56 lines
1.9 KiB
Python
56 lines
1.9 KiB
Python
import paho.mqtt.client as mqtt
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import json
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import base64
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import message_pb2
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import sqlite3
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app_id = "fenceles_grazing"
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access_key = "ttn-account-v2.XVvtBVcWzkeby-fe9eLtiJBLRbjQR-b358S4z70Xa-0"
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# For now use collar id of 1, should look up collar id based on collarname from db
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def store_coord(collarname, x, y):
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print("Coord {x: " + str(x) + ", y: " + str(y) + "}")
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db = sqlite3.connect('data.sqlite')
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entries = [(1, x, y)]
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db.executemany("INSERT INTO data_point (collar_id, longitude, latitude, datetime) VALUES (?,?,?,datetime('now'))", entries)
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db.commit()
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db.close()
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# The callback for when the client receives a CONNACK response from the server.
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def on_connect(client, userdata, flags, rc):
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print("Connected with result code "+str(rc))
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# Subscribing in on_connect() means that if we lose the connection and
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# reconnect then subscriptions will be renewed.
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# client.subscribe("+/devices/+/events/activations")
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client.subscribe("+/devices/+/up")
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client.publish(appid+"/devices/+/down", "hello world")
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# The callback for when a PUBLISH message is received from the server.
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def on_message(client, userdata, msg):
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# Print entire payload
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print(msg.payload)
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# Parse payload (JSON)
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payload = json.loads(msg.payload)
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# Decode payload_raw, which is the protobuf
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code = payload['payload_raw']
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bcode = base64.b64decode(code)
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res = message_pb2.CollarResponse()
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res.ParseFromString(bcode)
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store_coord(payload['dev_id'], res.loc.x, res.loc.y)
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client = mqtt.Client()
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client.on_connect = on_connect
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client.on_message = on_message
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client.username_pw_set(app_id, access_key)
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client.connect("us-west.thethings.network", 1883, 60)
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# Blocking call that processes network traffic, dispatches callbacks and
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# handles reconnecting.
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# Other loop*() functions are available that give a threaded interface and a
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# manual interface.
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client.loop_forever()
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