Dragino LHT65 User Manual

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LHT65 Temperature & Humidity sensor 33 / 56
3. Configure LHT65 via AT Command or LoRaWAN Downlink
Use can configure LHT65 via AT Command or LoRaWAN Downlink.
➢ AT Command Connection: See FAQ.
➢ LoRaWAN Downlink instruction for different platforms:
http://wiki.dragino.com/index.php?title=Main_Page#Use_Note_for_Server
Since firmware v1.8.0(Note*), there are two kinds of commands to configure LHT65, they are:
➢ General Commands.
These commands are to configure:
✓ General system settings like: uplink interval.
✓ LoRaWAN protocol & radio related command.
They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack(Note**). These
commands can be found on the wiki:
http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command
Note**: Please check early user manual if you don’t have v1.8.0 firmware.
➢ Commands special design for LHT65
These commands only valid for LHT65, as below:
3.1 Set Transmit Interval Time
Feature: Change LoRaWAN End Node Transmit Interval.
AT Command: AT+TDC
Command Example
Function
Response
AT+TDC?
Show current transmit Interval
30000
OK
the interval is 30000ms = 30s
AT+TDC=60000
Set Transmit Interval
OK
Set transmit interval to 60000ms =
60 seconds
Downlink Command: 0x01
Format: Command Code (0x01) followed by 3 bytes time value.
If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to
0x00003C=60(S), while type code is 01.
➢ Example 1: Downlink Payload: 0100001E // Set Transmit Interval (TDC) = 30 seconds
➢ Example 2: Downlink Payload: 0100003C // Set Transmit Interval (TDC) = 60 seconds

Dragino LHT65 Specifications

General

Brand	Dragino
Model	LHT65
Category	Accessories
Language	English