Page modem: reset hardware GPIO 16 + alerte mode configuration + reset au boot

- Bouton Reset Hardware (GPIO 16) avec verification ATI apres redemarrage
- Bandeau d'alerte rouge quand mode configuration actif (transmission desactivee)
- Reset automatique de modem_config_mode a 0 au boot (SARA/reboot/start.py)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

SARA/reboot/hardware_reboot.py

@@ -0,0 +1,72 @@
+'''
+  ____    _    ____      _
+ / ___|  / \  |  _ \    / \
+ \___ \ / _ \ | |_) |  / _ \
+  ___) / ___ \|  _ <  / ___ \
+ |____/_/   \_\_| \_\/_/   \_\
+
+sudo /usr/bin/python3 /var/www/nebuleair_pro_4g/SARA/reboot/hardware_reboot.py
+
+Hardware reboot of the SARA R5 modem using GPIO 16 (GND control via transistor).
+Cuts power for 3 seconds, then verifies modem is responsive with ATI command.
+Returns JSON result for web interface.
+'''
+
+import RPi.GPIO as GPIO
+import serial
+import time
+import json
+import sqlite3
+
+SARA_GND_GPIO = 16
+
+# Load baudrate from config
+conn = sqlite3.connect("/var/www/nebuleair_pro_4g/sqlite/sensors.db")
+cursor = conn.cursor()
+cursor.execute("SELECT value FROM config_table WHERE key='SaraR4_baudrate'")
+row = cursor.fetchone()
+baudrate = int(row[0]) if row else 115200
+conn.close()
+
+result = {
+    "reboot": False,
+    "modem_response": None,
+    "error": None
+}
+
+try:
+    # Step 1: Cut GND (modem off)
+    GPIO.setmode(GPIO.BCM)
+    GPIO.setup(SARA_GND_GPIO, GPIO.OUT)
+    GPIO.output(SARA_GND_GPIO, GPIO.LOW)
+    time.sleep(3)
+
+    # Step 2: Restore GND (modem on)
+    GPIO.output(SARA_GND_GPIO, GPIO.HIGH)
+    time.sleep(5)  # wait for modem boot
+
+    # Step 3: Check modem with ATI
+    ser = serial.Serial('/dev/ttyAMA2', baudrate=baudrate, timeout=3)
+    ser.reset_input_buffer()
+
+    for attempt in range(5):
+        ser.write(b'ATI\r')
+        time.sleep(1)
+        response = ser.read(ser.in_waiting or 1).decode('utf-8', errors='replace')
+        if "OK" in response:
+            result["reboot"] = True
+            result["modem_response"] = response.strip()
+            break
+        time.sleep(2)
+    else:
+        result["error"] = "Modem ne repond pas apres le redemarrage"
+
+    ser.close()
+
+except Exception as e:
+    result["error"] = str(e)
+
+finally:
+    GPIO.cleanup(SARA_GND_GPIO)
+
+print(json.dumps(result))

SARA/reboot/start.py

@@ -175,6 +175,11 @@ def read_complete_response(serial_connection, timeout=2, end_of_response_timeout
 try:
     print('<h3>Start reboot python script</h3>')
 
+    # Reset modem_config_mode at boot to prevent capteur from staying stuck in config mode
+    cursor.execute("UPDATE config_table SET value = '0' WHERE key = 'modem_config_mode'")
+    conn.commit()
+    print("modem_config_mode reset to 0 (boot safety)")
+
     #First we need to power on the module (if connected to mosfet via gpio16)
     GPIO.output(SARA_power_GPIO, GPIO.HIGH)
     time.sleep(5)