fix: Update configuration instructions to reflect changes in secrets management and file structure

README.md

@@ -146,56 +146,28 @@ RUN pin  →  Button  →  GND
 
 ### 4. Configuration
 
-**Create `secrets.py`** (copy from `secrets.example.py`):
+**Edit `config.json`** (created automatically on first boot, or edit manually):
 
-```python
-secrets = {
-    'ssid': 'YOUR_WIFI_NAME',
-    'password': 'YOUR_WIFI_PASSWORD',
-    'discord_webhook_url': 'https://discord.com/api/webhooks/...',
-    'discord_alert_webhook_url': 'https://discord.com/api/webhooks/...',
-}
-```
-
-**Sensor Configuration in `main.py`:**
-
-```python
-# Sensor configuration
-SENSOR_CONFIG = {
-    'inside': {
-        'pin': 10,
-        'label': 'Inside',
-        'alert_high': 80.0,
-        'alert_low': 70.0
-    },
-    'outside': {
-        'pin': 11,
-        'label': 'Outside',
-        'alert_high': 85.0,
-        'alert_low': 68.0
-    }
-}
-```
-
-**Default Climate Settings (auto-saved to config.json):**
-
-```python
-# Default config (created on first boot)
+```json
 {
-    "ac_target": 77.0,           # AC target temperature (°F)
-    "ac_swing": 1.0,             # AC turns on at 78°F, off at 76°F
-    "heater_target": 72.0,       # Heater target temperature (°F)
-    "heater_swing": 2.0,         # Heater turns on at 70°F, off at 74°F
-    "temp_hold_duration": 3600,  # Temporary hold lasts 1 hour (3600 seconds)
-    "schedule_enabled": true,    # Schedules active by default
-    "schedules": [               # 4 time-based schedules
+    "ssid": "YOUR_WIFI_NAME",
+    "password": "YOUR_WIFI_PASSWORD",
+    "discord_webhook_url": "https://discord.com/api/webhooks/...",
+    "discord_alert_webhook_url": "https://discord.com/api/webhooks/...",
+    "ac_target": 77.0,
+    "ac_swing": 1.0,
+    "heater_target": 72.0,
+    "heater_swing": 2.0,
+    "temp_hold_duration": 3600,
+    "schedule_enabled": true,
+    "schedules": [
         {
             "time": "06:00",
             "name": "Morning",
             "ac_target": 75.0,
             "heater_target": 72.0
-        },
-        # ... 3 more schedules
+        }
+        // ... 3 more schedules
     ]
 }
 ```
@@ -209,7 +181,6 @@ Upload all files to your Pico:
 ```text
 / 
 ├── main.py
-├── secrets.py
 ├── config.json              # Auto-generated on first boot
 └── scripts/
     ├── air_conditioning.py   # AC/Heater controller classes
@@ -228,9 +199,7 @@ The Pico will auto-start `main.py` on boot and be accessible at **<http://192.16
 ```text
 Auto-Garden/
 ├── main.py                      # Entry point, configuration, system initialization
-├── secrets.py                   # WiFi & Discord credentials (gitignored)
-├── secrets.example.py           # Template for secrets.py
-├── config.json                  # Persistent configuration (auto-generated)
+├── config.json                  # Persistent configuration and credentials (auto-generated)
 └── scripts/
     ├── air_conditioning.py      # AC & Heater controllers with short-cycle protection
     ├── discord_webhook.py       # Discord notification handling
@@ -447,14 +416,14 @@ report_interval=30     # Discord report frequency
 
 **WiFi not connecting:**
 
-- Verify SSID/password in `secrets.py`
+- Verify SSID/password in `config.json`
 - Check 2.4GHz WiFi (Pico W doesn't support 5GHz)
 - LED should be solid when connected
 - Check serial console for connection status
 
 **Discord messages not sending:**
 
-- Verify webhook URLs in `secrets.py`
+- Verify webhook URLs in `config.json`
 - Test webhooks with curl/Postman first
 - Check Pico has internet access (ping test)
 - Look for error messages in serial console

Scripts/discord_webhook.py

@@ -55,12 +55,12 @@ def send_discord_message(message, username="Auto Garden Bot", is_alert=False, de
         import gc  # type: ignore
         import time  # type: ignore
 
-        gc.collect(); gc.collect()
+        gc.collect()
 
         # Quick mem check before importing urequests/SSL
         mem = getattr(gc, "mem_free", lambda: None)()
         # Require larger headroom based on device testing (adjust if you re-test)
-        if mem is not None and mem < 105000:
+        if mem is not None and mem < 95000:
             print("Discord send skipped: ENOMEM ({} bytes free)".format(mem))
             return False
 
@@ -131,6 +131,6 @@ def send_discord_message(message, username="Auto Garden Bot", is_alert=False, de
             pass
         try:
             import gc # type: ignore
-            gc.collect(); gc.collect()
+            gc.collect()
         except:
             pass

Scripts/test_send.py

@@ -1,16 +0,0 @@
-import ujson
-# Reload discord module fresh and run the forced debug send once.
-try:
-    # ensure we use latest module on device
-    import sys
-    if "scripts.discord_webhook" in sys.modules:
-        del sys.modules["scripts.discord_webhook"]
-    import scripts.discord_webhook as d
-    # load config.json to populate webhook URL
-    with open("config.json", "r") as f:
-        cfg = ujson.load(f)
-    d.set_config(cfg)
-    print("Running debug_force_send() — may trigger ENOMEM, run once only")
-    d.debug_force_send("memory test")
-except Exception as e:
-    print("test_send error:", e)

Scripts/web_server.py

@@ -194,6 +194,8 @@ class TempWebServer:
                 print("ERROR: Failed to send response: {}".format(e))
             finally:
                 conn.close()
+                import gc  # type: ignore
+                gc.collect()
                 print("DEBUG: Client connection closed")
             # ===== END: Send response =====
 
@@ -266,7 +268,8 @@ class TempWebServer:
 
     def _handle_schedule_update(self, request, sensors, ac_monitor, heater_monitor, schedule_monitor, config):
         """Handle schedule form submission."""
-
+        import gc  # type: ignore
+        gc.collect()
         try:
             body = request.split('\r\n\r\n')[1] if '\r\n\r\n' in request else ''
             params = {}
@@ -280,6 +283,7 @@ class TempWebServer:
             mode_action = params.get('mode_action', '')
             
             if mode_action == 'resume':
+                gc.collect()
                 # Resume automatic scheduling
                 config['schedule_enabled'] = True
                 config['permanent_hold'] = False
@@ -313,6 +317,7 @@ class TempWebServer:
                 return redirect_response
             
             elif mode_action == 'temporary_hold':
+                gc.collect()
                 # Enter temporary hold (pause schedules temporarily)
                 config['schedule_enabled'] = False
                 config['permanent_hold'] = False
@@ -337,6 +342,7 @@ class TempWebServer:
                 return redirect_response
             
             elif mode_action == 'permanent_hold':
+                gc.collect()
                 # Enter permanent hold (disable schedules permanently)
                 config['schedule_enabled'] = False
                 config['permanent_hold'] = True
@@ -362,6 +368,7 @@ class TempWebServer:
                 return redirect_response
             
             elif mode_action == 'save_schedules':
+                gc.collect()
                 # Just fall through to schedule parsing below
                 pass
             # ===== END: Handle mode actions =====
@@ -371,12 +378,6 @@ class TempWebServer:
             prev_schedules = prev.get('schedules', [])
 
             # ===== START: Handle schedule configuration save =====
-            # DEBUG: Print what we received
-            print("DEBUG: Received POST body parameters:")
-            for key, value in params.items():
-                print("  {} = '{}'".format(key, value))
-            print("DEBUG: Total params received: {}".format(len(params)))
-            
             # Parse schedules (4 slots)
             schedules = []
             has_any_schedule_data = False
@@ -483,8 +484,6 @@ class TempWebServer:
                         'heater_target': heater_target
                     }
                     schedules.append(schedule)
-                    print("DEBUG: Parsed schedule {}: time='{}', name='{}', heater={}, ac={}".format(
-                        i, schedule_time, schedule_name, heater_target, ac_target))
             
             # Only update schedules if user submitted schedule form data
             if has_any_schedule_data:
@@ -538,7 +537,8 @@ class TempWebServer:
                 if heater_monitor:
                     heater_monitor.target_temp = config['heater_target']
                     heater_monitor.temp_swing = config['heater_swing']
-            
+            del params, prev_schedules, prev
+            gc.collect()
             # Send Discord notification
             try:
                 mode = "automatic" if config.get('schedule_enabled') else "hold"
@@ -549,7 +549,8 @@ class TempWebServer:
             except:
                 pass
             # ===== END: Handle schedule configuration save =====
-            
+            del schedules
+            gc.collect()
             # Redirect back to homepage with cache-busting headers
             redirect_response = 'HTTP/1.1 303 See Other\r\n'
             redirect_response += 'Location: /\r\n'
@@ -560,6 +561,7 @@ class TempWebServer:
             redirect_response += 'Expires: 0\r\n'
             redirect_response += '\r\n'
             print("DEBUG: Returning redirect to dashboard (with cache-busting)")
+            gc.collect()
             return redirect_response
             
         except Exception as e:
@@ -1343,6 +1345,8 @@ document.addEventListener('DOMContentLoaded', function() {{
     def _get_schedule_editor_page(self, sensors, ac_monitor, heater_monitor):
         """Generate schedule editor page (no auto-refresh, schedules only)."""
         # Get current temps (read if not cached)
+        import gc  # type: ignore
+        gc.collect()
         inside_temp = getattr(sensors.get('inside'), 'last_temp', None)
         if inside_temp is None:
             inside_temps = sensors['inside'].read_all_temps(unit='F')
@@ -1411,8 +1415,6 @@ document.addEventListener('DOMContentLoaded', function() {{
             schedule_inputs += "<input type=\"number\" name=\"schedule_" + str(i) + "_ac\" value=\"" + str(ac_value) + "\" step=\"0.5\" min=\"60\" max=\"90\" required oninput=\"schedSync(" + str(i) + ", 'ac')\" onchange=\"schedSync(" + str(i) + ", 'ac')\">\n"
             schedule_inputs += '</div>\n'
         
-            print("DEBUG:   HTML generated, length now: {} bytes".format(len(schedule_inputs)))
-        
         html = """
     <!DOCTYPE html>
     <html>
@@ -1616,7 +1618,8 @@ document.addEventListener('DOMContentLoaded', function() {{
     def _get_settings_page(self, sensors, ac_monitor, heater_monitor):
         """Generate advanced settings page."""
         config = self._load_config()
-        
+        import gc  # type: ignore
+        gc.collect()
         # Get temperatures (read if not cached)
         inside_temp = getattr(sensors.get('inside'), 'last_temp', None)
         if inside_temp is None:
@@ -1791,6 +1794,8 @@ document.addEventListener('DOMContentLoaded', function() {{
 
     def _handle_settings_update(self, request, sensors, ac_monitor, heater_monitor, schedule_monitor, config):
         """Handle advanced settings update."""
+        import gc  # type: ignore
+        gc.collect()
         try:
             body = request.split('\r\n\r\n')[1] if '\r\n\r\n' in request else ''
             params = {}
@@ -1857,4 +1862,5 @@ document.addEventListener('DOMContentLoaded', function() {{
         redirect_response += 'Content-Length: 0\r\n'
         redirect_response += 'Connection: close\r\n'
         redirect_response += '\r\n'
+        gc.collect()
         return redirect_response

main.py

@@ -201,7 +201,7 @@ if wifi and wifi.isconnected():
     gc.collect()
     ram_free = gc.mem_free()
     print(f"DEBUG: Free RAM before Discord send: {ram_free // 1024} KB")
-    mem_ok = ram_free > 105000
+    mem_ok = ram_free > 95000
     if mem_ok:
         ok = discord_webhook.send_discord_message("Pico W online at http://{}".format(ifconfig[0]), debug=False)
         if ok:
@@ -369,18 +369,21 @@ retry_ntp_attempts = 0
 max_ntp_attempts = 5  # Try up to 5 times after initial failure
 last_ntp_sync = time.time()  # Track when we last synced
 
-# ===== START: Main Loop =====
-# Main monitoring loop (runs forever until Ctrl+C)
-last_monitor_run = {
+try:
+    while True:
+        
+        # ===== START: Main Loop =====
+        # Main monitoring loop (runs forever until Ctrl+C)
+        last_monitor_run = {
             "wifi": 0,
             "schedule": 0,
             "ac": 0,
             "heater": 0,
             "inside_temp": 0,
             "outside_temp": 0,
-}
+        }
         
-while True:
+        while True:
             now = time.time()
         
             # WiFi monitor every 5 seconds (can be stateless)
@@ -460,4 +463,25 @@ while True:
         
             gc.collect()
             time.sleep(0.1)
-# ===== END: Main Loop =====
+        # ===== END: Main Loop =====
+except KeyboardInterrupt:
+    print("\n" + "="*50)
+    print("Shutting down gracefully...")
+    print("="*50)
+    try:
+        print("Turning off AC...")
+        ac_controller.turn_off()
+    except Exception as e:
+        print("AC shutdown error:", e)
+    try:
+        print("Turning off heater...")
+        heater_controller.turn_off()
+    except Exception as e:
+        print("Heater shutdown error:", e)
+    try:
+        print("Turning off LED...")
+        led.low()
+    except Exception as e:
+        print("LED shutdown error:", e)
+    print("Shutdown complete!")
+    print("="*50)