Simple test

Ensure your device works with this simple test.

examples/http/adafruit_io_simpletest.py
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"""
Sending data to Adafruit IO and receiving it.
"""
from random import randint
import board
import busio
from digitalio import DigitalInOut

# ESP32 SPI
from adafruit_esp32spi import adafruit_esp32spi, adafruit_esp32spi_wifimanager

# Import NeoPixel Library
import neopixel

# Import Adafruit IO HTTP Client
from adafruit_io.adafruit_io import IO_HTTP, AdafruitIO_RequestError

# 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

# ESP32 Setup
try:
    esp32_cs = DigitalInOut(board.ESP_CS)
    esp32_ready = DigitalInOut(board.ESP_BUSY)
    esp32_reset = DigitalInOut(board.ESP_RESET)
except AttributeError:
    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) # 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)

# 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.)
aio_username = secrets['aio_username']
aio_key = secrets['aio_key']

# Create an instance of the Adafruit IO HTTP client
io = IO_HTTP(aio_username, aio_key, wifi)

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

# Send random integer values to the feed
random_value = randint(0, 50)
print('Sending {0} to temperature feed...'.format(random_value))
io.send_data(temperature_feed['key'], random_value)
print('Data sent!')

# Retrieve data value from the feed
print('Retrieving data from temperature feed...')
received_data = io.receive_data(temperature_feed['key'])
print('Data from temperature feed: ', received_data['value'])