User Manual

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LTC2 LoRaWAN Temperature Transmitter 19 / 32
3. Configure LTC2 via AT Command or LoRaWAN Downlink
Use can configure LTC2 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 LTC2, 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. These
commands can be found on the wiki:
http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command

Commands special design for LTC2
These commands only valid for LTC2, 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
3.2 Enable PT100 channels