# 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 adafruit_display_text import label
import adafruit_displayio_ssd1306
import adafruit_imageload
from digitalio import DigitalInOut, Direction
from adafruit_httpserver import Server, Request, Response, POST
from adafruit_onewire.bus import OneWireBus
from adafruit_ds18x20 import DS18X20
# onboard LED setup
led = DigitalInOut(board.LED)
led.direction = Direction.OUTPUT
led.value = False
# pin used for party parrot animation
parrot_pin = DigitalInOut(board.GP10)
parrot_pin.direction = Direction.OUTPUT
parrot_pin.value = False
# one-wire bus for DS18B20
ow_bus = OneWireBus(board.GP6)
# scan for temp sensor
ds18 = DS18X20(ow_bus, ow_bus.scan()[0])
# function to convert celcius to fahrenheit
def c_to_f(temp):
temp_f = (temp * 9/5) + 32
return temp_f
# i2c display setup
displayio.release_displays()
oled_reset = board.GP9
# STEMMA I2C on picowbell
i2c = busio.I2C(board.GP5, board.GP4)
display_bus = displayio.I2CDisplay(i2c, device_address=0x3D, reset=oled_reset)
WIDTH = 128
HEIGHT = 64
offset_y = 5
display = adafruit_displayio_ssd1306.SSD1306(display_bus, width=WIDTH, height=HEIGHT)
# default display group
splash = displayio.Group()
display.show(splash)
# connect to network
print()
print("Connecting to WiFi")
connect_text = "Connecting..."
connect_text_area = label.Label(
terminalio.FONT, text=connect_text, color=0xFFFFFF, x=0, y=offset_y
)
splash.append(connect_text_area)
# set static IP address
ipv4 = ipaddress.IPv4Address("192.168.1.42")
netmask = ipaddress.IPv4Address("255.255.255.0")
gateway = ipaddress.IPv4Address("192.168.1.1")
wifi.radio.set_ipv4_address(ipv4=ipv4,netmask=netmask,gateway=gateway)
# connect to your SSID
wifi.radio.connect(os.getenv('CIRCUITPY_WIFI_SSID'), os.getenv('CIRCUITPY_WIFI_PASSWORD'))
print("Connected to WiFi")
pool = socketpool.SocketPool(wifi.radio)
server = Server(pool, "/static", debug=True)
# variables for HTML
# comment/uncomment desired temp unit
# temp_test = str(ds18.temperature)
# unit = "C"
temp_test = c_to_f(ds18.temperature)
unit = "F"
# 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.
The current ambient temperature near the Pico W is
{temp_test:.2f}°{unit}
Control the LED on the Pico W with these buttons:
Party?
"""
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
# if the led off button was pressed
if "OFF" in raw_text:
# turn the onboard LED off
led.value = False
# if the party button was pressed
if "party" in raw_text:
# toggle the parrot_pin value
parrot_pin.value = not parrot_pin.value
# reload site
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:80" % wifi.radio.ipv4_address)
# 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")
# text objects for screen
# connected to SSID text
connect_text_area.text = "Connected to:"
ssid_text = f"{os.getenv('CIRCUITPY_WIFI_SSID')}"
ssid_text_area = label.Label(
terminalio.FONT, text=ssid_text, color=0xFFFFFF, x=0, y=offset_y+15
)
splash.append(ssid_text_area)
# display ip address
ip_text = f"IP: {wifi.radio.ipv4_address}"
ip_text_area = label.Label(
terminalio.FONT, text=ip_text, color=0xFFFFFF, x=0, y=offset_y+30
)
splash.append(ip_text_area)
# display temp reading
temp_text = f"Temperature: {temp_test:.2f} F"
temp_text_area = label.Label(
terminalio.FONT, text=temp_text, color=0xFFFFFF, x=0, y=offset_y+45
)
splash.append(temp_text_area)
# party parrot display group
parrot_group = displayio.Group()
# load in party parrot bitmap
parrot_bit, parrot_pal = adafruit_imageload.load("/partyParrots64.bmp",
bitmap=displayio.Bitmap,
palette=displayio.Palette)
parrot_grid = displayio.TileGrid(parrot_bit, pixel_shader=parrot_pal,
width=1, height=1,
tile_height=64, tile_width=64,
default_tile=1,
x=32, y=0)
parrot_group.append(parrot_grid)
clock = time.monotonic() # time.monotonic() holder for server ping
parrot = False # parrot state
party = 0 # time.monotonic() holder for party parrot
p = 0 # index for tilegrid
while True:
try:
# every 30 seconds, ping server & update temp reading
if (clock + 30) < time.monotonic():
if wifi.radio.ping(ping_address) is None:
connect_text_area.text = "Disconnected!"
ssid_text_area.text = None
print("lost connection")
else:
connect_text_area.text = "Connected to:"
ssid_text_area.text = f"{os.getenv('CIRCUITPY_WIFI_SSID')}"
print("connected")
clock = time.monotonic()
# comment/uncomment for desired units
# temp_test = ds18.temperature
temp_test = c_to_f(ds18.temperature)
temp_text_area.text = f"Temperature: {temp_test:.2f} F"
#if parrot is True:
if parrot_pin.value is True:
# switch to party parrot display group
display.show(parrot_group)
if (party + 0.1) < time.monotonic():
# the party parrot animation cycles
parrot_grid[0] = p
# p is the tilegrid index location
p = (p + 1) % 10
party = time.monotonic()
# if it isn't a party
else:
# show default display with info
display.show(splash)
# poll the server for incoming/outgoing requests
server.poll()
# pylint: disable=broad-except
except Exception as e:
print(e)
continue