Network Status Indication; Netlight Multiplexing Function - SimCom SIM800C Hardware Design

Table 19: ADC specification
Parameter
Voltage range
ADC Resolution
Sampling rate
ADC precision

4.10. Network Status Indication

Table 20: 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 21: 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:

4.10.1. NETLIGHT Multiplexing Function

Table 22: NETLIGHT multiplexing function
Pin name Pin number
NETLIGHT 41
Note: Multiplexing function need different software supply.
SIM800C_Hardware_Design_V1.02
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
M odul e
N E T LI G H T
Figure 34: Reference circuit of NETLIGHT
Mode 0(default)
NETLIGHT
Max
2.8
-
1.0833
30
V B A T
R
4. 7K
47K
Mode 1
GPIO
35
Smart Machine Smart Decision
Unit
V
bits
MHz
mV
2015-4-27