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The voltage value on ADC pins can be read via AT+QADC=<port>:
AT+QADC=0: read the voltage value on ADC0
AT+QADC=1: read the voltage value on ADC1
For more details about the AT command, see document [3].
The resolution of the ADC is up to 12 bits. The following table describes the characteristic of the ADC
interface.
Table 21: Characteristics of ADC Interface
Name
Voltage Range
Resolution
Input Resistance
NOTE
1. ADC input voltage must not exceed 1.8 V.
2. It is prohibited to supply any voltage to ADC pin when VBAT is removed.
3. It is recommended to use resistor divider circuit for ADC application, and the divider's resistor
accuracy should be no less than 1 %.
4.6. Indication Signal
4.6.1. PSM Status
Table 22: Pin Definition of PSM_IND
Pin Name
Pin No.
PSM_IND
1
When PSM is enabled, the function of PSM_IND pin will be activated after the module is rebooted. When
PSM_IND is in high voltage level, the module is in normal operation state. When it is in low level, the
module is in PSM.
BG950A-GL&BG951A-GL_Hardware_Design
Min.
Typ.
0
-
6
-
-
-
Indication*
I/O
Description
DO
Indicate the module's power saving mode
LPWA Module Series
Max.
Unit
1.8
V
12
bit
TBD
KΩ
Comment
1.8 V power domain.
If unused, keep this pin
open.
47 /89
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