anecdata

In the configuration pictured below, multiple identically-configured Adafruit CircuitPython 8.0.0-beta.0 on 2022-08-18; Adafruit QT Py ESP32S2 with ESP32S2 are used to create a Redundant Array of mDNS http Servers. The devices could be physically together or scattered around, as long as they are on the same LAN. Once configured, no USB connection is necessary for operation.

Each is running CircuitPython 8 Web Workflow: https://docs.circuitpython.org/en/latest/docs/workflows.html#web

Web Workflow automatically connects to a Wi-Fi Access Point based on credentials in a /.env file in the root of the CIRCUITPY drive filesystem, and creates an HTTP Server (port can be changed with CIRCUITPY_WEB_API_PORT= in the /.env file; it's port 80 by default).

In code.py, run an HTTP Server using (for example): https://docs.circuitpython.org/projects/httpserver/en/latest/api.html Make sure that the ports are different between the Web Workflow HTTP Server and the code.py HTTP Server (e.g., set

	print(f"\nBOARD")
	import os
	print(f"Name: {os.uname().machine}")
	import microcontroller
	uid = ''.join('%02X' % _ for _ in microcontroller.cpu.uid)
	print(f"CPU UID: {uid}")
	import sys
	print(f"Platform: {sys.platform}")
	import board
	print(f"board_id: {board.board_id}")

	import wifi
	import socketpool
	import ssl
	import adafruit_requests

	# local
	from secrets import secrets

	URL = "https://jwst.nasa.gov/content/webbLaunch/flightCurrentState2.0.json?unique=1643741752388"

	import time
	import rtc
	import wifi
	import socketpool
	import adafruit_ntp
	from secrets import secrets

	pool = socketpool.SocketPool(wifi.radio)

	ntp = adafruit_ntp.NTP(pool, tz_offset=0)

	import time
	import supervisor
	import microcontroller
	import wifi
	import socketpool
	import adafruit_requests
	from secrets import secrets

	TEXT_URL = "http://wifitest.adafruit.com/testwifi/index.html"

	import time
	import machine
	import network
	import urequests as requests

	TEXT_URL = "http://wifitest.adafruit.com/testwifi/index.html"

	wlan = network.WLAN(network.STA_IF)
	wlan.active(True)
	wlan.connect("ssid", "passw0rd")

	import os
	import board
	import busio
	import digitalio
	import time

	import adafruit_wiznet5k.adafruit_wiznet5k
	from adafruit_wiznet5k.adafruit_wiznet5k import WIZNET5K
	import adafruit_wiznet5k.adafruit_wiznet5k_socket as wiznet5k_socket

	import os, time, wifi, socketpool
	from secrets import secrets

	SLEEP = 1

	pool = socketpool.SocketPool(wifi.radio)

	def connect():
	try:
	wifi.radio.connect(secrets['ssid'], secrets['password'])

	# SPDX-FileCopyrightText: 2023 anecdata
	#
	# SPDX-License-Identifier: MIT

	import time
	import traceback
	import asyncio
	import board
	import digitalio
	import wifi