Network Status Indication - SIM Tech SIMCom SIM800C Hardware Design

"AT+CADC" to read the voltage value. For details of this AT command, please refer to document [1].
Table 20: ADC specification
Parameter
Voltage range
ADC Resolution
Sampling rate
ADC precision

4.10. Network Status Indication

Table 21: Pin definition of the NETLIGHT
Pin name
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 22: Status of the NETLIGHT pin
Status
Off
64ms On/ 800ms Off
64ms On/ 3000ms Off
64ms On/ 300ms Off
Reference circuit is recommended in the following figure:
SIM800C_Hardware_Design_V1.00
Min Typ
0 -
- 10
- -
10
Pin number Description
41 Network Status Indication
SIM800C behavior
Powered off
Not registered the network
Registered to the network
GPRS communication is established
Module
NETLIGHT
Figure 35: Reference circuit of NETLIGHT
Max
2.8
-
1.0833
30
VBAT
R
4.7K
47K
37
Smart Machine Smart Decision
Unit
V
bits
MHz
mV
2014-10-30