NL865H2 Hardware Design Guide
1VV0301616 Rev. 7
Page
42
of
67
2020-04-20
5.3.3.
Indication of network service availability
The STAT LED status shows information on the network service availability and Call
status. In the NL865H2-W1 modules, the STAT LED needs an external transistor to drive
an external LED. Therefore, the status indicated in the following table is reversed with
respect to the pin status.
The STAT LED is available as Alternate function of GPIO_08.
Device Status
Led Status
Device off
Permanently off
Offline
Frequency 1Hz
，
Duty cycle 50%
Online
Frequency 0.3Hz
，
Duty cycle 10%
Data Sending
Frequency 10Hz
，
Duty cycle 50%
A schematic example could be:
Содержание NL865H2 Series
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