Changes for page Communicate with ABP End Node without LoRaWAN Network Server --- LG308

Last modified by Xiaoling on 2023/04/20 18:14

From version < 1.8 >

edited by Xiaoling
on 2022/05/12 18:01

To version < 1.2 >

edited by Xiaoling
on 2022/05/12 17:47

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@@ -1,19 +1,14 @@
--     **Contents:**
++
--{{toc/}}
++= Introduction =
--
--= 1. Introduction =
--
  The Dragino LoRaWAN gateway can commuicate with LoRaWAN ABP End Node without the need of LoRaWAN server. It can be used in some cases such as:
  * No internet connection.
  * User wants to get data forward in gateway and forward to their server base on MQTT/HTTP, etc. (Combine ABP communication method and [[MQTT forward together>>url:https://wiki.dragino.com/index.php/MQTT_Forward_Instruction]]).
--(((
--The basic of this feature is the decoding of **LoRaWAN ABP End Node**. Requirements:
--)))
++The basic of this feature is the decoding of LoRaWAN ABP End Node. Requirements:
 . LoRaWAN End Node in ABP mode. Make sure your end node works in this mode. End node most are default set to OTAA mode
 . LoRaWAN Gateway model: [[LPS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/148-lps8.html]], [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]], [[DLOS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/160-dlos8.html]] ,[[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]]
@@ -20,40 +20,37 @@
 . Firmware version for below instruction:[[Since LG02_LG08~~-~~-build-v5.4.1593400722-20200629-1120>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]]
--= 2. How it works =
++= How it works =
--**Video Instruction**: [[https:~~/~~/youtu.be/ZBjXwmp7rwM>>url:https://youtu.be/ZBjXwmp7rwM]]
++\\Video Instruction: [[https:~~/~~/youtu.be/ZBjXwmp7rwM>>url:https://youtu.be/ZBjXwmp7rwM]]
++
++\\
++
  Assume we have the LoRaWAN tracker LGT92 which works in ABP mode and US915 band. It has below keys:
--(% class="box infomessage" %)
--(((
--AT+NWKSKEY=72 32 63 95 dd 8f e2 b2 13 66 e4 35 93 8f 55 df
++{{{AT+NWKSKEY=72 32 63 95 dd 8f e2 b2 13 66 e4 35 93 8f 55 df
  AT+APPSKEY=b3 17 f8 14 7a 43 27 8a 6a 31 c4 47 3d 55 5d 33
  AT+DADDR=2602111D
--)))
++}}}
--(((
  and we have the LG308 works and US915 band and support ABP decryption. User can input these keys in LG308 so the LG308 can communicate with LGT92.
--)))
  We need to input above keys in LG308 and enable ABP decryption.
--[[image:https://wiki.dragino.com/images/thumb/5/55/LG308_MQTT_1.png/600px-LG308_MQTT_1.png||height="329" width="600"]]
++[[~[~[image:https://wiki.dragino.com/images/thumb/5/55/LG308_MQTT_1.png/600px-LG308_MQTT_1.png~|~|height="329" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LG308_MQTT_1.png]]
  Input the ABP keys in LG308
--== 2.1 Upstream ==
++== Upstream ==
  Now when this End Node (Dev Addr=2602111D) send a uplink packet. When this packet arrive LG308, LG308 will decode it and put the decode data on the file /var/iot/channels/2602111D . So we have this data for further process with other applications in LG308.
--(((
  We can see the log of LG308 to know this packet arrive
--)))
--[[image:https://wiki.dragino.com/images/thumb/1/16/ABP_DECODE_2.png/600px-ABP_DECODE_2.png||height="205" width="600"]]
++[[~[~[image:https://wiki.dragino.com/images/thumb/1/16/ABP_DECODE_2.png/600px-ABP_DECODE_2.png~|~|height="205" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:ABP_DECODE_2.png]]
  LG308 log by "logread -f" command
@@ -60,70 +60,59 @@
  The data of End Node is stored in the file /var/iot/channels/2602111D. We can use hexdump command to check it.
--(% class="box" %)
--(((
--root@dragino-1d25dc:~~# hexdump /var/iot/channels/2602111D
--0000000 (% class="mark" %)**4646 4646 4646 3946 3030 3030 3030 3546**(%%)      ~-~-> Got RSSI and SNR
--0000010 (% class="mark" %)**cc0c 0b63 0266 017f ff7f ff00 **(%%)   ~-~-> Payload
++{{{root@dragino-1d25dc:~# hexdump /var/iot/channels/2602111D
++0000000 4646 4646 4646 3946 3030 3030 3030 3546      --> Got RSSI and SNR
++0000010 cc0c 0b63 0266 017f ff7f ff00    --> Payload
 c
--)))
++}}}
  * RSSI: 4646 4646 4646 3946 = 0xFFFF FF9F : So RSSI = (0xFFFF FF9F - 0x100000000) = -97
  * SNR: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
  * Payload: 0xcc0c 0b63 0266 017f ff7f ff00
--(% class="box" %)
--(((
--(% class="mark" %)**Notice 1**(%%): The data file stored in LG308 for the end node is bin file. If the end node sends ASCII string to gateway, the output will as below:
--in LGT92, use **AT+SEND=12**:hello world to send ASCII string
--root@dragino-1d25dc:~~# hexdump /var/iot/channels/2602111D
++
++{{{Notice 1: The data file stored in LG308 for the end node is bin file. If the end node sends ASCII string to gateway, the output will as below:
++in LGT92, use AT+SEND=12:hello world to send ASCII string
++root@dragino-1d25dc:~# hexdump /var/iot/channels/2602111D
  0000000 4646 4646 4646 3946 3030 3030 3030 3546
--0000010 6865 6c6c 6f20 776f 726c 6400      ~-~-> Got ASCII code "hello world"
++0000010 6865 6c6c 6f20 776f 726c 6400      --> Got ASCII code "hello world"
 c
--)))
++}}}
--(% class="box" %)
--(((
--(% class="mark" %)**Notice 2**(%%): The upstream payload length should match the LoRaWAN length requirement (max length depends on Frequency and DR), otherwise the gateway can't decode the payload.
--)))
++{{{Notice 2: The upstream payload length should match the LoRaWAN length requirement (max length depends on Frequency and DR), otherwise the gateway can't decode the payload.
++}}}
--=== 2.2.1 Decode Method ===
++=== Decode Method ===
--The decode methods: **ASCII String, Decode_LHT65** doesn't affect how the sensor data is stored, they are to define how should the sensor data to be sent.
++The decode methods: ASCII String, Decode_LHT65 doesn't affect how the sensor data is stored, they are to define how should the sensor data to be sent.
  For example we have a LHT65 , works in ABP mode and gateway successful get the data, which are:
--(% class="box" %)
--(((
--root@dragino-1baf44:~~# hexdump /var/iot/channels/01826108
++{{{root@dragino-1baf44:~# hexdump /var/iot/channels/01826108
  0000000 4646 4646 4646 4537 3030 3030 3030 3438
--0000010 ccd1 7fff 7fff 017f ff7f ff00
++0000010 ccd1 7fff 7fff 017f ff7f ff00
 c
--)))
++}}}
  If we choose ASCII decoder, the MQTT process will send out with mqtt-data:
--(% class="box" %)
--(((
--Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
++{{{Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
  Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:decoder: ASCII
  Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: ffffffe700000048ccd17fff7fff017fff7fff00
--)))
++}}}
  If we choose Decode_LHT65, the MQTT process will send out with mqtt-data
--(% class="box" %)
--(((
--Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
++{{{Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
  Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:decoder: Dragino_LHT65
  Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: {"Hum_SHT":32.7,"BatV":3.281,"TempC_DS":32.9,
  "EXT":"Temperature Sensor","RSSI":-24,"TempC_SHT":85.0,"SNR":8.2,"ext_sensor":0}
--)))
++}}}
  Above scripts are store in /etc/lora/decoder/. User can put their scripts here and select it in the UI.
--=== 2.2.2 How to Decode My End Node ===
++=== How to Decode My End Node ===
 / Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
@@ -145,8 +145,9 @@
  * the last line return is what will be used for MQTT
  * User can use other language ,not limited to Lua, just make sure the return is what you want to send.
--== 2.2 Downstream ==
++== Downstream ==
++
  In LG308, we can create a file in the directory /var/iot/push for downstream purpose. We recommend using each command to generate this file. This file will be used for transmission and auto-deleted after used
  The file should use below format:
@@ -239,7 +239,7 @@
 :3132333435363738 --> ASCII string "12345678"
  }}}
--= 3. Example 1: Communicate with LT-22222-L =
++= Example 1: Communicate with LT-22222-L =
  Script can be download from: [[Example Script 1>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/customized_script/&file=talk_to_lt-22222-l_v0.1.sh]]
@@ -280,7 +280,7 @@
  ~1. Input keys
--[[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png||height="335" width="600"]]
++[[~[~[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png~|~|height="335" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LPS8_LT-22222_1.png]]
  Input Keys in LPS8
@@ -288,26 +288,26 @@
 . Choose Built-in server
--[[image:https://wiki.dragino.com/images/thumb/d/d7/LPS8_LT-22222_2.png/600px-LPS8_LT-22222_2.png||height="264" width="600"]]
++[[~[~[image:https://wiki.dragino.com/images/thumb/d/d7/LPS8_LT-22222_2.png/600px-LPS8_LT-22222_2.png~|~|height="264" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LPS8_LT-22222_2.png]]
  Choose Built-in server
 . Run the script.
--[[image:https://wiki.dragino.com/images/thumb/3/39/LPS8_LT-22222_3.png/600px-LPS8_LT-22222_3.png||height="389" width="600"]]
++[[~[~[image:https://wiki.dragino.com/images/thumb/3/39/LPS8_LT-22222_3.png/600px-LPS8_LT-22222_3.png~|~|height="389" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LPS8_LT-22222_3.png]]
  Run the script
 . Output:
--[[image:https://wiki.dragino.com/images/thumb/f/fe/LPS8_LT-22222_4.png/600px-LPS8_LT-22222_4.png||height="433" width="600"]]
++[[~[~[image:https://wiki.dragino.com/images/thumb/f/fe/LPS8_LT-22222_4.png/600px-LPS8_LT-22222_4.png~|~|height="433" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LPS8_LT-22222_4.png]]
  Output from LPS8
--= 4. Example 2: Communicate to TCP Server =
++= Example 2: Communicate to TCP Server =
--[[image:https://wiki.dragino.com/images/thumb/7/75/LPS8_TCP_0.png/600px-LPS8_TCP_0.png||height="370" width="600"]]
++[[~[~[image:https://wiki.dragino.com/images/thumb/7/75/LPS8_TCP_0.png/600px-LPS8_TCP_0.png~|~|height="370" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LPS8_TCP_0.png]]
  Network Structure
@@ -322,13 +322,13 @@
  Assume we already set up ABP keys in the gateway:
--[[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png||height="335" width="600"]]
++[[~[~[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png~|~|height="335" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LPS8_LT-22222_1.png]]
  Input Keys in LPS8
  run socket tool in PC
--[[image:https://wiki.dragino.com/images/thumb/4/4b/LPS8_TCP_2.png/600px-LPS8_TCP_2.png||height="212" width="600"]]
++[[~[~[image:https://wiki.dragino.com/images/thumb/4/4b/LPS8_TCP_2.png/600px-LPS8_TCP_2.png~|~|height="212" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LPS8_TCP_2.png]]
  Socket tool
@@ -335,7 +335,7 @@
  Input Server address and port
--[[image:https://wiki.dragino.com/images/thumb/c/c6/LPS8_TCP_3.png/600px-LPS8_TCP_3.png||height="306" width="600"]]
++[[~[~[image:https://wiki.dragino.com/images/thumb/c/c6/LPS8_TCP_3.png/600px-LPS8_TCP_3.png~|~|height="306" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LPS8_TCP_3.png]]
  Input Server address and port
@@ -342,7 +342,7 @@
  See value receive in socket tool. :
--[[image:https://wiki.dragino.com/images/thumb/2/20/LPS8_TCP_4.png/600px-LPS8_TCP_4.png||height="219" width="600"]]
++[[~[~[image:https://wiki.dragino.com/images/thumb/2/20/LPS8_TCP_4.png/600px-LPS8_TCP_4.png~|~|height="219" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LPS8_TCP_4.png]]
  value receive in socket tool

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