# SPDX-FileCopyrightText: 2023 Liz Clark for Adafruit Industries
#
# SPDX-License-Identifier: MIT
import os
import time
import ipaddress
import wifi
import socketpool
import busio
import board
import microcontroller
import displayio
import terminalio
from digitalio import DigitalInOut, Direction
from adafruit_httpserver import Server, Request, Response, POST
# onboard LED setup
led = DigitalInOut(board.LED)
led.direction = Direction.OUTPUT
led.value = False
print("Connected to WiFi")
pool = socketpool.SocketPool(wifi.radio)
server = Server(pool, "/static", debug=False)
# variables for HTML
# font for HTML
font_family = "monospace"
# the HTML script
# setup as an f string
# this way, can insert string variables from code.py directly
# of note, use {{ and }} if something from html *actually* needs to be in brackets
# i.e. CSS style formatting
def webpage():
html = f"""
Pico W HTTP Server
Pico W HTTP Server
This is a Pico W running an HTTP server with CircuitPython.
Control the LED on the Pico W with these buttons:
"""
return html
# route default static IP
@server.route("/")
def base(request: Request): # pylint: disable=unused-argument
# serve the HTML f string
# with content type text/html
return Response(request, f"{webpage()}", content_type='text/html')
# if a button is pressed on the site
@server.route("/", POST)
def buttonpress(request: Request):
# get the raw text
raw_text = request.raw_request.decode("utf8")
# print(raw_text)
# if the led on button was pressed
if "ON" in raw_text:
# turn on the onboard LED
led.value = True
print("on")
# if the led off button was pressed
if "OFF" in raw_text:
# turn the onboard LED off
led.value = False
print("off")
# respond
return Response(request, f"{webpage()}", content_type='text/html')
print("starting server..")
# startup the server
try:
server.start(str(wifi.radio.ipv4_address))
print("Listening on http://%s:%d" % (wifi.radio.ipv4_address, server.port))
# if the server fails to begin, restart the pico w
except OSError:
time.sleep(5)
print("restarting..")
microcontroller.reset()
ping_address = ipaddress.ip_address("8.8.4.4")
next_ping = time.monotonic()
while True:
# every 30 seconds ping server to verify connection
if next_ping < time.monotonic():
if wifi.radio.ping(ping_address) is None:
print("lost connection")
else:
print("connected")
next_ping = time.monotonic() + 30
# poll the server for incoming/outgoing requests
server.poll()