End Device AT Commands and Downlink Command

**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.**

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= 2. How to use AT Commands or Downlink command =

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* For AT Command , See Devices User Manual for Device. The user manual can be found in each product page of [[Dragino Official Website>>url:http://www.dragino.com/]]

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* For LoRaWAN Downlink: The gateway transfer downlink command in HEX format. This page shows the HEX format downlink code for each command. but some servers use base64 as downlink code. Below are reference for how to use downlink command:

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** Use HEX format to send a downlink: [[TTN v3>>url:https://wiki.dragino.com/index.php/Notes_for_TTN#Send_Downlink_message]]

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** Use Base64 format to send a downlink: [[Chirpstack>>url:https://wiki.dragino.com/index.php/Notes_for_ChirpStack#Downlink]].

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** See use note for more serves [[Servers Note>>url:https://wiki.dragino.com/index.php/Main_Page#Use_Note_for_Server]]

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= 3. Support End Node and firmware version =

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(% border="1" style="background-color:#ffffcc; color:green" %)

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|=(% colspan="3" %) Dragino STM32 base hardware Firmware / LoRaWAN stack list

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|**Model**|**Description**|**Firmware Version <~-~-> Stack Version**

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|[[LSN50-v1>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/128-lsn50.html]], [[LSN50-V2>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/155-lsn50-v2.html]],|Open Source Generic LoRaWAN Sensor Node|LSN50 v1.6.0 <~-~-> DR-LWS-003;(((

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LSN50 v1.7.0 <~-~-> DR-LWS-005; ~-~-> Support since this version

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)))

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|[[LGT92>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/142-lgt-92.html]],|LoRaWAN GPS Tracker|LGT92 v1.6.3 <~-~-> DR-LWS-003;(((

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LGT92 v1.6.4 <~-~-> DR-LWS-005;~-~-> Support since this version

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)))

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|[[LBT1>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/165-lbt1.html]],|LoRaWAN BLE Indoor Tracker|LBT1 v1.0 <~-~-> DR-LWS-005;

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|[[RS485-LN>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/154-rs485-ln.html]],|LoRaWAN RS485 Modbus Converter|RS485-LN v1.3 <~-~-> DR-LWS-005;

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|[[LHT65>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/151-lht65.html]],|LoRaWAN Temperature & Humidity Sensor|LHT65 v1.7 <~-~-> DR-LWS-003;(((

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LHT65 v1.8.0 <~-~-> DR-LWS-005;~-~-> Support since this version

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)))

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= 4. System Management Commands =

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== 4.1 Change Uplink Interval ==

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Feature: Change LoRaWAN End Node Transmit Interval.

AT Command: AT+TDC

|=(% colspan="3" %)AT+TDC

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|**Command Example**|**Function**|**Response**

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|AT+TDC=?|Show current transmit Interval|30000(((

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OK

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the interval is 30000ms = 30s

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)))

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|AT+TDC=60000|Set Transmit Interval|OK(((

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Set transmit interval to 60000ms = 60 seconds

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)))

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Downlink Command: 0x01

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Format: Command Code (0x01) followed by 3 bytes time value.

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If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.

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* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds

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* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds

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== 4.2 Reboot End Node ==

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Feature: Reboot End Node to perform a new OTAA or ABP Join.

AT Command: ATZ

|=(% colspan="3" %)ATZ: Trig a reset of the MCU

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|**Command Example**|**Function**|**Response**

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|ATZ|Reset MCU|Device reset and show booting info

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{{{LSN50 Device/LoRa ST Module

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Image Version: XX

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Frequency Band: XX

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DevEui= XX XX XX XX XX XX XX XX

}}}

Downlink Command: 0x04

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

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

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== 4.3 Reset to factory Default ==

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Feature: Reset the parameters to Factory Default, factory default value depends on the firmware settings, the OTAA and ABP keys will reserve after this command.

AT Command: AT+FDR

|=(% colspan="3" %)Reset to factory default

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|**Command Example**|**Function**|**Response**

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|AT+FDR|Reset to factory default|Device reset to factory default parameters and show booting info

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{{{LSN50 Device/LoRa ST Module

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Image Version: XX

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Frequency Band: XX

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DevEui= XX XX XX XX XX XX XX XX

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Please set the parameters or reset Device to apply change

}}}

Downlink Command: 0x04

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

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

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== 4.4 Show Firmware Version ==

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Feature: Show firmware version. No downlink command yet.

AT Command: AT+VER

|=(% colspan="3" %)AT+VER: Image Version and Frequency Band

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|**Command Example**|**Function**|**Response**

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|AT+VER=?|Show Image version and Frequency Band|

{{{1.3 EU868

OK

}}}

Downlink Command: 0x26 (Valid in 006 stack)

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Downlink Format: 0x26

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Device will reply with firmware version info, device info. frequency band info. detail please check device user manual. Total 5 bytes Example: If device is of firmware version 1.1.0 Upload: xx ~-~- yy ~-~- zz ~-~- 110 total 5 bytes

xx: Software Type:

* 0x00 01: LGT92 Version

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* 0x00 02: LBT1

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* 0x00 03: LSE01/LDDS75/LDDS20/LSPH01/LLMS01/LSNPK01

yy: Frequency Band:

* 0x01: EU868

* 0x02: US915

* 0x03: IN865

* 0x04: AU915

* 0x05: KZ865

* 0x06: RU864

* 0x07: AS923

* 0x08: AS923-1

* 0x09: AS923-2

* 0xa0: AS923-3

zz: Subband

firmware version: v1.1.0 ~-~-> 110

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== 4.5 Show System Configure ==

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Feature: Show All configure. No downlink command yet.

AT Command: AT+CFG

|=(% colspan="3" %)AT+CFG: Print all configurations

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|**Command Example**|**Function**|**Response**

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|AT+CFG|Show all configures|

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{{{AT+DEUI = XX XX XX XX XX XX XX XX

AT+DADDR=XXXXXXXX

……….

AT+RX2WTO=X

AT+CHS=868100000

OK

}}}

= 5. Keys, IDs and EUIs management =

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== 5.1 Application EUI ==

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Feature: Get or Set the Application EUI.

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AT Command: AT+APPEUI

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|=(% colspan="3" %)AT+APPEUI

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|**Command Example**|**Function**|**Response**

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|AT+APPEUI=?|Get the Application EUI|00 b3 d5 00 00 00 00 00(((

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OK

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)))

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|AT+APPEUI=00 b3 d5 7e f0 00 4d 34|Set the Application EUI|OK

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== 5.2 Application Key ==

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Feature: Get or Set the Application Key.

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AT Command: AT+APPKEY

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|=(% colspan="3" %)AT+APPKEY

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|**Command Example**|**Function**|**Response**

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|AT+APPKEY=?|Get the Application Key|00 35 55 55 22 23 55 53 43 24 23 42 34 35 35 35(((

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OK

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)))

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|AT+APPKEY=00 35 55 55 22 23 55 53 43 24 23 42 34 35 35 35|Set the Application Key.|OK

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== 5.3 Application Session Key ==

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Feature: Get or Set the Application Session Key.

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AT Command: AT+APPSKEY

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|=(% colspan="3" %)AT+APPSKEY

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|**Command Example**|**Function**|**Response**

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|AT+APPSKEY=?|Get the Application Session Key|00 7d dc 73 33 d3 eb 9e 14 38 d5 a4 3e 62 5b e2(((

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OK

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)))

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|AT+APPSKEY=00 7d dc 73 33 d3 eb 9e 14 38 d5 a4 3e 62 5b e2|Set the Application Session Key.|(While Error in format, return AT_PARAM_ERROR)(((

OK

)))

== 5.4 Device Address ==

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Feature: Get or Set the Device Address.

AT Command: AT+DADDR

|=(% colspan="3" %)AT+DADDR

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|**Command Example**|**Function**|**Response**

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|AT+DADDR=?|Get the Application Session Key.|(While Error in format, return AT_PARAM_ERROR)(((

A8 40 41 FF

OK

)))

|AT+DADDR=A8 40 41 FF|Set the Application Session Key.|OK

== 5.5 Device EUI ==

Feature: Get or Set the Device EUI.

AT Command: AT+DEUI

|=(% colspan="3" %)AT+DEUI

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|**Command Example**|**Function**|**Response**

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|AT+DEUI=?|Get the Device EUI.|00 44 34 22 33 45 55 55(((

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OK

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)))

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|AT+DEUI=A8 40 41 FF FF 12 34 56|Set the Device EUI.|(System will write new value to Device EUI,While Error in format, return AT_PARAM_ERROR)(((

OK

)))

== 5.6 Network ID ==

Feature: Get or Set the Network ID.(You can enter this command change only after successful network connection)

AT Command: AT+NWKID

|=(% colspan="3" %)AT+NWKID

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|**Command Example**|**Function**|**Response**

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|AT+NWKID=?|Get the Network ID.|a8 40 41 ff(((

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OK

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)))

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|AT+NWKID=A8 40 41 FF|Set the Network ID.|OK

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== 5.7 Network Session Key ==

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Feature: Get or Set the Network Session Key

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AT Command: AT+NWKSKEY

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|=(% colspan="3" %)AT+NWKSKEY

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|**Command Example**|**Function**|**Response**

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|AT+NWKSKEY=?|Get the Network Session Key.|00 4f 19 25 52 ce 97 09 d7 fa 84 71 db 51 02 92(((

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OK

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)))

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|AT+NWKSKEY=A8 40 41 FF FF 12 34 56 00 01 02 04 05 06 06 07|Set the Network Session Key.|OK

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= 6. Joining and sending date on LoRaWAN network =

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== 6.1 Confirm Mode ==

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Feature: Get or Set the confirmation mode (0-1).

AT Command: AT+CFM

|=(% colspan="3" %)AT+CFM

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|**Command Example**|**Function**|**Response**

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|AT+CFM=?|Get the confirmation mode|0(((

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OK

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)))

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|AT+CFM=1|Set the confirmation mode|OK

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|AT+CFM=2|Set the confirmation mode|While Error in format, return AT_PARAM_ERROR

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Downlink Command: 0x05

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Format: Command Code (0x05) followed by 2 bytes mode value.

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If the downlink payload=0501, it means set end node to use confirm mode, while type code is 05.

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* Example 1: Downlink Payload: 0501 ~/~/ Set AT+CFM=1

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* Example 2: Downlink Payload: 0500 ~/~/ Set AT+CFM=0

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== 6.2 Confirm Status ==

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Feature: Get confirmation status of the last AT+SEND (0-1).

AT Command: AT+CFS

|=(% colspan="3" %)AT+CFS

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|**Command Example**|**Function**|**Response**

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|AT+CFS=?|Get confirmation status|0(((

OK

)))

== 6.3 Join LoRa® Network ==

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Feature: Join network.

AT Command: AT+JOIN

|=(% colspan="3" %)AT+JOIN

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|**Command Example**|**Function**|**Response**

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|AT+JOIN ?|Get imformation.|AT+JOIN: Join network(((

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OK

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While Error in format, return AT_BUSY_ERROR

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)))

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== 6.4 LoRa® Network Join Mode ==

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

AT Command: AT+NJM

|=(% colspan="3" %)AT+NJM

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|**Command Example**|**Function**|**Response**

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|AT+NJM=?|Get the Network Join Mode|1(((

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OK

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)))

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|AT+NJM=0|Set the Network Join Mode|OK

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|AT+NJM=2|Set the Network Join Mode|While Error in format, return AT_PARAM_ERROR

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Downlink Command: 0x20

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Format: Command Code (0x20) followed by 1 bytes mode value.

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If the downlink payload=2000, it means set the Network Join Mode, while type code is 20.

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* Example 1: Downlink Payload: 2000 ~/~/ Set AT+NJM=O

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* Example 2: Downlink Payload: 2001 ~/~/ Set AT+NJM=1

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== 6.5 LoRa® Network Join Status ==

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Feature: LoRa® Network Join Status.

AT Command: AT+NJS

|=(% colspan="3" %)AT+NJS

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|**Command Example**|**Function**|**Response**

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|AT+NJS=?|Get the join status.|0(((

OK

)))

== 6.6 Print Last Received Data in Raw Format ==

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Feature: Print Last Received Data in Raw Format<port:data>.

AT Command: AT+RECV

|=(% colspan="3" %)AT+RECV

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|**Command Example**|**Function**|**Response**

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|AT+RECV=?|print last received data in raw format.|0:(((

OK

)))

== 6.7 Print Last Received Data in Binary Format ==

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Feature: Print Last Received Data in Binary Format<port:data>.

AT Command: AT+RECVB

|=(% colspan="3" %)AT+RECVB

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|**Command Example**|**Function**|**Response**

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|AT+RECVB=?|print last received data in binary format (with hexadecimal values).|2: 0010(((

OK

)))

== 6.8 Send Text Data ==

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Feature: Send Text Data<port:data>.

AT Command: AT+SEND

|=(% colspan="3" %)AT+SEND

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|**Command Example**|**Function**|**Response**

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|AT+SEND=12:hello world|Send text data along with the application port.|OK(((

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While Error in format, return

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AT_BUSY_ERROR/AT_BUSY_ERROR/AT_NO_NETWORK_JOINED

)))

== 6.9 Send Hexadecimal Data ==

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Feature: Send hexadecimal data along with the application port.

AT Command: AT+SENDB

|=(% colspan="3" %)AT+SENDB

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|**Command Example**|**Function**|**Response**

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|AT+SENDB=12:abcdef0123456789|Send hexadecimal data along with the application port.|OK

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|AT+SENDB=abcdef0123456789|Send hexadecimal data along with the application port.|While Error in format, return(((

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AT_PARAM_ERROR AT_BUSY_ERROR/AT_NO_NETWORK_JOINED

)))

= 7. LoRaWAN network management =

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== 7.1 Adaptive Data Rate ==

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

AT Command: AT+ADR

|=(% colspan="3" %)AT+ADR

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|**Command Example**|**Function**|**Response**

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|AT+ADR=?|Get the Adaptive Data Rate setting.|1(((

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OK

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)))

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|AT+ADR=0|Set the Adaptive Data Rate setting.|OK

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|AT+ADR=2|Set the Adaptive Data Rate setting.|While Error in format, return(((

AT_PARAM_ERROR

)))

Downlink Command: 0x22

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If the downlink payload=2201, it means setting the adaptive data rate to 1, while type code is 22.

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* Example 1: Downlink Payload: 2201 ~/~/ Set AT+ADR=1.

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* Example 2: Downlink Payload: 2200FFFF ~/~/ Set AT+ADR=0.

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== 7.2 LoRa® Class ==

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Feature: Get or Set the Device Class(Currently only support class A, class C).

AT Command:AT+CLASS

|=(% colspan="3" %)AT+CLASS

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|**Command Example**|**Function**|**Response**

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|AT+CLASS=?|Get the Device Class.|A(((

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OK

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)))

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|AT+CLASS=C|Set the Device Class.|OK(((

)))

== 7.3 Duty Cycle Setting ==

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Feature: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing.

AT Command:AT+DCS

|=(% colspan="3" %)AT+DCS

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|**Command Example**|**Function**|**Response**

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|AT+DCS=?|Get the ETSI Duty Cycle setting.|1(((

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OK

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)))

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|AT+DCS=1|Set the ETSI Duty Cycle setting.|OK(((

)))

== 7.4 Data Rate ==

Feature: Get or Set the Data Rate. (0-7 corresponding to DR_X) . Note: while set Data Rate, please use set Adptive Data Rate, ADR=0 first. otherwise device will response to server's ADR command and change the DR to the setting from server

AT Command: AT+DR

|=(% colspan="3" %)AT+DR

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|**Command Example**|**Function**|**Response**

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|AT+DR=?|Get the Data Rate.|5(((

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OK

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)))

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|AT+DR=2|Set the Data Rate.|OK(((

)))

Downlink Command: 0x2200aaFF

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If the downlink payload=220001FF, it means setting the data rate to 1, while type code is 22 00 aa FF.

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* Example 1: Downlink Payload: 220001FF ~/~/ Set AT+DR=1.

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* Example 2: Downlink Payload: 220000FF ~/~/ Set AT+DR=0.

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== 7.5 Frame Counter Downlink ==

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Feature: Get or Set the Frame Counter Downlink.

AT Command:AT+FCD

|=(% colspan="3" %)AT+FCD

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|**Command Example**|**Function**|**Response**

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|AT+FCD=?|Get the Frame Counter Downlink.|0(((

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OK

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)))

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|AT+FCD=10|Set the Frame Counter Downlink.|(System will write new value to FCD)(((

OK

)))

== 7.6 Frame Counter Uplink ==

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Feature: Get or Set the Frame Counter Uplink.

AT Command:AT+FCU

|=(% colspan="3" %)AT+FCU

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|**Command Example**|**Function**|**Response**

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|AT+FCU=?|Get the Frame Counter Uplink.|0(((

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OK

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)))

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|AT+FCU=10|Set the Frame Counter Uplink.|OK(((

)))

== 7.7 Join Accept Delay1 ==

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Feature: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms.

AT Command:AT+JN1DL

|=(% colspan="3" %)AT+JN1DL

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|**Command Example**|**Function**|**Response**

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|AT+JN1DL=?|Get the Join Accept Delay.|5000(((

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OK

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)))

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|AT+JN1DL=10000|Set the Join Accept Delay.|OK(((

)))

== 7.8 Join Accept Delay2 ==

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Feature: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms.

AT Command:AT+JN2DL

|=(% colspan="3" %)AT+JN2DL

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|**Command Example**|**Function**|**Response**

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|AT+JN2DL=?|Get the Join Accept Delay.|6000(((

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OK

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)))

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|AT+JN2DL=20000|Set the Join Accept Delay.|OK(((

)))

== 7.9 Public Network Mode ==

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Feature: Get or Set the public network mode. (0: off, 1: on)

AT Command:AT+PNM

|=(% colspan="3" %)AT+PNM

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|**Command Example**|**Function**|**Response**

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|AT+PNM=?|Get the public network mode.|1(((

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OK

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)))

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|AT+PNM=1|Set the public network mode.|(System will write new value to PNM)(((

OK

)))

== 7.10 Receive Delay1 ==

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Feature: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms

AT Command:AT+RX1DL

|=(% colspan="3" %)AT+RX1DL

589

|**Command Example**|**Function**|**Response**

590

|AT+RX1DL=?|Get the delay.|1000(((

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OK

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)))

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|AT+RX1DL=1500|Set the delay.|OK(((

)))

== 7.11Receive Delay2 ==

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Feature: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms

AT Command:AT+RX2DL

|=(% colspan="3" %)AT+RX2DL

604

|**Command Example**|**Function**|**Response**

605

|AT+RX2DL=?|Get the delay.|2000(((

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OK

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)))

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|AT+RX2DL=2500|Set the delay.|OK(((

)))

== 7.12 Rx2 Window Data Rate ==

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Feature: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)

AT Command:AT+RX2DR

|=(% colspan="3" %)AT+RX2DR

619

|**Command Example**|**Function**|**Response**

620

|AT+RX2DR=?|Get the Rx2 window data rate.|2(((

621

OK

622

)))

623

|AT+RX2DR=6|Set the Rx2 window data rate.|OK(((

)))

== 7.13 Rx2 Window Frequency ==

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Feature: Get or Set the Rx2 window frequency

AT Command:AT+RX2FQ

|=(% colspan="3" %)AT+RX2FQ

634

|**Command Example**|**Function**|**Response**

635

|AT+RX2FQ=?|Get the Rx2 window frequency.|434665000(((

636

OK

637

)))

638

|AT+RX2FQ=434665000|Set the Rx2 window frequency.|OK(((

)))

== 7.14 Transmit Power ==

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Feature: Get or Set the Transmit Power(0-5, MAX:0, MIN:5, according to LoRaWAN Spec, or 40=10dB, 41 = 11dB, …, 50 = 20dB which is out of LoRaWAN spec. )

AT Command:AT+TXP

|=(% colspan="3" %)AT+TXP

649

|**Command Example**|**Function**|**Response**

650

|AT+TXP=?|Get the Transmit Power.|0(((

651

OK

652

)))

653

|AT+TXP=1|Set the Transmit Power.|OK(((

)))

Downlink Payload. The 4th byte of 0x22 downlink.

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If the downlink payload=22000100, it means setting the TXP to 0.

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* Example 1: Downlink Payload: 22000102 ~/~/ Set AT+TXP=2.

662

* Example 2: Downlink Payload: 220000FF ~/~/ Set AT+TXP=0.

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664

== 7.15 RSSI of the Last Received Packet ==

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Feature: Get or Set the Rx2 window frequency

AT Command:AT+RSSI

|=(% colspan="3" %)AT+RSSI

671

|**Command Example**|**Function**|**Response**

672

|AT+RSSI=?|Get the RSSI of the last received packet.|0(((

OK

)))

== 7.16 SNR of the Last Received Packet ==

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Feature: Get the SNR of the last received packet

AT Command:AT+SNR

|=(% colspan="3" %)AT+SNR

683

|**Command Example**|**Function**|**Response**

684

|AT+SNR=?|Get the RSSI of the last received packet.|0(((

OK

)))

== 7.17 Application Port ==

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Feature: Get or set the application port.

AT Command: AT+PORT

|=(% colspan="3" %)AT+PORT

695

|**Command Example**|**Function**|**Response**

696

|AT+PORT=?|Get the application port|21(((

697

OK

698

)))

699

|AT+PORT=21|Set the application port|OK

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Downlink Command: 0x23

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Format: Command Code (0x23) followed by 1 bytes port value.

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If the downlink payload=2301, it means set the application port to 1, while type code is 23.

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* Example 1: Downlink Payload: 2301 ~/~/ set the application port to 1

708

* Example 2: Downlink Payload: 2305 ~/~/ set the application port to 5

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== 7.18 Single Channel Mode ==

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712

Feature:Get or Set Frequency (Unit: Hz) for Single Channel Mode.

AT Command: AT+CHS

|=(% colspan="3" %)AT+CHS

717

|**Command Example**|**Function**|**Response**

718

|AT+CHS=?|Get Frequency for Single Channel Mode|0(((

719

OK

720

)))

721

|AT+CHS=868100000|Set Frequency for Single Channel Mode|OK

722

723

== 7.19 Eight Channel Mode ==

724

725

Feature: Get or Set eight channels mode,Only for US915,AU915,CN470.

AT Command: AT+CHE

|=(% colspan="3" %)AT+CHE

730

|**Command Example**|**Function**|**Response**

731

|AT+CHE=?|Get eight channels mode|1(((

732

902.3 902.5 902.7 902.9 903.1 903.3 903.5 903.7

OK

)))

|AT+CHE=1|Set eight channels mode|OK

737

738

Downlink Command: 0x24

739

740

Format: Command Code (0x24) followed by 1 bytes channel value.

741

742

If the downlink payload=2401, it means set channel mode to 1, while type code is 24.

743

744

* Example 1: Downlink Payload: 2401 ~/~/ set channel mode to 1

745

* Example 2: Downlink Payload: 2405 ~/~/ set channel mode to 5

746

747

== 7.20 Get or Set RXwindows1 timeout ==

748

749

Feature:Get or Set the number of symbols to detect and timeout from RXwindow1(0 to 255).

750

751

AT Command: AT+RX1WTO

752

753

|=(% colspan="3" %)AT+ RX1WTO

754

|**Command Example**|**Function**|**Response**

755

|AT+RX1WTO=?|Get RXwindows1 timeout|14(((

756

OK

757

)))

758

|AT+RX1WTO=60|Set RXwindows1 timeout|OK

759

760

AT+RX1TWO is theRxSingle timeout value of receive window 1. If it is not set, then the queriedvalue is the default value. If it is set, then the queried value is the setvalue. AT+RX2TWO is thesame as above. The definitionof RxSingle timeout is as described in the following paragraph.

761

762

[[~[~[image:https://wiki.dragino.com/images/thumb/5/51/RX1WTO.JPG/600px-RX1WTO.JPG~|~|alt="RX1WTO.JPG" height="239" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:RX1WTO.JPG]]

763

764

Increasing thisvalue is equal to extending the time that the receiving window is opened, butthe corresponding power consumption will also increase. Properly increasingthis value can increase the success rate of the downlink.

765

766

== 7.21 Get or Set RXwindows2 timeout ==

767

768

Feature:Get or Set the number of symbols to detect and timeout from RXwindow2(0 to 255).

769

770

AT Command: AT+RX2WTO

771

772

|=(% colspan="3" %)AT+ RX2WTO

773

|**Command Example**|**Function**|**Response**

774

|AT+RX2WTO=?|Get RXwindows2 timeout|7(((

775

OK

776

)))

777

|AT+RX2WTO=20|Set RXwindows2 timeout|OK

778

779

== 7.22 Setting up uplinkdwelltime (as923, au915) ==

780

781

Feature: Get or Set uplinkdwelltime

782

783

AT Command: AT+DWELLT

784

785

|=(% colspan="3" %)AT+DWELLT

786

|**Command Example**|**Function**|**Response**

787

|AT+DWELLT=?|Get uplinkdwelltime|1(((

788

OK

789

)))

790

|AT+DWELLT=0|Set uplinkdwelltime|OK

791

792

Downlink Command: 0x25

793

794

Format: Command Code (0x25) followed by 1 bytes state value.

795

796

If the downlink payload=2501, it means set uplinkdwelltime to 1, while type code is 25.

797

798

* Example 1: Downlink Payload: 2501 ~/~/ set uplinkdwelltime to 1

799

* Example 2: Downlink Payload: 2500 ~/~/ set uplinkdwelltime to 0

800

801

== 7.23 Set Packet Receiving Response Level ==

802

803

Feature: Get or Set packet receiving response level. This feature is used to set compatible with different LoRaWAN servers. If RPL doesn;t match , user will see strange message in the server portal.

RPL value:

* AT+RPL=0: Device won't immediately reply any downlink commands from platform.

808

* AT+RPL=1: Device will immediately reply message to Unconfirmed Data Down. Payload is 0x00.

809

* AT+RPL=2: Device will immediately reply message to Confirmed Data Down. Payload is 0x00 and requied response header for this command.

810

* AT+RPL=3: Device will immediately reply message to MAC Command. Payload is 0x00 and requied response header for this command.

811

* AT+RPL=4: Device will immediately reply message to Confirmed Data Down & MAC Command. Payload is 0x00 and requied response header for these two commands.

Case Analyes:

* For Class A devices, AT+RPL=0 is ok. that is defaut settings in software.

816

* For Class C devices used in ChirpStack, need to set AT+RPL=4 because Chirpstack require immedietely reply message to MAC Command.

817

* For Class C devices used in TTI, need to set AT+RPL=4 because TTI require immediately reply message to Confirmed Data Down & MAC Command.

818

819