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SIM800C_Hardware_Design_V1.02 35 2015-4-27
Table 19: ADC specification
Parameter Min Typ Max Unit
Voltage range 0 - 2.8 V
ADC Resolution - 10 - bits
Sampling rate - - 1.0833 MHz
ADC precision 10 30 mV
4.10. Network Status Indication
Table 20: Pin definition of the NETLIGHT
The NETLIGHT pin can be used to drive a network status indication LED. The status of this pin is listed in
following table:
Table 21: Status of the NETLIGHT pin
Status SIM800C behavior
Off Powered off
64ms On/ 800ms Off Not registered the network
64ms On/ 3000ms Off Registered to the network
64ms On/ 300ms Off GPRS communication is established
Reference circuit is recommended in the following figure:
M odule
NETLIGHT
VBAT
4.7K
47K
R
Figure 34: Reference circuit of NETLIGHT
4.10.1. NETLIGHT Multiplexing Function
Table 22: NETLIGHT multiplexing function
Pin name Pin number Mode 0(default) Mode 1
NETLIGHT 41 NETLIGHT GPIO
Note: Multiplexing function need different software supply.
Pin name Pin number Description
NETLIGHT 41 Network Status Indication
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