Introduction

Dragino LoRaWAN End Node support two types of Downlink Commands:

• Common Commands: They should be available for each sensor, such as change uplink interval, reset device.
• Sensor Related Commands: Only for special sensor, such as control relay, poll RS485 device.

This page shows the common commands since Dragino LoRaWAN stack DR-LWS-005. Make sure the end node support stack higher than DR-LWS-005 before checking this page.

How to use downlink command

See Devices User Manual.

Support End Node and firmware version

Common Downlink Commands

0x01 Change Uplink Interval

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

0x04 Reboot End Node

Format: Command Code (0x04) followed by FF.

If the downlink payload=04FF, the end node will reboot.

0x05 Enable/Disable Data Confirm Mode

Set end node to use confirm mode or unconfirm mode to uplink payload.

• Downlink Payload: 05000001, Set AT+CFM=1, use confirm mode to uplink.
• Downlink Payload: 05000000, set AT+CFM=0, use unconfirm mode to uplink.

0x04 Factory Data Reset

Format: Command Code (0x04) followed by FE.

If the downlink payload=04FE, Reset Parameters to Factory Default, Keys Reserve.

0x0A Set work mode

Set the work mode(1:IIC mode,2:Distance mode,3:3ADC mode,4:3DS18B20 mode,5:weight mode)

• Example 1: Downlink Payload: 0A02 // Set distance mode.
• Example 2: Downlink Payload: 0A03 // Set 3ADC mode.

0x20 LoRa® Network Join Mode

Set the Network Join Mode. (0: ABP, 1: OTAA)

• Downlink Payload: 2000, Set AT+NJM=O, use ABP mode to uplink.
• Downlink Payload: 2001, Set AT+NJM=1, use OTAA mode to uplink.

0x22 Adaptive Rate

Set the Adaptive Data Rate setting. (0: off, 1: on)

• Downlink Payload: 2201, Set AT+ADR=1.
• Downlink Payload: 2200FFFF, Set AT+ADR=O.

0x23 Application Port

Set the application port

• Example1 : Downlink Payload: 2305 // Set AT+PORT=5 .
• Example2 : Downlink Payload: 2323 // Set AT+PORT=23 .

0x24 Eight Channel Mode

Set eight channels mode,Only for US915,AU915,CN470

• Example : Downlink Payload: 2401 // Set AT+CHE=1 902.3 902.5 902.7 902.9 903.1 903.3 903.5 903.7 .

0x25 UplinkDwellTime

Set UplinkDwellTime

• Downlink Payload: 2500, Set AT+DWELLT=0 to uplink.
• Downlink Payload: 2501, Set AT+DWELLT=1 to uplink.