MEIG SLM770A - 3.14 Status

SLM770A Module Hardware Design Manual
MeiG Smart Technology Co., Ltd 77/77
NET_ STATUS
Flash (100ms high/800ms low)
Search network process
Flash (100ms high/3000ms low)
Register network success
Flash (100ms high/300ms low)
Data business
High level
Others
Low level
Flight mode, no service, shutdown, etc.
The reference circuit is shown in the figure below:
Module
Network
Indicator
VBAT
4.7K
47K
2.2K
Figure 20 Network indication reference design drawing
3.14 STATUS
STATUS is used to indicate the working status of the module. It is the open-drain output pin. The
customer can refer to the LED indicating circuit as shown in the following figure. When the module is
normally started, the STATUS will output the low level. Otherwise, the STATUS becomes high
impedance.
Table 19 STATUS pin description
Pin name
Pin number
Description
I/O
Note
STATUS
61
Indicates the working
status of the module
OD
Need an external pull-up