Dragino LDS03A, Manual

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LDS03A Outdoor Open/Close Door Sensor
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3.5 Clear count
Feature: Clear current door open.
AT Command:
Command Example Function Response
AT+CLRC Clear the count of door open events. OK
Downlink Command:
0xA6 01 // Same As AT+ CLRC
3.6 Set system time
Feature: Set system time, Unix format. See here for format detail.
AT Command:
Command Example Function Response
AT+TIMESTAMP=1611104352 Set System time to 2021-01-20 00:59:12 OK
Downlink Command:
0x306007806000 // Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
3.7 Set Time Sync Mode
Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq),
LoRaWAN server must support v1.0.3 protocol to reply to this command.
SYNCMOD is set to 1 by default. If user wants to set a different time from the LoRaWAN server,
the user needs to set this to 0.