Created
July 12, 2014 12:58
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Send telemetry data read form the serial port to the Azure Service Bus, using the Apache Qpid Proton AMQP library.
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#!/usr/bin/python | |
import sys | |
import commands | |
import re | |
import uuid | |
import serial | |
from proton import * | |
# Device ID | |
id = uuid.getnode() | |
# Topic address | |
address = "amqps://owner:key@arduino.servicebus.windows.net/esplora" | |
# Open serial port | |
ser = serial.Serial('/dev/ttyACM0', 9600) | |
# Create Proton objects | |
messenger = Messenger() | |
while True: | |
# Read values from Arduino in the form K1:V1_K2:V2_... | |
temp = ser.readline().rstrip('\r\n') | |
print temp | |
# Create AMQP message | |
message = Message() | |
# Initialize properties | |
message.properties = dict() | |
message.properties[symbol("did")] = symbol(id) | |
# Map string to list, symbolize, create dict and merge | |
pairs=map(lambda x:x.split(':'), temp.split('_')) | |
symbols = map(lambda x:(symbol(x[0]),int(x[1])), pairs) | |
message.properties.update(dict(symbols)) | |
message.address = address | |
messenger.put(message) | |
messenger.send() |
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