SIM Tech SIMCom SIM800 - Operating Status Indication; KPLED

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SIM800_Hardware Design_V1.09 47 2016-06-30
64ms On/ 800ms Off
SIM800 not registered the network
64ms On/ 3000ms Off
SIM800 registered to the network
64ms On/ 300ms Off
GPRS communication is established
Reference circuit is recommended in the following figure:
Module
NETLIGHT
VBAT
4.7K
47K
R
Figure 43: Reference circuit of NETLIGHT
4.17. Operating Status Indication
The STATUS pin indicates the operating status of module. The pin output high when module power on, output
is low when module powered off.
Table 30: Pin definition of the STATUS
4.18. KPLED
SIM800 provides one open-drain LED driver pin.
Table 31: Pin definition of the KPLED
Reference circuit is recommended in the following figure:
Pin name
Pin number
Description
STATUS
66
Operating status indication
Pin name
Pin number
Description
KPLED
23
Sink current for keypad LED