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ledserver.py
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ledserver.py
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from http.server import BaseHTTPRequestHandler, HTTPServer
import json
from rpi_ws281x import PixelStrip, Color
# LED-Konfiguration
LED_COUNT = 16
LED_PIN = 18
LED_FREQ_HZ = 800000
LED_DMA = 10
LED_BRIGHTNESS = 255
LED_INVERT = False
LED_CHANNEL = 0
# LEDs initialisieren
strip = PixelStrip(
LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL
)
strip.begin()
class LEDControlRequestHandler(BaseHTTPRequestHandler):
def _send_response(self, status, message):
self.send_response(status)
self.send_header('Content-type', 'application/json')
self.end_headers()
response = {'message': message}
self.wfile.write(json.dumps(response).encode())
def do_POST(self):
if self.path == '/set_led':
content_length = int(self.headers['Content-Length'])
post_data = self.rfile.read(content_length).decode('utf-8')
post_data = json.loads(post_data)
led_index = post_data.get('led', 0)
color = post_data.get('color', {'r': 0, 'g': 0, 'b': 0})
r = color.get('r', 0)
g = color.get('g', 0)
b = color.get('b', 0)
strip.setPixelColor(led_index, Color(r, g, b))
strip.show()
self._send_response(200, f'LED {led_index} wurde aktualisiert')
else:
self._send_response(404, 'Not Found')
def run_server():
PORT = 8000
server = HTTPServer(("", PORT), LEDControlRequestHandler)
print(f"Server läuft auf Port {PORT}")
server.serve_forever()
if __name__ == "__main__":
run_server()