113 lines
2.9 KiB
Python
113 lines
2.9 KiB
Python
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# SPDX-FileCopyrightText: 2022 Liz Clark for Adafruit Industries
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# SPDX-License-Identifier: MIT
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import os
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import sys
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import time
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import ssl
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import wifi
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import socketpool
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import microcontroller
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import board
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import busio
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import adafruit_requests
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import adafruit_ahtx0
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import adafruit_dht
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from adafruit_io.adafruit_io import IO_HTTP, AdafruitIO_RequestError
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from microcontroller import cpu
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def readDHTSensor():
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runFlag = True
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while runFlag:
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try:
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# Print the values to the serial port
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temperature_c = dhtDevice.temperature
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temperature_f = temperature_c * (9 / 5) + 32
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humidity = dhtDevice.humidity
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print(
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"Temp: {:.1f} F / {:.1f} C Humidity: {}% ".format(
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temperature_f, temperature_c, humidity
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)
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)
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runFlag = False
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except RuntimeError as error:
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# Errors happen fairly often, DHT's are hard to read, just keep going
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print(error.args[0])
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time.sleep(2.0)
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continue
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except Exception as error:
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dhtDevice.exit()
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raise error
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return [temperature_f, humidity, temperature_c]
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# Initial the dht device, with data pin connected to:
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dhtDevice = adafruit_dht.DHT11(board.GP4)
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wifi.radio.connect(os.getenv('CIRCUITPY_WIFI_SSID'), os.getenv('CIRCUITPY_WIFI_PASSWORD'))
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aio_username = os.getenv('aio_username')
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aio_key = os.getenv('aio_key')
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pool = socketpool.SocketPool(wifi.radio)
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requests = adafruit_requests.Session(pool, ssl.create_default_context())
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# Initialize an Adafruit IO HTTP API object
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io = IO_HTTP(aio_username, aio_key, requests)
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print("connected to io")
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# use Pico W's GP0 for SDA and GP1 for SCL
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#i2c = busio.I2C(board.GP1, board.GP0)
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#aht20 = adafruit_ahtx0.AHTx0(i2c)
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try:
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# get feed
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picowTemp_feed = io.get_feed("mytemperature")
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picowHumid_feed = io.get_feed("myhumidity")
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except AdafruitIO_RequestError:
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# if no feed exists, create one
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print("Feed error")
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sys.exit(-1)
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# pack feed names into an array for the loop
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feed_names = [picowTemp_feed, picowHumid_feed]
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print("feeds created")
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clock = 300
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while True:
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try:
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# when the clock runs out..
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if clock > 50:
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# read sensor
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dhtData = readDHTSensor()
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data = [dhtData[0], dhtData[1]]
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# send sensor data to respective feeds
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for z in range(2):
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io.send_data(feed_names[z]["key"], data[z])
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print("sent %0.1f" % data[z])
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time.sleep(1)
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# print sensor data to the REPL
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print("\nTemperature: %0.1f C" % data[0])
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print("Humidity: %0.1f %%" % data[1])
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print()
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time.sleep(1)
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# reset clock
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clock = 0
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else:
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clock += 1
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# pylint: disable=broad-except
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# any errors, reset Pico W
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except Exception as e:
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print("Error:\n", str(e))
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# print("Resetting microcontroller in 10 seconds")
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time.sleep(3)
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# microcontroller.reset()
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# delay
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time.sleep(1)
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print(clock)
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