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| 1 | +# This file is part of the Python Arduino IoT Cloud. |
| 2 | +# The MIT License (MIT) |
| 3 | +# Copyright (c) 2022 Arduino SA |
| 4 | +import time |
| 5 | +import asyncio |
| 6 | +import logging |
| 7 | +from time import strftime |
| 8 | +from arduino_iot_cloud import AIOTClient |
| 9 | +from arduino_iot_cloud import Location |
| 10 | +from arduino_iot_cloud import Schedule |
| 11 | +from arduino_iot_cloud import ColoredLight |
| 12 | +from random import randint |
| 13 | +import argparse |
| 14 | + |
| 15 | +KEY_PATH = "pkcs11:token=arduino" |
| 16 | +CERT_PATH = "pkcs11:token=arduino" |
| 17 | +CA_PATH = "ca-root.pem" |
| 18 | +DEVICE_ID = b"25deeda1-3fda-4d06-9c3c-dd31be382cd2" |
| 19 | + |
| 20 | +async def user_main(client): |
| 21 | + # Add your code here. Note to allow other tasks to run, this function |
| 22 | + # must yield execution periodically by calling asyncio.sleep(seconds). |
| 23 | + while True: |
| 24 | + # The composite cloud object's fields can be assigned to individually: |
| 25 | + client["clight"].hue = randint(0, 100) |
| 26 | + client["clight"].bri = randint(0, 100) |
| 27 | + await asyncio.sleep(1.0) |
| 28 | + |
| 29 | + |
| 30 | +def on_switch_changed(client, value): |
| 31 | + # This is a write callback for the switch that toggles the LED variable. The LED |
| 32 | + # variable can be accessed via the client object passed in the first argument. |
| 33 | + client["led"] = value |
| 34 | + |
| 35 | + |
| 36 | +def on_clight_changed(client, clight): |
| 37 | + logging.info(f"ColoredLight changed. Swi: {clight.swi} Bri: {clight.bri} Sat: {clight.sat} Hue: {clight.hue}") |
| 38 | + |
| 39 | + |
| 40 | +async def main(): |
| 41 | + # Create a client to connect to the Arduino IoT cloud. To use a secure element, set the token "pin" |
| 42 | + # and URI in "keyfile" and "certfile, and CA certificate (if used), in ssl_params. Alternatively, |
| 43 | + # a username and a password can be used for authentication, for example: |
| 44 | + # client = AIOTClient(device_id, username="username", password="password") |
| 45 | + client = AIOTClient( |
| 46 | + device_id=DEVICE_ID, |
| 47 | + ssl_params={"pin": "1234", "keyfile": KEY_PATH, "certfile": CERT_PATH, "ca_certs": CA_PATH}, |
| 48 | + ) |
| 49 | + |
| 50 | + # Register cloud objects. Note these objects must be created first in the dashboard. |
| 51 | + # This cloud object is initialized with its last known value from the cloud. When this object is updated |
| 52 | + # from the dashboard, the on_switch_changed function is called with the client object and the new value. |
| 53 | + client.register("sw1", value=None, on_write=on_switch_changed, interval=0.250) |
| 54 | + |
| 55 | + # This cloud object is updated manually in the switch's on_write_change callback. |
| 56 | + client.register("led", value=None) |
| 57 | + |
| 58 | + # This is a periodic cloud object that gets updated at fixed intervals (in this case 1 seconed) with the |
| 59 | + # value returned from its on_read function (a formatted string of the current time). Note this object's |
| 60 | + # initial value is None, it will be initialized by calling the on_read function. |
| 61 | + client.register("clk", value=None, on_read=lambda x: strftime("%H:%M:%S", time.localtime()), interval=1.0) |
| 62 | + |
| 63 | + # This is an example of a composite cloud object (a cloud object with multiple variables). In this case |
| 64 | + # a colored light with switch, hue, saturation and brightness attributes. Once initialized, the object's |
| 65 | + # attributes can be accessed using dot notation. For example: client["clight"].swi = False. |
| 66 | + client.register(ColoredLight("clight", swi=True, on_write=on_clight_changed)) |
| 67 | + |
| 68 | + # This is another example of a composite cloud object, a map location with lat and long attributes. |
| 69 | + client.register(Location("treasureisland", lat=31.264694, lon=29.979987)) |
| 70 | + |
| 71 | + # This object allows scheduling recurring events from the cloud UI. On activation of the event, if the |
| 72 | + # on_active callback is provided, it gets called with the client object and the schedule object value. |
| 73 | + # Note: The activation status of the object can also be polled using client["schedule"].active. |
| 74 | + client.register(Schedule("schedule", on_active=lambda client, value: logging.info(f"Schedule activated {value}!"))) |
| 75 | + |
| 76 | + # Start the Arduino IoT cloud client. Note a co-routine can be passed to client.run(coro), in this case it will |
| 77 | + # scheduled to run along with the other cloud objects. |
| 78 | + await client.run(user_main) |
| 79 | + |
| 80 | + |
| 81 | +if __name__ == "__main__": |
| 82 | + # Parse command line args. |
| 83 | + parser = argparse.ArgumentParser(description='arduino_iot_cloud.py') |
| 84 | + parser.add_argument("-d", "--debug", action = "store_true", help = "Enable debugging messages") |
| 85 | + args = parser.parse_args() |
| 86 | + |
| 87 | + # Assume the host has an active Internet connection. |
| 88 | + |
| 89 | + # Configure the logger. |
| 90 | + # All message equal or higher to the logger level are printed. |
| 91 | + # To see more debugging messages, pass --debug on the command line. |
| 92 | + logging.basicConfig( |
| 93 | + datefmt="%H:%M:%S", |
| 94 | + format="%(asctime)s.%(msecs)03d %(message)s", |
| 95 | + level=logging.DEBUG if args.debug else logging.INFO, |
| 96 | + ) |
| 97 | + asyncio.run(main()) |
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