102 lines
3.5 KiB
Python
102 lines
3.5 KiB
Python
import time
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import adafruit_dht
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import board
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import RPi.GPIO as GPIO
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import http.server
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import threading
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import json
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sensor = adafruit_dht.DHT11(board.D6)
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LED_PIN = 21
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FAN_PIN = 22
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GPIO.setmode(GPIO.BCM)
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GPIO.setup(LED_PIN, GPIO.OUT)
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GPIO.setup(FAN_PIN, GPIO.OUT)
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sensor_data = {
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'tempc': 0.0,
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'tempf': 0.0,
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'humidity': 0.0,
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'led': False,
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'fan': False
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}
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def check_data():
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while True:
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try:
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temperatuur_C = sensor.temperature
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temperatuur_F = temperatuur_C * (9/5) + 32
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humidity = sensor.humidity
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sensor_data['tempc'] = temperatuur_C
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sensor_data['tempf'] = temperatuur_F
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sensor_data['humidity'] = humidity
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except RuntimeError as err:
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print(err.args[0])
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if temperatuur_C > 20:
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GPIO.output(LED_PIN, GPIO.HIGH)
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GPIO.output(FAN_PIN, GPIO.HIGH)
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sensor_data['led'] = True
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sensor_data['fan'] = True
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else:
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GPIO.output(LED_PIN, GPIO.LOW)
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GPIO.output(FAN_PIN, GPIO.LOW)
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sensor_data['led'] = False
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sensor_data['fan'] = False
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class handler_class(http.server.BaseHTTPRequestHandler):
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def do_GET (self):
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if self.path == '/':
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self.send_response(200)
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self.send_header('Content-type', 'text/html; charset=utf-8')
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self.end_headers()
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website = """
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<!DOCTYPE html>
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<html>
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<head>
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<title>IOT DHT11 sensor status</title>
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<meta charset="UTF-8">
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</head>
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<body>
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<h1>IOT DHT11 Sensor Status</h1>
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<p>Temp_C = <span id="tempc">--</span>C</p>
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<p>Temp_F = <span id="tempf">--</span>F</p>
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<p>humidity = <span id="humid">--</span>%</p>
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<p>LED = <span id="led">UIT</span></p>
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<p>FAN = <span id="fan">UIT</span></p>
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<script>
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setInterval(() => {
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fetch('/data')
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.then(res => res.json())
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.then(data => {
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document.getElementById('tempc').textContent = data.tempc.toFixed(1);
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document.getElementById('tempf').textContent = data.tempf.toFixed(1);
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document.getElementById('humid').textContent = data.humidity.toFixed(1);
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document.getElementById('led').textContent = data.led ? 'AAN' : 'UIT';
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document.getElementById('fan').textContent = data.fan ? 'AAN' : 'UIT';
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});
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}, 1000);
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</script>
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</body>
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</html>
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"""
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self.wfile.write(website.encode())
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elif self.path == '/data':
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self.send_response(200)
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self.send_header('Content-type', 'application/json')
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self.end_headers()
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self.wfile.write(json.dumps(sensor_data).encode())
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def web_server():
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web_binding = ('', 8000)
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server = http.server.HTTPServer(web_binding, handler_class)
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print ("server draait op port 8000")
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server.serve_forever()
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if __name__ == '__main__':
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threading.Thread(target=web_server, daemon=True).start()
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threading.Thread(target=check_data, daemon=True).start()
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while True:
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time.sleep(1) |