CLM920_RC3(RV3 RE3)LCC Series CAT1 Module Hardware Manual
Shanghai YUGE Information Technology Co., Ltd.
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shutdown
When the module is working normally, do not shut down by cutting off the power supply, it
may damage the module Flash data. It is recommended to execute the shutdown process
through the shutdown pin or AT command.
Figure 3-10 Shutdown timing diagram
3.4.4 Reset control
CLM920_RC3 module PIN20 is the reset pin. When the application detects that the module
is abnormal, or the software is not sounding, it can reset the module, and pull this pin down
150 ~ 450ms to complete the reset. The RESET signal is relatively sensitive to interference,
and a capacitor of 10nF to 0.1uF can be reserved near the signal for signal filtering, away
from radio frequency interference signals when routing.
Table 3-9 Reset pin definition
Pin
Signal name
I/O
High level value
Description
20
RESET_N
DI
1.8V
±
0.3V
Active low
Table 3-10 Reset method
Reset method
Reset method
AT command reset
AT+CFUN=1,1
Hardware reset
Give the RESET_N pin a low level and then pull it high
