View source for TCP Connection Instruction

=Introduction=
In the TCP IP Client mode, LoRa Gateway can accept LoRa or LoRaWAN packets and send it to the TCP/IP server. 

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=LoRaWAN Mode TCP Connection= 
==Support Hardware==
*[http://www.dragino.com/products/lora-lorawan-gateway/item/148-lps8.html LPS8]
*[http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html LG308], [http://www.dragino.com/products/lora-lorawan-gateway/item/160-dlos8.html DLOS8]


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==Typology & Instruction==
[[File:LPS8_TCP_0.png|600px|none|thumb|Network Structure]]
[[Communication_with_ABP_End_Node#Example_2:_Communicate_to_TCP_Server|Intrudctions]]





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=Raw LoRa Mode TCP Connection=
==Support Hardware==
*LG01N, OLG01N
*LG02, OLG02
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==Typology==
The working topology is as below. In this mode, The Uplink LoRa packets should use a customized format. 
[[File:TCP_FORWARD_1.png|600px|none|thumb|TCP/IP Forward working topology]]

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

===Select TCP-IP Client mode===
[[File:TCP_FORWARD_2.png|600px|none|thumb|Select TCP-IP Client mode]]

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===Configure the Radio channel===
[[File:TCP_FORWARD_3.png|600px|none|thumb|Configure the Radio channel with the match radio settings frequency as the LoRa End Node]]

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===Configure TCP Server Info===

Note: Gateway may receive many LoRa packets, it will only transfer the packet with the same ID as specify in the channel.
[[File:TCP_FORWARD_4.png|600px|none|thumb|Configure TCP Server Info]] 

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

The LoRa end node should upload the data with below format: 
 Uplink Format: <span CLASS=bluetext><Channel_ID>data</span>
 For example, if we have configured 2 channels 12345 and 34567. 
 And there is are three LoRa End nodes sending: 12345,34567,78
 The LG02 will accept the data from 12345 and 34567, it will ignore the data from Node 78
 '''Case 1''': 
   Node 12345 send <12345>field1=0.0&field2=1102.0
   Node 34567 doesn’t send anyting
 The TCP/IP server will get {"12345":"field1=0.0&field2=1102.0"}
 '''Case 2''': 
   Node 12345 send <12345>field1=0.0&field2=1102.0
   Node 34567 send <34567>temp=34
 The TCP/IP server will get {"34567":"temp=34","12345":"field1=0.0&field2=1102.0"}

[[File:TCP_FORWARD_5.png|600px|none|thumb|Configure TCP Server Info]] 

 LoRa End Device reference source code: [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 check this link].


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

===Configure the Radio channel===
[[File:TCP_FORWARD_7.png|600px|none|thumb|Configure the Radio channel with the match radio settings frequency as the LoRa End Node]]

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===Configure TCP Server Info===

Note: Gateway will transfer the packet if they arrive in the right format .
[[File:TCP_FORWARD_6.png|600px|none|thumb|Configure TCP Server Info]] 

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===About uplink data format from End Node===
The LoRa end node should upload the data with below format: 
 Uplink Format: <span CLASS=bluetext><Channel_ID>data</span>
 And there is a LoRa End node sending below packets:
 *<12345>Hello From Sensor1


 LG01/LG02 will uplink 12345:Hello From Sensor1 and usr can use logread -f to check the log. 
 Thu Feb  4 08:21:49 2021 user.notice iot_keep_alive: use WAN or WiFi for internet access now
 Thu Feb  4 08:21:53 2021 daemon.info tcp_process.sh[18564]: /var/iot/channels/ CREATE 12345
 Thu Feb  4 08:21:53 2021 user.notice root: [IoT.TCP]: Check for sensor update
 Thu Feb  4 08:21:53 2021 user.notice root: [IoT.TCP]: Found Data at Local Channels: 12345
 Thu Feb  4 08:21:53 2021 user.notice root: [IoT.TCP]:
 Thu Feb  4 08:21:53 2021 user.notice root: [IoT.TCP]:-----
 Thu Feb  4 08:21:53 2021 user.notice root: [IoT.TCP]:server: 10.130.2.149
 Thu Feb  4 08:21:53 2021 user.notice root: [IoT.TCP]:port: 60000
 Thu Feb  4 08:21:53 2021 user.notice root: [IoT.TCP]:decoder: LG01/LG02 Raw Data
 Thu Feb  4 08:21:53 2021 user.notice root: [IoT.TCP]:tcp_data: 12345:Hello From Sensor1;
 Thu Feb  4 08:21:53 2021 user.notice root: [IoT.TCP]:------
 
and TCP server get: 
[[File:TCP_FORWARD_8.png|600px|none|thumb|TCP Server]] 

 LoRa End Device reference source code: [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 check this link].

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