LPWA Module Series
BG77 Hardware Design
BG77_Hardware_Design 44 / 76
A reference circuit is shown in the following figure.
4.7K
47K
VBAT
2.2K
Module
NETLIGHT
Figure 20: Reference Circuit of the Network Status Indicator
NETLIGHT is a BOOT_CONFIG pin. It should not be pulled up before startup.
3.14. STATUS
The STATUS pin is used to indicate the operation status of BG77 module. It will output high level when
the module is powered on.
The following table describes the pin definition of STATUS.
Table 19: Pin Definition of STATUS
The following figure shows a reference circuit of STATUS.
NETLIGHT
Flicker slowly (200ms High/1800ms Low) Network searching
Flicker slowly (1800ms High/200ms Low) Idle
Flicker quickly (125ms High/125ms Low) Data transfer is ongoing
Always high Voice calling
Pin Name Pin No. I/O Description Comment
STATUS 78 DO Indicate the module’s operation status 1.8V power domain
NOTES
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