Dragino LHT52 User Manual

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LHT52 Temperature & Humidity sensor 26 / 40
3. Configure LHT52 via AT Command or LoRaWAN Downlink
Use can configure LHT52 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
There are two kinds of commands to configure LHT52, 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
➢ Commands special design for LHT52
These commands only valid for LHT52, as below:
3.1 Downlink Command Set
Command
Example
Function
Response
Downlink
AT+TDC=?
View current TDC
time
1200000
OK
Default 1200000(ms)
AT+TDC=300000
Set TDC time
OK
0X0100012C:
01:fixed command
00012C:0X00012C=300(s
econds)
ATZ
Reset node
0x04FF
AT+FDR
Restore factory
settings
0X04FE
AT+CFM=?
View the current
confirmation mode
status
0
OK
Default 0
AT+CFM=1
Turn on confirmation
mode
OK
0x0500:close
0x0501:open
05:fixed command
AT+CHE=?
View the current
sub-band select 0-7,
the default is 0
0
OK
Default 0

Dragino LHT52 Specifications

General

Brand	Dragino
Model	LHT52
Category	Accessories
Language	English