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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|=(% colspan="3" %)PWR LED4G control (Second +3.3v)USB POWER(+5v) Control

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|=PWR LED|=4G control (Second +3.3v)|=USB POWER(+5v) Control

|(((

+3.3v

)))|(((

GPIO15

)))|

|+3.3v|GPIO15 |GPIO1

|+3.3v|GPIO15 |GPIO1

|+3.3v| |

|+3.3v|PA17|

(% style="background-color:#ffffcc; color:green; width:1039.22px" %)

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|(% colspan="3" style="width:1036px" %)** Dragino STM32 base hardware Firmware / LoRaWAN stack list**

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|(% style="width:216px" %)**Model**|(% style="width:346px" %)**Description**|(% style="width:472px" %)**Firmware Version <~-~-> Stack Version**

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|(% style="width:216px" %)[[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]],|(% style="width:346px" %)Open Source Generic LoRaWAN Sensor Node|(% style="width:472px" %)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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|(% style="width:216px" %) |(% style="width:346px" %) |(% style="width:472px" %)

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|(% style="width:216px" %) |(% style="width:346px" %) |(% style="width:472px" %)

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|(% style="width:216px" %) |(% style="width:346px" %) |(% style="width:472px" %)

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|(% style="width:216px" %) |(% style="width:346px" %) |(% style="width:472px" %)

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(% border="1" style="background-color:#ffffcc; color:green; width:942.222px" %)

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|=(% colspan="3" style="width: 939px;" %) Dragino STM32 base hardware Firmware / LoRaWAN stack list

56

|(% style="width:187px" %)**Model**|(% style="width:306px" %)**Description**|(% style="width:443px" %)**Firmware Version <~-~-> Stack Version**

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|(% style="width:187px" %)[[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]],|(% style="width:306px" %)Open Source Generic LoRaWAN Sensor Node|(% style="width:443px" %)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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|(% style="width:187px" %)[[LGT92>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/142-lgt-92.html]],|(% style="width:306px" %)LoRaWAN GPS Tracker|(% style="width:443px" %)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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|(% style="width:187px" %)[[LBT1>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/165-lbt1.html]],|(% style="width:306px" %)LoRaWAN BLE Indoor Tracker|(% style="width:443px" %)LBT1 v1.0 <~-~-> DR-LWS-005;

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|(% style="width:187px" %)[[RS485-LN>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/154-rs485-ln.html]],|(% style="width:306px" %)LoRaWAN RS485 Modbus Converter|(% style="width:443px" %)RS485-LN v1.3 <~-~-> DR-LWS-005;

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|(% style="width:187px" %)[[LHT65>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/151-lht65.html]],|(% style="width:306px" %)LoRaWAN Temperature & Humidity Sensor|(% style="width:443px" %)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.

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(% class="box infomessage" %)

(((

AT Command: AT+TDC

)))

(% border="1" style="background-color:#ffffcc; color:green; width:727.222px" %)

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|=(% colspan="3" style="width: 724px;" %) AT+TDC

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|(% style="width:165px" %)**Command Example**|(% style="width:227px" %)**Function**|(% style="width:329px" %)**Response**

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|(% style="width:165px" %)AT+TDC=?|(% style="width:227px" %)Show current transmit Interval|(% style="width:329px" %)30000(((

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OK

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the interval is 30000ms = 30s

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)))

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|(% style="width:165px" %)AT+TDC=60000|(% style="width:227px" %)Set Transmit Interval|(% style="width:329px" %)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

(% border="1" style="background-color:#ffffcc; color:green; width:727.222px" %)

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

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

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~)~)~)

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|ATZ|Reset MCU|(((

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Device reset and show booting info

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LSN50 Device/LoRa ST Module

Image Version: XX

Frequency Band: XX

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

499

)))

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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

511

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

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

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OK

514

)))

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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

526

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

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

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OK

529

)))

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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.

540

* 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

549

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

550

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

551

OK

552

)))

553

|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

566

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

567

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

568

OK

569

)))

570

|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

581

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

582

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

583

OK

584

)))

585

|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

596

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

597

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

598

OK

599

)))

600

|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

611

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

612

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

613

OK

614

)))

615

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

OK

)))

== 7.10 Receive Delay1 ==

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623

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

628

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

629

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

630

OK

631

)))

632

|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

643

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

644

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

645

OK

646

)))

647

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

)))

== 7.12 Rx2 Window Data Rate ==

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653

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

AT Command:AT+RX2DR

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

658

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

659

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

660

OK

661

)))

662

|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

673

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

674

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

675

OK

676

)))

677

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

)))

== 7.14 Transmit Power ==

682

683

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

688

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

689

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

690

OK

691

)))

692

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

)))

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

697

698

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

699

700

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

701

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

702

703

== 7.15 RSSI of the Last Received Packet ==

704

705

Feature: Get or Set the Rx2 window frequency

AT Command:AT+RSSI

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

710

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

711

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

OK

)))

== 7.16 SNR of the Last Received Packet ==

716

717

Feature: Get the SNR of the last received packet

AT Command:AT+SNR

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

722

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

723

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

OK

)))

== 7.17 Application Port ==

728

729

Feature: Get or set the application port.

AT Command: AT+PORT

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

734

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

735

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

736

OK

737

)))

738

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

739

740

Downlink Command: 0x23

741

742

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

743

744

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

745

746

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

747

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

748

749

== 7.18 Single Channel Mode ==

750

751

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

AT Command: AT+CHS

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

756

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

757

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

758

OK

759

)))

760

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

761

762

== 7.19 Eight Channel Mode ==

763

764

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

AT Command: AT+CHE

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

769

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

770

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

771

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

776

777

Downlink Command: 0x24

778

779

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

780

781

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

782

783

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

784

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

785

786

== 7.20 Get or Set RXwindows1 timeout ==

787

788

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

789

790

AT Command: AT+RX1WTO

791

792

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

793

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

794

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

795

OK

796

)))

797

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

798

799

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.

800

801

[[~[~[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]]

802

803

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.

804

805

== 7.21 Get or Set RXwindows2 timeout ==

806

807

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

808

809

AT Command: AT+RX2WTO

810

811

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

812

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

813

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

814

OK

815

)))

816

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

817

818

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

819

820

Feature: Get or Set uplinkdwelltime

821

822

AT Command: AT+DWELLT

823

824

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

825

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

826

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

827

OK

828

)))

829

|AT+DWELLT=0|Set uplinkdwelltime|OK

830

831

Downlink Command: 0x25

832

833

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

834

835

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

836

837

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

838

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

839

840

== 7.23 Set Packet Receiving Response Level ==

841

842

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.

847

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

848

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

849

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

850

* 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.

855

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

856

* 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.

857

858