87 lines
2.6 KiB
Python
87 lines
2.6 KiB
Python
"""
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Example of sending temperature
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values to an Adafruit IO feed.
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Dependencies:
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* CircuitPython_ADT7410
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https://github.com/adafruit/Adafruit_CircuitPython_ADT7410
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"""
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import time
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import board
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import busio
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from digitalio import DigitalInOut
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# ESP32 SPI
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from adafruit_esp32spi import adafruit_esp32spi, adafruit_esp32spi_wifimanager
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# Import NeoPixel Library
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import neopixel
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# Import Adafruit IO HTTP Client
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from adafruit_io.adafruit_io import IO_HTTP, AdafruitIO_RequestError
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# Import ADT7410 Library
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import adafruit_adt7410
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# Get wifi details and more from a secrets.py file
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try:
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from secrets import secrets
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except ImportError:
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print("WiFi secrets are kept in secrets.py, please add them there!")
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raise
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# ESP32 Setup
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try:
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esp32_cs = DigitalInOut(board.ESP_CS)
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esp32_ready = DigitalInOut(board.ESP_BUSY)
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esp32_reset = DigitalInOut(board.ESP_RESET)
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except AttributeError:
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esp32_cs = DigitalInOut(board.D9)
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esp32_ready = DigitalInOut(board.D10)
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esp32_reset = DigitalInOut(board.D5)
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spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
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esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset)
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status_light = neopixel.NeoPixel(
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board.NEOPIXEL, 1, brightness=0.2
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) # Uncomment for Most Boards
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"""Uncomment below for ItsyBitsy M4"""
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# status_light = dotstar.DotStar(board.APA102_SCK, board.APA102_MOSI, 1, brightness=0.2)
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wifi = adafruit_esp32spi_wifimanager.ESPSPI_WiFiManager(esp, secrets, status_light)
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# Set your Adafruit IO Username and Key in secrets.py
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# (visit io.adafruit.com if you need to create an account,
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# or if you need your Adafruit IO key.)
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aio_username = secrets["aio_username"]
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aio_key = secrets["aio_key"]
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# Create an instance of the Adafruit IO HTTP client
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io = IO_HTTP(aio_username, aio_key, wifi)
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try:
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# Get the 'temperature' feed from Adafruit IO
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temperature_feed = io.get_feed("temperature")
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except AdafruitIO_RequestError:
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# If no 'temperature' feed exists, create one
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temperature_feed = io.create_new_feed("temperature")
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# Set up ADT7410 sensor
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i2c_bus = busio.I2C(board.SCL, board.SDA)
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adt = adafruit_adt7410.ADT7410(i2c_bus, address=0x48)
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adt.high_resolution = True
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while True:
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try:
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temperature = adt.temperature
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# set temperature value to two precision points
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temperature = "%0.2f" % (temperature)
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print("Current Temperature: {0}*C".format(temperature))
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print("Sending to Adafruit IO...")
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io.send_data(temperature_feed["key"], temperature)
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print("Data sent!")
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except (ValueError, RuntimeError) as e:
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print("Failed to get data, retrying\n", e)
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wifi.reset()
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continue
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time.sleep(0.5)
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