觀察筆記

Prepare

Set up the iFrogLab LoRa USB to QIoT Suite Lite and iFrogLab LoRa Gateway Container. Setup steps can be found at http://www.ifroglab.com/en/?p=6613  (If in Step 10 the expected output is not displayed, using SSH to access the NAS and enter the following commands:
           insmod /usr/local/modules/cdc-acm.ko
           insmod /usr/local/modules/cp210x.ko
           insmod /usr/local/modules/ftdi_sio.ko )

If the NAS restarts, then the commands must be entered again.

 

Set up iFrogLab LoRa Gateway MQTT

• Create an IoT Application, add Things, and acquire the resourceinfo.json (refer to "How to show DHT11 data on QIoT Dashboard?").

• Open Container Station, choose your iFrog Lora Gateway, and click "Terminal".

• Enter the command: "nano /ifroglab/IL-LORA1272/LoRa-Gateway/Gateway/Python/ap-01-lora-gateway-2-read-httpGet.py" and click "OK".

• Move to "mqtt=" mosquitto_pub -d -t ifroglab/mqtt -m '%s' -h test.mosquitto.org"%(HexString);" and add a "#" in front of it. As below:

• Add a new string as below:

-h : Enter the QIoT service IP (If QIoT Suite Lite and iFrogLab LoRa Gateway are in the same NAS, enter the Container Station NAT Gateway IP -the default value is                     10.0.3.1)
-p : Default value: 21883, modify this according to your resourceinfo.json data
-t : (topic) Modify this according to your resourceinfo.json data
-u : (username) Modify this according to your resourceinfo.json data
-P : (password) Modify this according to your resourceinfo.json data
-m : (message type) Modify this according the above example

The change as below:



 

• Click "Ctrl+O" and click "Enter" to save then click "Crtl+X" to leave

• Open the "iFrogLora Gateway" Container. The following screen will appear if it has been modified successfully

• Open "QIoT Suite Lite" >  "IoT Application". The "Thing Data Log" display this status

• Go to "Rule" and you can start your IoT Application. The received data will be HEX. (Example rule as below)

 

Example rule:

[

 {

 "id": "e2bd8ea5.5c613",

 "type": "debug",

 "z": "8cc3c0a1.b6949",

 "name": "Click debug tab to watch data stream",

 "active": true,

 "console": "false",

 "complete": "false",

 "x": 557.5,

 "y": 92,

 "wires": []

 },

 {

 "id": "8ff255de.850808",

 "type": "qiotbroker in",

 "z": "8cc3c0a1.b6949",

 "name": "MQTT Message In",

 "flow": "8cc3c0a1.b6949",

 "opt_customtopic": false,

 "customtopic": "custom_topic_c13af1572d9611e8adc49f3a1551c296",

 "thing": "ec626e0b-0524-4f06-9f8d-6c590730f7a9",

 "qtopic": "qiot/things/admin/loradevice/data",

 "username": "admin",

 "rules": [

 {

 "v": "5ab347b29c31dc00322c43d0",

 "meta": {

 "unit": "°C",

 "datatype": "String"

 },

 "resid": "data"

 }

 ],

 "outputs": 1,

 "key": "r:5197487d0ab31b464c745aa7b8fa2616",

 "x": 108.5,

 "y": 43,

 "wires": [

 [

 "d0d1710e.b9a8d"

 ]

 ]

 },

 {

 "id": "d0d1710e.b9a8d",

 "type": "change",

 "z": "8cc3c0a1.b6949",

 "name": "",

 "rules": [

 {

 "t": "move",

 "p": "payload.value",

 "pt": "msg",

 "to": "payload",

 "tot": "msg"

 }

 ],

 "action": "",

 "property": "",

 "from": "",

 "to": "",

 "reg": false,

 "x": 332,

 "y": 43,

 "wires": [

 [

 "1a8b6d9a.197722"

 ]

 ]

 },

 {

 "id": "1a8b6d9a.197722",

 "type": "function",

 "z": "8cc3c0a1.b6949",

 "name": "Decoded",

 "func": "function convertFromHex(hex) {\n hex = hex.toString();//force conversion\n var str = '';\n for (var i = 1; i < hex.length + 1; i += 2)\n str += String.fromCharCode(parseInt(hex.substr(i, 2), 16));\n return str;\n}\n\nmsg.payload = convertFromHex(msg.payload.substring(0, msg.payload.length - 4));\n\nreturn msg;",

 "outputs": 1,

 "noerr": 0,

 "x": 284,

 "y": 92,

 "wires": [

 [

 "e2bd8ea5.5c613"

 ]

 ]

 }

]