TCP Connection Instruction

* [[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]]

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== 2.2 Typology & Instruction ==

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[[image:https://wiki.dragino.com/images/thumb/7/75/LPS8_TCP_0.png/600px-LPS8_TCP_0.png||height="370" width="600"]]

Network Structure

[[Intrudctions>>url:https://wiki.dragino.com/index.php/Communication_with_ABP_End_Node#Example_2:_Communicate_to_TCP_Server]]

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= 3. Raw LoRa Mode TCP Connection =

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== 3.1 Support Hardware ==

* LG01N, OLG01N

* LG02, OLG02

== 3.2 Typology ==

The working topology is as below. In this mode, The Uplink LoRa packets should use a customized format.

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[[image:https://wiki.dragino.com/images/thumb/5/54/TCP_FORWARD_1.png/600px-TCP_FORWARD_1.png||height="380" width="600"]]

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TCP/IP Forward working topology

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== 3.3 Instruction Before Firmware lgw~-~-build-v5.4.1606631585-20201129-1434 ==

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=== 3.3.1 Select TCP-IP Client mode ===

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[[image:https://wiki.dragino.com/images/thumb/b/ba/TCP_FORWARD_2.png/600px-TCP_FORWARD_2.png||height="159" width="600"]]

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Select TCP-IP Client mode

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=== 3.3.2 Configure the Radio channel ===

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[[image:https://wiki.dragino.com/images/thumb/0/0e/TCP_FORWARD_3.png/600px-TCP_FORWARD_3.png||height="406" width="600"]]

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Configure the Radio channel with the match radio settings frequency as the LoRa End Node

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=== 3.3.3 Configure TCP Server Info ===

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Note: Gateway may receive many LoRa packets, it will only transfer the packet with the same ID as specify in the channel.

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[[image:https://wiki.dragino.com/images/thumb/f/fb/TCP_FORWARD_4.png/600px-TCP_FORWARD_4.png||height="330" width="600"]]

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Configure TCP Server Info

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=== 3.3.4 About uplink data format from End Node ===

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The LoRa end node should upload the data with below format:

(% class="box" %)

(((

Uplink Format: <Channel_ID>data

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For example, if we have configured 2 channels 12345 and 34567.

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And there is are three LoRa End nodes sending: 12345,34567,78

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The LG02 will accept the data from 12345 and 34567, it will ignore the data from Node 78

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**Case 1**:

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Node 12345 send <12345>field1=0.0&field2=1102.0

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Node 34567 doesn’t send anyting

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The TCP/IP server will get {"12345":"field1=0.0&field2=1102.0"}

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**Case 2**:

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Node 12345 send <12345>field1=0.0&field2=1102.0

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Node 34567 send <34567>temp=34

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The TCP/IP server will get {"34567":"temp=34","12345":"field1=0.0&field2=1102.0"}

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)))

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[[image:https://wiki.dragino.com/images/thumb/2/22/TCP_FORWARD_5.png/600px-TCP_FORWARD_5.png||height="152" width="600"]]

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Configure TCP Server Info

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LoRa End Device reference source code: [[check this link>>url:https://github.com/dragino/Arduino-Profile-Examples/blob/master/libraries/Dragino/examples/IoTServer/ThingSpeak/MQTT_Client/MQTT_DHT11_Client_updata_to_ThingSpeak_/MQTT_DHT11_Client_updata_to_ThingSpeak_.ino]].

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== 3.4 Instruction After Firmware lgw~-~-build~-~-v5.4.1612428704~-~-20210204-1653 ==

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=== 3.4.1 Configure the Radio channel ===

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[[image:https://wiki.dragino.com/images/thumb/4/40/TCP_FORWARD_7.png/600px-TCP_FORWARD_7.png||height="280" width="600"]]

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Configure the Radio channel with the match radio settings frequency as the LoRa End Node

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=== 3.4.2 Configure TCP Server Info ===

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Note: Gateway will transfer the packet if they arrive in the right format .

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[[image:https://wiki.dragino.com/images/thumb/3/36/TCP_FORWARD_6.png/600px-TCP_FORWARD_6.png||height="149" width="600"]]

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Configure TCP Server Info

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=== 3.4.3 About uplink data format from End Node ===

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The LoRa end node should upload the data with below format:

(% class="box" %)

(((

Uplink Format: **<Channel_ID>data**

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And there is a LoRa End node sending below packets:

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*<12345>Hello From Sensor1

)))

(% class="box" %)

(((

LG01/LG02 will uplink 12345:Hello From Sensor1 and usr can use logread -f to check the log.

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Thu Feb 4 08:21:49 2021 user.notice iot_keep_alive: use WAN or WiFi for internet access now

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Thu Feb 4 08:21:53 2021 daemon.info tcp_process.sh[18564]: /var/iot/channels/ CREATE 12345

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Thu Feb 4 08:21:53 2021 user.notice root: [IoT.TCP]: Check for sensor update

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Thu Feb 4 08:21:53 2021 user.notice root: [IoT.TCP]: Found Data at Local Channels: 12345

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Thu Feb 4 08:21:53 2021 user.notice root: [IoT.TCP]:

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Thu Feb 4 08:21:53 2021 user.notice root: [IoT.TCP]:~-~-~-~--

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Thu Feb 4 08:21:53 2021 user.notice root: [IoT.TCP]:server: 10.130.2.149

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Thu Feb 4 08:21:53 2021 user.notice root: [IoT.TCP]:port: 60000

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Thu Feb 4 08:21:53 2021 user.notice root: [IoT.TCP]:decoder: LG01/LG02 Raw Data

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Thu Feb 4 08:21:53 2021 user.notice root: [IoT.TCP]:tcp_data: 12345:Hello From Sensor1;

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Thu Feb 4 08:21:53 2021 user.notice root: [IoT.TCP]:~-~-~-~-~-~-

)))

and TCP server get:

[[image:https://wiki.dragino.com/images/thumb/a/a5/TCP_FORWARD_8.png/600px-TCP_FORWARD_8.png||height="307" width="600"]]

TCP Server

LoRa End Device reference source code: [[check this link>>url:https://github.com/dragino/Arduino-Profile-Examples/blob/master/libraries/Dragino/examples/IoTServer/ThingSpeak/MQTT_Client/MQTT_DHT11_Client_updata_to_ThingSpeak_/MQTT_DHT11_Client_updata_to_ThingSpeak_.ino]].

= 4. Reference =

Set up a TCP/IP server use node.js: [[Reference Link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LG02-OLG02/Firmware/customized_script/&file=node_tcp_server.txt]]

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