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Pico W Alarm System
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| from picozero import Speaker, pico_temp_sensor | |
| from time import sleep | |
| import network | |
| import socket | |
| import machine | |
| import uasyncio as asyncio | |
| from uasyncio import Event | |
| import time | |
| import secrets | |
| SSID = secrets.SSID | |
| PASSWORD = secrets.PASSWORD | |
| speaker = Speaker(20) | |
| play = False | |
| event = Event() | |
| def webpage(): | |
| global play | |
| state = "ON" if play else "OFF" | |
| temperature = pico_temp_sensor.temp | |
| return f"""<!DOCTYPE html><html><form action="/alarmon"><input type="submit" value="Alarm on"></form><form action="/alarmoff"><input type="submit" value="Alarm off"></form><p>Alarm is {state}</p><p>Temperature is {temperature}</p></body></html>""" | |
| async def beep(): | |
| global play, event | |
| while True: | |
| if play: | |
| speaker.play(262, 0.1, wait=False) | |
| await asyncio.sleep(0.2) | |
| speaker.play(262, 0.6, wait=False) | |
| await asyncio.sleep(1.6) | |
| else: | |
| await event.wait() | |
| def connect(): | |
| wlan = network.WLAN(network.STA_IF) | |
| wlan.active(True) | |
| wlan.config(pm = 0xa11140) | |
| wlan.ifconfig(('192.168.1.19', '255.255.255.0', '192.168.1.254', '0.0.0.0')) | |
| wlan.connect(SSID, PASSWORD) | |
| max_wait = 10 | |
| while max_wait > 0: | |
| if wlan.status() < 0 or wlan.status() >= 3: | |
| break | |
| max_wait -= 1 | |
| print("Waiting for connection...") | |
| time.sleep(1) | |
| if wlan.status() != 3: | |
| raise RuntimeError('network connection failed') | |
| else: | |
| ip = wlan.ifconfig()[0] | |
| print(f"Connected on {ip}") | |
| async def serve(reader, writer): | |
| global play, event | |
| request_line = await reader.readline() | |
| while await reader.readline() != b"\r\n": | |
| pass | |
| request = str(request_line) | |
| if request.find("/alarmon") == 6: | |
| play = True | |
| event.set() | |
| elif request.find("/alarmoff") == 6: | |
| play = False | |
| event.clear() | |
| response = webpage() | |
| content_length = len(response) | |
| writer.write("HTTP/1.1 200 OK\r\nContent-Length: ") | |
| writer.write(str(content_length)) | |
| writer.write("\r\nContent-type: text/html\r\nConnection: close\r\n\r\n") | |
| writer.write(response) | |
| await writer.drain() | |
| await writer.wait_closed() | |
| async def main(): | |
| connect() | |
| asyncio.create_task(asyncio.start_server(serve, "0.0.0.0", 80)) | |
| await beep() | |
| try: | |
| asyncio.run(main()) | |
| except Exception: | |
| machine.reset() |
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