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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

Using iOS to place files onto a CircuitPython [CP] device has been possible for several years: https://blog.adafruit.com/2019/09/19/program-circuitpython-devices-with-iphone-ios-13/ https://learn.adafruit.com/use-circuitpython-devices-with-iphone-ipad/copy-edit-paste

However, iOS doesn't support USB CDC, so there is no REPL or serial capability.

Goal:

A "traveling light" configuration for setting up and using CircuitPython Web Workflow without a large computer. Basic ingredients would be an iPhone, one or two small CP microcontrollers (QT Py ESP32-S2 for example, but perhaps including a device without native-USB, like ESP32-C3 or ESP32), and assorted accessories.

	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 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 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"

	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 time
	import wifi
	import ipaddress
	import socketpool
	import mdns
	from secrets import secrets

	MDNSFINDTIMEOUT = 5

	pool = socketpool.SocketPool(wifi.radio)

	import time
	import board
	import busio
	from digitalio import DigitalInOut
	import adafruit_esp32spi.adafruit_esp32spi_socket as socket
	from adafruit_esp32spi import adafruit_esp32spi

	from secrets import secrets

	# initial read only (typically headers)

	import wifi
	import socketpool
	import ssl
	import ipaddress
	from secrets import secrets

	HOST = "example.com"
	PATH = "/"