LPM2100 mg NB Module Hardware User Guide
Shanghai Yuge Information Technology Co., Ltd.
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LED network indicator reference design is as follows
：
Figure 3-21 Network indicator circuit diagram
The size of the resistor in the network indicator circuit diagram can be adjusted
according to the LED lamp parameters.
3.12 General purpose GPIO interface
The LPM2100 mg series modules offer two GPIOs. Some of these GPIOs can be reused
for multiple functions. Consult the module provider for specific usage.
Table 3-14 General GPIO Pin Definitions
Pin
Pin name
IO
Functional description
Remarks
30
GPIO_1
IO
Universal input/output port
Reserved
31
GPIO_2
IO
Universal input/output port
Reserved
3.13 Other interface
3.13.1 WAKEUP interface
The LPM2100 mg series modules support the PSM function, which wakes up the module
by pulling the WAKEUP pin on the 19-pin.
