adafruit_io_simpletest_analog_in.py

"""
Example of reading an analog light sensor
and sending the value to Adafruit IO
"""
import time
import board
import busio
from digitalio import DigitalInOut
from adafruit_esp32spi import adafruit_esp32spi, adafruit_esp32spi_wifimanager
from analogio import AnalogIn

# Import NeoPixel Library
import neopixel

# Import Adafruit IO REST Client
from adafruit_io.adafruit_io import RESTClient, AdafruitIO_RequestError

# Delay between polling and sending light sensor data, in seconds
SENSOR_DELAY = 30

# Get wifi details and more from a secrets.py file
try:
    from secrets import secrets
except ImportError:
    print("WiFi secrets are kept in secrets.py, please add them there!")
    raise

# PyPortal ESP32 Setup
esp32_cs = DigitalInOut(board.ESP_CS)
esp32_ready = DigitalInOut(board.ESP_BUSY)
esp32_reset = DigitalInOut(board.ESP_RESET)
spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset)
"""Use below for Most Boards"""
status_light = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.2) # Uncomment for Most Boards
"""Uncomment below for ItsyBitsy M4"""
#status_light = dotstar.DotStar(board.APA102_SCK, board.APA102_MOSI, 1, brightness=0.2)
wifi = adafruit_esp32spi_wifimanager.ESPSPI_WiFiManager(esp, secrets, status_light)

"""
# ESP32 Setup
esp32_cs = DigitalInOut(board.D9)
esp32_ready = DigitalInOut(board.D10)
esp32_reset = DigitalInOut(board.D5)
spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset)
status_light = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.2)
wifi = adafruit_esp32spi_wifimanager.ESPSPI_WiFiManager(esp, secrets, status_light)
"""

# Set your Adafruit IO Username and Key in secrets.py
# (visit io.adafruit.com if you need to create an account,
# or if you need your Adafruit IO key.)
ADAFRUIT_IO_USER = secrets['adafruit_io_user']
ADAFRUIT_IO_KEY = secrets['adafruit_io_key']

# Create an instance of the Adafruit IO REST client
io = RESTClient(ADAFRUIT_IO_USER, ADAFRUIT_IO_KEY, wifi)

try:
    # Get the 'light' feed from Adafruit IO
    light_feed = io.get_feed('light')
except AdafruitIO_RequestError:
    # If no 'light' feed exists, create one
    light_feed = io.create_new_feed('light')

# Set up an analog light sensor on the PyPortal
adc = AnalogIn(board.LIGHT)

while True:
    light_value = adc.value
    print('Light Level: ', light_value)
    print('Sending to Adafruit IO...')
    io.send_data(light_feed['key'], light_value)
    print('Sent!')
    # delay sending to Adafruit IO
    time.sleep(SENSOR_DELAY)