MeiG_SLM156_Hardware Design Manual
MeiG Smart Technology Co., Ltd
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Reference circuit is the same as that of NET_STATUS, which has two kinds, and users can choose
from one of them:
2K
VBAT
STATUS
Figure 13 Reference Circuit of STATUS
Figure 14 Reference Circuit of STATUS
3.14 ADC Function
SLM156 provides one analogy-to-digital conventers. Using AT+QADC=0 can read the voltage value of
ADC.
Table 16 ADC pin description
Pin name
Pin number
Description
Voltage range
Resolution
ADC
57
Analogy-to
–digital
converter
0.3 ~VBAT_BB
12bits
