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Merge pull request #52 from adafruit/v2-examples
add examples for api-v2
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‎.gitignore‎

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# Translations
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*.mo
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# Local files
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release.md

‎.python-version‎

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system

‎examples/api/data.py‎

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import datetime
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# Set to your Adafruit IO key.
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ADAFRUIT_IO_USERNAME = 'YOUR ADAFRUIT IO USERNAME'
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ADAFRUIT_IO_KEY = 'YOUR ADAFRUIT IO KEY'
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# Remember, your key is a secret,
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# so make sure not to publish it when you publish this code!
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ADAFRUIT_IO_KEY = 'YOUR_AIO_KEY'
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# Set to your Adafruit IO username.
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# (go to https://accounts.adafruit.com to find your username)
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ADAFRUIT_IO_USERNAME = 'YOUR_AIO_USERNAME'
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# Create an instance of the REST client.
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aio = Client(ADAFRUIT_IO_USERNAME, ADAFRUIT_IO_KEY)

‎examples/api/feeds.py‎

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import json
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# Set to your Adafruit IO key.
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ADAFRUIT_IO_USERNAME = 'YOUR ADAFRUIT IO USERNAME'
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ADAFRUIT_IO_KEY = 'YOUR ADAFRUIT IO KEY'
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# Remember, your key is a secret,
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# so make sure not to publish it when you publish this code!
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ADAFRUIT_IO_KEY = 'YOUR_AIO_KEY'
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# Set to your Adafruit IO username.
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# (go to https://accounts.adafruit.com to find your username)
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ADAFRUIT_IO_USERNAME = 'YOUR_AIO_USERNAME'
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# Create an instance of the REST client.
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aio = Client(ADAFRUIT_IO_USERNAME, ADAFRUIT_IO_KEY)

examples/simple.py renamed to examples/api/simple.py

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from Adafruit_IO import Client
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# Set to your Adafruit IO key.
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ADAFRUIT_IO_USERNAME = 'YOUR ADAFRUIT IO USERNAME'
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ADAFRUIT_IO_KEY = 'YOUR ADAFRUIT IO KEY'
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# Remember, your key is a secret,
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# so make sure not to publish it when you publish this code!
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ADAFRUIT_IO_KEY = 'YOUR_AIO_KEY'
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# Set to your Adafruit IO username.
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# (go to https://accounts.adafruit.com to find your username)
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ADAFRUIT_IO_USERNAME = 'YOUR_AIO_USERNAME'
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# Create an instance of the REST client.
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aio = Client(ADAFRUIT_IO_USERNAME, ADAFRUIT_IO_KEY)

‎examples/basics/digital_in.py‎

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"""
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'adafruitio_06_digital_in.py'
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==================================
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Example of sending button values
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to an Adafruit IO feed.
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Author(s): Brent Rubell, Todd Treece
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"""
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# Import standard python modules
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import time
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# import Adafruit Blinka
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import board
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import digitalio
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# import Adafruit IO REST client.
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from Adafruit_IO import Client, Feed, RequestError
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# Set to your Adafruit IO key.
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# Remember, your key is a secret,
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# so make sure not to publish it when you publish this code!
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ADAFRUIT_IO_KEY = 'YOUR_AIO_KEY'
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# Set to your Adafruit IO username.
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# (go to https://accounts.adafruit.com to find your username)
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ADAFRUIT_IO_USERNAME = 'YOUR_AIO_USERNAME'
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# Create an instance of the REST client.
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aio = Client(ADAFRUIT_IO_USERNAME, ADAFRUIT_IO_KEY)
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try: # if we have a 'digital' feed
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digital = aio.feeds('digital')
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except RequestError: # create a digital feed
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feed = Feed(name="digital")
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digital = aio.create_feed(feed)
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# button set up
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button = digitalio.DigitalInOut(board.D12)
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button.direction = digitalio.Direction.INPUT
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button.pull = digitalio.Pull.UP
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button_current = 0
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while True:
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if not button.value:
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button_current = 1
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else:
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button_current = 0
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print('Button -> ', button_current)
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aio.send(digital.key, button_current)
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# avoid timeout from adafruit io
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time.sleep(1)

‎examples/basics/digital_out.py‎

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"""
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'adafruitio_07_digital_out.py'
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===================================
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Example of turning on and off a LED
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from the Adafruit IO Python Client
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Author(s): Brent Rubell, Todd Treece
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"""
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# Import standard python modules
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import time
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# import Adafruit Blinka
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import digitalio
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import board
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# import Adafruit IO REST client.
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from Adafruit_IO import Client, Feed, RequestError
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# Set to your Adafruit IO key.
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# Remember, your key is a secret,
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# so make sure not to publish it when you publish this code!
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ADAFRUIT_IO_KEY = 'YOUR_AIO_KEY'
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# Set to your Adafruit IO username.
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# (go to https://accounts.adafruit.com to find your username)
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ADAFRUIT_IO_USERNAME = 'YOUR_AIO_USERNAME'
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# Create an instance of the REST client.
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aio = Client(ADAFRUIT_IO_USERNAME, ADAFRUIT_IO_KEY)
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try: # if we have a 'digital' feed
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digital = aio.feeds('digital')
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except RequestError: # create a digital feed
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feed = Feed(name="digital")
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digital = aio.create_feed(feed)
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# led set up
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led = digitalio.DigitalInOut(board.D5)
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led.direction = digitalio.Direction.OUTPUT
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while True:
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data = aio.receive(digital.key)
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if int(data.value) == 1:
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print('received <- ON\n')
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elif int(data.value) == 0:
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print('received <- OFF\n')
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# set the LED to the feed value
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led.value = int(data.value)
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# timeout so we dont flood adafruit-io with requests
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time.sleep(0.5)

‎examples/basics/location.py‎

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"""
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'adafruitio_04_location.py'
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==================================
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Example of sending GPS data points
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to an Adafruit IO Feed using the API
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Author(s): Brent Rubell, Todd Treece
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"""
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# Import standard python modules
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import time
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# Import Adafruit IO REST client.
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from Adafruit_IO import Client, Feed, RequestError
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# Set to your Adafruit IO key.
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# Remember, your key is a secret,
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# so make sure not to publish it when you publish this code!
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ADAFRUIT_IO_KEY = 'YOUR_AIO_KEY'
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# Set to your Adafruit IO username.
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# (go to https://accounts.adafruit.com to find your username)
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ADAFRUIT_IO_USERNAME = 'YOUR_AIO_USERNAME'
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# Create an instance of the REST client.
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aio = Client(ADAFRUIT_IO_USERNAME, ADAFRUIT_IO_KEY)
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# Assign a location feed, if one exists already
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try:
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location = aio.feeds('location')
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except RequestError: # Doesn't exist, create a new feed
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feed = Feed(name="location")
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location = aio.create_feed(feed)
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# limit feed updates to every 3 seconds, avoid IO throttle
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loop_delay = 5
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# We dont' have a GPS hooked up, but let's fake it for the example/test:
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# (replace this data with values from a GPS hardware module)
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value = 0
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lat = 40.726190
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lon = -74.005334
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ele = 6 # elevation above sea level (meters)
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while True:
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print('\nSending Values to location feed...\n')
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print('\tValue: ', value)
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print('\tLat: ', lat)
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print('\tLon: ', lon)
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print('\tEle: ', ele)
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# Send location data to Adafruit IO
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aio.send_location_data(location.key, value, lat, lon, ele)
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# shift all values (for test/demo purposes)
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value += 1
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lat -= 0.01
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lon += -0.02
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ele += 1
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# Read the location data back from IO
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print('\nData Received by Adafruit IO Feed:\n')
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data = aio.receive(location.key)
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print('\tValue: {0}\n\tLat: {1}\n\tLon: {2}\n\tEle: {3}'
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.format(data.value, data.lat, data.lon, data.ele))
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# wait loop_delay seconds to avoid api throttle
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time.sleep(loop_delay)

‎examples/basics/publish.py‎

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"""
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'adafruitio_00_publish.py'
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==========================
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Publishes an incrementing
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value to a feed
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Author(s): Brent Rubell, Todd Treece for Adafruit Industries
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"""
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# Import standard python modules
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import time
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# Import Adafruit IO REST client.
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from Adafruit_IO import Client, Feed
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# holds the count for the feed
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run_count = 0
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# Set to your Adafruit IO key.
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# Remember, your key is a secret,
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# so make sure not to publish it when you publish this code!
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ADAFRUIT_IO_KEY = 'YOUR_AIO_KEY'
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# Set to your Adafruit IO username.
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# (go to https://accounts.adafruit.com to find your username)
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ADAFRUIT_IO_USERNAME = 'YOUR_AIO_USERNAME'
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# Create an instance of the REST client.
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aio = Client(ADAFRUIT_IO_USERNAME, ADAFRUIT_IO_KEY)
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# Create a new feed named 'counter'
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feed = Feed(name="Counter")
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response = aio.create_feed(feed)
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while True:
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print('sending count: ', run_count)
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run_count += 1
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aio.send_data('counter', run_count)
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# Adafruit IO is rate-limited for publishing
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# so we'll need a delay for calls to aio.send_data()
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time.sleep(3)

‎examples/basics/subscribe.py‎

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"""
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'adafruitio_01_subscribe.py'
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==========================
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Subscribes to an Adafruit IO Feed
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Author(s): Brent Rubell, Todd Treece for Adafruit Industries
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"""
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# Import standard python modules.
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import sys
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# This example uses the MQTTClient instead of the REST client
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from Adafruit_IO import MQTTClient
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# Set to your Adafruit IO key.
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# Remember, your key is a secret,
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# so make sure not to publish it when you publish this code!
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ADAFRUIT_IO_KEY = 'YOUR_AIO_KEY'
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# Set to your Adafruit IO username.
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# (go to https://accounts.adafruit.com to find your username)
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ADAFRUIT_IO_USERNAME = 'YOUR_AIO_USERNAME'
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# Set to the ID of the feed to subscribe to for updates.
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FEED_ID = 'counter'
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# Define callback functions which will be called when certain events happen.
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def connected(client):
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"""Connected function will be called when the client is connected to
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Adafruit IO.This is a good place to subscribe to feed changes. The client
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parameter passed to this function is the Adafruit IO MQTT client so you
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can make calls against it easily.
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"""
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# Subscribe to changes on a feed named Counter.
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print('Subscribing to Feed {0}'.format(FEED_ID))
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client.subscribe(FEED_ID)
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print('Waiting for feed data...')
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def disconnected(client):
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"""Disconnected function will be called when the client disconnects."""
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sys.exit(1)
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def message(client, feed_id, payload):
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"""Message function will be called when a subscribed feed has a new value.
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The feed_id parameter identifies the feed, and the payload parameter has
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the new value.
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"""
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print('Feed {0} received new value: {1}'.format(feed_id, payload))
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# Create an MQTT client instance.
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client = MQTTClient(ADAFRUIT_IO_USERNAME, ADAFRUIT_IO_KEY)
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# Setup the callback functions defined above.
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client.on_connect = connected
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client.on_disconnect = disconnected
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client.on_message = message
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# Connect to the Adafruit IO server.
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client.connect()
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# The first option is to run a thread in the background so you can continue
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# doing things in your program.
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client.loop_blocking()

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