1st version with led driver

src/nenuscanner/routes/leds.py

@@ -2,16 +2,13 @@ from flask import Blueprint, render_template, request, send_file, jsonify, sessi
 import json
 import subprocess
 
+import gpiod
+
 from .. import camera as C
 from .. import leds,config
 
 blueprint = Blueprint('leds', __name__)
 
-# WARNING: This is a temporary global variable to hold the state of the GPIO LEDs.
-# This is necessary because the LED state must persist across multiple requests,
-# and Flask does not maintain state between requests.
-# A better solution would be to implement a proper state management system.
-
 def _get_gpio_leds():
     """Return a singleton leds controller stored in app.extensions."""
     app = current_app._get_current_object()
@@ -43,6 +40,21 @@ def _register_cleanup(state):
 # Routes for object management
 
 
+# Nom du chip GPIO (sur Raspberry Pi 5, généralement "gpiochip4")
+CHIP = "gpiochip4"
+LINE = 14  # Numéro BCM du GPIO (ici GPIO14)
+
+# Ouvrir le chip
+chip = gpiod.Chip(CHIP)
+
+# Demander l’accès à la ligne GPIO14 en sortie
+line = chip.get_line(LINE)
+line.request(consumer="Small Led 1", type =  gpiod.LINE_REQ_DIR_OUT)
+
+line.set_value(1)
+
+# Routes for object management
+
 @blueprint.route('/')
 def get():
     """
@@ -81,4 +93,7 @@ def set_led():
     except Exception as e:
         return jsonify({'status': 'error', 'error': str(e)}), 400
     
+
+    print(f"Commande reçue pour {led} : {state}")
+
     return jsonify({'status': 'ok', 'led': led, 'state': state})