Simple test

Ensure your device works with this simple test.

examples/minimqtt_simpletest.py
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import board
import busio
from digitalio import DigitalInOut
import neopixel
from adafruit_esp32spi import adafruit_esp32spi
from adafruit_esp32spi import adafruit_esp32spi_wifimanager
import adafruit_esp32spi.adafruit_esp32spi_socket as socket

from adafruit_minimqtt import MQTT

### WiFi ###

# 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

# If you are using a board with pre-defined ESP32 Pins:
esp32_cs = DigitalInOut(board.ESP_CS)
esp32_ready = DigitalInOut(board.ESP_BUSY)
esp32_reset = DigitalInOut(board.ESP_RESET)

# If you have an externally connected ESP32:
# 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)
"""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)
# Uncomment below for an externally defined RGB LED
# import adafruit_rgbled
# from adafruit_esp32spi import PWMOut
# RED_LED = PWMOut.PWMOut(esp, 26)
# GREEN_LED = PWMOut.PWMOut(esp, 27)
# BLUE_LED = PWMOut.PWMOut(esp, 25)
# status_light = adafruit_rgbled.RGBLED(RED_LED, BLUE_LED, GREEN_LED)
wifi = adafruit_esp32spi_wifimanager.ESPSPI_WiFiManager(esp, secrets, status_light)

### Topic Setup ###

# MQTT Topic
# Use this topic if you'd like to connect to a standard MQTT broker
mqtt_topic = 'test/topic'

# Adafruit IO-style Topic
# Use this topic if you'd like to connect to io.adafruit.com
# mqtt_topic = 'aio_user/feeds/temperature'

### Code ###

# Define callback methods which are called when events occur
# pylint: disable=unused-argument, redefined-outer-name
def connect(client, userdata, flags, rc):
    # This function will be called when the client is connected
    # successfully to the broker.
    print('Connected to MQTT Broker!')
    print('Flags: {0}\n RC: {1}'.format(flags, rc))

def disconnect(client, userdata, rc):
    # This method is called when the client disconnects
    # from the broker.
    print('Disconnected from MQTT Broker!')

def subscribe(client, userdata, topic, granted_qos):
    # This method is called when the client subscribes to a new feed.
    print('Subscribed to {0} with QOS level {1}'.format(topic, granted_qos))

def unsubscribe(client, userdata, topic, pid):
    # This method is called when the client unsubscribes from a feed.
    print('Unsubscribed from {0} with PID {1}'.format(topic, pid))

def publish(client, userdata, topic, pid):
    # This method is called when the client publishes data to a feed.
    print('Published to {0} with PID {1}'.format(topic, pid))

# Connect to WiFi
wifi.connect()

# Set up a MiniMQTT Client
client =  MQTT(socket,
               broker = secrets['broker'],
               username = secrets['user'],
               password = secrets['pass'],
               network_manager = wifi)

# Connect callback handlers to client
client.on_connect = connect
client.on_disconnect = disconnect
client.on_subscribe = subscribe
client.on_unsubscribe = unsubscribe
client.on_publish = publish

print('Attempting to connect to %s'%client.broker)
client.connect()

print('Subscribing to %s'%mqtt_topic)
client.subscribe(mqtt_topic)

print('Publishing to %s'%mqtt_topic)
client.publish(mqtt_topic, 'Hello Broker!')

print('Unsubscribing from %s'%mqtt_topic)
client.unsubscribe(mqtt_topic)

print('Disconnecting from %s'%client.broker)
client.disconnect()