I’ve got working code to upload to AdafruitIO, and working code to read PMS2.5 data in seperate instances. I also have code that in theory should work but exhibits a conflict on pin D11. My REPL output as follows :
code.py output:
Traceback (most recent call last):
File "code.py", line 34, in <module>
ValueError: D11 in use
My python code is as follows to upload to AdafruitIO.
# Example of using the Adafruit IO CircuitPython MQTT client
# to subscribe to an Adafruit IO feed and publish random data
# to be received by the feed.
#
# Example by Tony DiCola for Adafruit Industries
# Modified by Brent Rubell for Adafruit Industries, 2019
import time
from random import randint
from pimoroni_pms5003 import PMS5003
import board
import busio
from digitalio import DigitalInOut
from adafruit_esp32spi import adafruit_esp32spi
from adafruit_esp32spi import adafruit_esp32spi_wifimanager
import adafruit_esp32spi.adafruit_esp32spi_socket as socket
import neopixel
from adafruit_io.adafruit_io import IO_MQTT
import adafruit_minimqtt as MQTT
pms5003 = PMS5003()
### 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.D13)
esp32_ready = DigitalInOut(board.D11)
esp32_reset = DigitalInOut(board.D12)
# 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)
# Define callback functions which will be called when certain events happen.
# pylint: disable=unused-argument
def connected(client):
# Connected function will be called when the client is connected to Adafruit IO.
# This is a good place to subscribe to feed changes. The client parameter
# passed to this function is the Adafruit IO MQTT client so you can make
# calls against it easily.
print("Connected to Adafruit IO! Listening for DemoFeed changes...")
# Subscribe to changes on a feed named DemoFeed.
client.subscribe("DemoFeed")
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))
# pylint: disable=unused-argument
def disconnected(client):
# Disconnected function will be called when the client disconnects.
print("Disconnected from Adafruit IO!")
# pylint: disable=unused-argument
def message(client, feed_id, payload):
# Message function will be called when a subscribed feed has a new value.
# The feed_id parameter identifies the feed, and the payload parameter has
# the new value.
print("Feed {0} received new value: {1}".format(feed_id, payload))
# Connect to WiFi
print("Connecting to WiFi...")
wifi.connect()
print("Connected!")
# Initialize MQTT interface with the esp interface
MQTT.set_socket(socket, esp)
# Initialize a new MQTT Client object
mqtt_client = MQTT.MQTT(
broker="https://io.adafruit.com",
username=secrets["aio_user"],
password=secrets["aio_key"],
)
# Initialize an Adafruit IO MQTT Client
io = IO_MQTT(mqtt_client)
# Connect the callback methods defined above to Adafruit IO
io.on_connect = connected
io.on_disconnect = disconnected
io.on_subscribe = subscribe
io.on_unsubscribe = unsubscribe
io.on_message = message
# Connect to Adafruit IO
print("Connecting to Adafruit IO...")
io.connect()
# Below is an example of manually publishing a new value to Adafruit IO.
last = 0
print("Publishing a new message every 10 seconds...")
while True:
reading = pms5003.read()
pm2 = reading.data[1]
# Explicitly pump the message loop.
io.loop()
# Send a new message every 10 seconds.
if (time.monotonic() - last) >= 10:
# value = randint(0, 100)
print("Publishing {0} to DemoFeed.".format(pm2))
io.publish("DemoFeed", pm2)
last = time.monotonic()
The issue is that esp32_ready conflicts with the pms5003 libraries pin 11 assignation by the look of it. Is there a way to resolve in software ? Thanks in advance.