table 16: Characteristic of the ADC
Parameter
ADC0 Voltage Range
ADC1 Voltage Range
ADC Resolution
3.14. Network Status Indication
The network indication pins can be used to drive a network status indicator LED. The module provides
two pins which are NET_MODE and NET_STATUS. The following tables describe pin definition and logic
level changes in different network status.
Table 17: Pin Definition of Network Indicator
Pin Name
Pin No.
NET_MODE
5
EC25-V_User_Manual
69
Description
General purpose analog to digital converter
General purpose analog to digital converter
Min.
0.3
0.3
I/O
Description
DO
Indicate the module network registration
Confidential / Released
Typ.
Max.
VBAT_BB
VBAT_BB
15
LTE Module Series
EC25-V User Manual
Unit
V
V
bits
Comment
1.8V power domain
41 /
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