Network Status Indication; Operating Status Indication - SimCom SIM800L Hardware Design

Parameter Min
Working voltage 2.5
Working current
Note: PWM pin must be kept at low power level when module is in the power on procedure.

4.15. Network Status Indication

Table 29: 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 30: 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:

4.16. Operating Status Indication

The pin4 is for operating status indication of the module. The pin output is high when module is powered on,
and output is low when module is powered down.
Table 31: Pin definition of the STATUS
SIM800L(MT6261)_Hardware Design_V1.01
Typ
2.8
Pin number Description
Network Status Indication
64
SIM800L behavior
SIM800L is not running
SIM800L not registered the network
SIM800L registered to the network
GPRS communication is established
Module
NETLIGHT
Figure 43: Reference circuit of NETLIGHT
Max
2.9
16
VBAT
R
4.7K
47K
45
Smart Machine Smart Decision
Unit
V
mA
2016-07-07