Add TempWebServer class for serving temperature data via a web interface

Scripts/heating.py

@@ -0,0 +1,68 @@
+from machine import Pin
+import time
+
+class HeaterController:
+    """Control heater via opto-coupler relay."""
+    def __init__(self, relay_pin=16, min_run_time=300, min_off_time=180):
+        """
+        relay_pin: GPIO pin connected to opto-coupler input
+        min_run_time: Minimum seconds heater must run before turning off (prevent short cycling)
+        min_off_time: Minimum seconds heater must be off before turning on (element protection)
+        """
+        self.relay = Pin(relay_pin, Pin.OUT)
+        self.relay.off()  # Start with heater off (relay normally open)
+        
+        self.min_run_time = min_run_time
+        self.min_off_time = min_off_time
+        
+        self.is_on = False
+        self.last_state_change = time.ticks_ms()
+    
+    def turn_on(self):
+        """Turn heater on if minimum off time has elapsed."""
+        if self.is_on:
+            return True  # Already on
+        
+        now = time.ticks_ms()
+        time_since_change = time.ticks_diff(now, self.last_state_change) / 1000
+        
+        if time_since_change < self.min_off_time:
+            remaining = int(self.min_off_time - time_since_change)
+            print(f"Heater cooldown: {remaining}s remaining before can turn on")
+            return False
+        
+        self.relay.on()
+        self.is_on = True
+        self.last_state_change = now
+        print("Heater turned ON")
+        return True
+    
+    def turn_off(self):
+        """Turn heater off if minimum run time has elapsed."""
+        if not self.is_on:
+            return True  # Already off
+        
+        now = time.ticks_ms()
+        time_since_change = time.ticks_diff(now, self.last_state_change) / 1000
+        
+        if time_since_change < self.min_run_time:
+            remaining = int(self.min_run_time - time_since_change)
+            print(f"Heater minimum runtime: {remaining}s remaining before can turn off")
+            return False
+        
+        self.relay.off()
+        self.is_on = False
+        self.last_state_change = now
+        print("Heater turned OFF")
+        return True
+    
+    def get_state(self):
+        """Return current heater state."""
+        return self.is_on
+    
+    def force_off(self):
+        """Emergency shut off (bypasses timers)."""
+        self.relay.off()
+        self.is_on = False
+        self.last_state_change = time.ticks_ms()
+        print("Heater FORCE OFF")

Scripts/monitors.py

@@ -142,6 +142,52 @@ class ACMonitor(Monitor):
         
         # Else: within temp_swing range, maintain current state
 
+class HeaterMonitor(Monitor):
+    """Monitor temperature and control heater automatically."""
+    def __init__(self, heater_controller, temp_sensor, target_temp=70.0, temp_swing=2.0, interval=30):
+        """
+        heater_controller: HeaterController instance
+        temp_sensor: TemperatureSensor instance (inside temp)
+        target_temp: Target temperature in °F
+        temp_swing: Temperature swing allowed (prevents rapid cycling)
+        interval: Seconds between checks
+        """
+        super().__init__(interval)
+        self.heater = heater_controller
+        self.sensor = temp_sensor
+        self.target_temp = target_temp
+        self.temp_swing = temp_swing
+        self.last_notified_state = None
+    
+    def run(self):
+        """Check temperature and control heater."""
+        temps = self.sensor.read_all_temps(unit='F')
+        if not temps:
+            return
+        
+        # Use first sensor reading (assuming single inside sensor)
+        current_temp = list(temps.values())[0]
+        
+        # Heating logic with temperature swing
+        # Turn ON if: temp < target - temp_swing
+        # Turn OFF if: temp > target + temp_swing
+        
+        if current_temp < (self.target_temp - self.temp_swing):
+            # Too cold, turn heater on
+            if self.heater.turn_on():
+                if not self.last_notified_state:
+                    send_discord_message(f"🔥 Heater turned ON - Current: {current_temp:.1f}°F, Target: {self.target_temp:.1f}°F")
+                    self.last_notified_state = True
+        
+        elif current_temp > (self.target_temp + self.temp_swing):
+            # Warm enough, turn heater off
+            if self.heater.turn_off():
+                if self.last_notified_state:
+                    send_discord_message(f"✅ Heater turned OFF - Current: {current_temp:.1f}°F, Target: {self.target_temp:.1f}°F")
+                    self.last_notified_state = False
+        
+        # Else: within temp_swing range, maintain current state
+
 class WiFiMonitor(Monitor):
     """Monitor WiFi connection and handle reconnection."""
     def __init__(self, wifi, led, interval=5, reconnect_cooldown=60):

Scripts/networking.py

@@ -2,36 +2,65 @@ import network
 import time
 from secrets import secrets
 
-RECONNECT_COOLDOWN_MS = 60000  # 60 seconds
-
-def connect_wifi(led=None, timeout=10):
-    """
-    Connect to WiFi using secrets['ssid'] / secrets['password'].
-    If `led` (machine.Pin) is provided, pulse it once on successful connect.
-    Returns the WLAN object or None on failure.
-    """
-    wifi = network.WLAN(network.STA_IF)
-    wifi.active(True)
-    
-    # print("Connecting to WiFi...", end="")
-    wifi.connect(secrets['ssid'], secrets['password'])
-    
-    # Wait for connection with timeout
-    max_wait = timeout
-    while max_wait > 0:
-        if wifi.status() < 0 or wifi.status() >= 3:
-            break
-        max_wait -= 1
-        # print(".", end="")
-        time.sleep(1)
+def connect_wifi(led=None):
+    """Connect to WiFi using credentials from secrets.py"""
+    try:
+        wlan = network.WLAN(network.STA_IF)
         
-    if wifi.isconnected():
-        # print("\nConnected! Network config:", wifi.ifconfig())
-        if led:
-            led.on()
+        # Deactivate first if already active (fixes EPERM error)
+        if wlan.active():
+            wlan.active(False)
             time.sleep(1)
-            led.off()
-        return wifi
-    else:
-        # print("\nConnection failed!")
-        return None
+        
+        wlan.active(True)
+        time.sleep(1)  # Give it time to initialize
+        
+    except OSError as e:
+        print(f"WiFi activation error: {e}")
+        print("Attempting reset...")
+        try:
+            # Force deinit and reinit
+            wlan.deinit()
+            time.sleep(2)
+            wlan = network.WLAN(network.STA_IF)
+            wlan.active(True)
+            time.sleep(1)
+        except Exception as e2:
+            print(f"WiFi reset failed: {e2}")
+            return None
+    
+    if not wlan.isconnected():
+        print('Connecting to WiFi...')
+        try:
+            wlan.connect(secrets['ssid'], secrets['password'])
+        except Exception as e:
+            print(f"Connection attempt failed: {e}")
+            return None
+        
+        # Wait for connection with timeout
+        max_wait = 20
+        while max_wait > 0:
+            if wlan.isconnected():
+                break
+            if led:
+                led.toggle()
+            time.sleep(0.5)
+            max_wait -= 1
+            print('.', end='')
+        
+        print()
+        
+        if not wlan.isconnected():
+            print('WiFi connection failed!')
+            if led:
+                led.off()
+            return None
+    
+    if led:
+        # Single pulse on successful connection
+        led.on()
+        time.sleep(0.5)
+        led.off()
+    
+    print('Connected to WiFi')
+    return wlan

Scripts/web_server.py

@@ -0,0 +1,188 @@
+import socket
+import time
+
+class TempWebServer:
+    """Simple web server for viewing temperatures."""
+    def __init__(self, port=80):
+        self.port = port
+        self.socket = None
+        self.sensors = {}
+    
+    def start(self):
+        """Start the web server (non-blocking)."""
+        try:
+            self.socket = socket.socket()
+            self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+            self.socket.bind(('0.0.0.0', self.port))
+            self.socket.listen(1)
+            self.socket.setblocking(False)  # Non-blocking mode
+            print(f"Web server started on port {self.port}")
+        except Exception as e:
+            print(f"Failed to start web server: {e}")
+    
+    def check_requests(self, sensors, ac_monitor=None, heater_monitor=None):
+        """Check for incoming requests (call in main loop)."""
+        if not self.socket:
+            return
+        
+        try:
+            conn, addr = self.socket.accept()
+            conn.settimeout(3.0)
+            request = conn.recv(1024).decode('utf-8')
+            
+            # Generate response
+            response = self._get_status_page(sensors, ac_monitor, heater_monitor)
+            
+            conn.send('HTTP/1.1 200 OK\r\n')
+            conn.send('Content-Type: text/html\r\n')
+            conn.send('Connection: close\r\n\r\n')
+            conn.sendall(response)
+            conn.close()
+        except OSError:
+            pass  # No connection, continue
+        except Exception as e:
+            print(f"Web server error: {e}")
+    
+    def _get_status_page(self, sensors, ac_monitor, heater_monitor):
+        """Generate HTML status page."""
+        # Get current temperatures
+        inside_temps = sensors['inside'].read_all_temps(unit='F')
+        outside_temps = sensors['outside'].read_all_temps(unit='F')
+        
+        inside_temp = list(inside_temps.values())[0] if inside_temps else "N/A"
+        outside_temp = list(outside_temps.values())[0] if outside_temps else "N/A"
+        
+        # Get AC/Heater status
+        ac_status = "ON" if ac_monitor and ac_monitor.ac.get_state() else "OFF"
+        heater_status = "ON" if heater_monitor and heater_monitor.heater.get_state() else "OFF"
+        
+        # Get current time
+        current_time = time.localtime()
+        time_str = f"{current_time[0]}-{current_time[1]:02d}-{current_time[2]:02d} {current_time[3]:02d}:{current_time[4]:02d}:{current_time[5]:02d}"
+        
+        html = """
+        <!DOCTYPE html>
+        <html>
+        <head>
+            <title>Auto Garden Status</title>
+            <meta name="viewport" content="width=device-width, initial-scale=1">
+            <meta http-equiv="refresh" content="10">
+            <style>
+                body {{
+                    font-family: Arial, sans-serif;
+                    max-width: 800px;
+                    margin: 0 auto;
+                    padding: 20px;
+                    background-color: #f5f5f5;
+                }}
+                h1 {{
+                    color: #2c3e50;
+                    text-align: center;
+                }}
+                .card {{
+                    background: white;
+                    border-radius: 8px;
+                    padding: 20px;
+                    margin: 10px 0;
+                    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+                }}
+                .temp-display {{
+                    font-size: 48px;
+                    font-weight: bold;
+                    text-align: center;
+                    margin: 20px 0;
+                }}
+                .inside {{ color: #e74c3c; }}
+                .outside {{ color: #3498db; }}
+                .label {{
+                    font-size: 18px;
+                    color: #7f8c8d;
+                    text-align: center;
+                    margin-bottom: 10px;
+                }}
+                .status {{
+                    display: flex;
+                    justify-content: space-around;
+                    margin-top: 20px;
+                }}
+                .status-item {{
+                    text-align: center;
+                }}
+                .status-indicator {{
+                    font-size: 24px;
+                    font-weight: bold;
+                    padding: 10px 20px;
+                    border-radius: 5px;
+                    display: inline-block;
+                    margin-top: 10px;
+                }}
+                .on {{
+                    background-color: #2ecc71;
+                    color: white;
+                }}
+                .off {{
+                    background-color: #95a5a6;
+                    color: white;
+                }}
+                .footer {{
+                    text-align: center;
+                    color: #7f8c8d;
+                    margin-top: 20px;
+                    font-size: 14px;
+                }}
+                .targets {{
+                    font-size: 14px;
+                    color: #7f8c8d;
+                    text-align: center;
+                    margin-top: 10px;
+                }}
+            </style>
+        </head>
+        <body>
+            <h1>🌱 Auto Garden Status</h1>
+            
+            <div class="card">
+                <div class="label">Inside Temperature</div>
+                <div class="temp-display inside">{inside_temp}°F</div>
+            </div>
+            
+            <div class="card">
+                <div class="label">Outside Temperature</div>
+                <div class="temp-display outside">{outside_temp}°F</div>
+            </div>
+            
+            <div class="card">
+                <div class="status">
+                    <div class="status-item">
+                        <div class="label">❄️ Air Conditioning</div>
+                        <div class="status-indicator {ac_class}">{ac_status}</div>
+                        <div class="targets">Target: {ac_target}°F ± {ac_swing}°F</div>
+                    </div>
+                    <div class="status-item">
+                        <div class="label">🔥 Heater</div>
+                        <div class="status-indicator {heater_class}">{heater_status}</div>
+                        <div class="targets">Target: {heater_target}°F ± {heater_swing}°F</div>
+                    </div>
+                </div>
+            </div>
+            
+            <div class="footer">
+                Last updated: {time}<br>
+                Auto-refresh every 10 seconds
+            </div>
+        </body>
+        </html>
+        """.format(
+            inside_temp=f"{inside_temp:.1f}" if isinstance(inside_temp, float) else inside_temp,
+            outside_temp=f"{outside_temp:.1f}" if isinstance(outside_temp, float) else outside_temp,
+            ac_status=ac_status,
+            ac_class="on" if ac_status == "ON" else "off",
+            heater_status=heater_status,
+            heater_class="on" if heater_status == "ON" else "off",
+            ac_target=ac_monitor.target_temp if ac_monitor else "N/A",
+            ac_swing=ac_monitor.temp_swing if ac_monitor else "N/A",
+            heater_target=heater_monitor.target_temp if heater_monitor else "N/A",
+            heater_swing=heater_monitor.temp_swing if heater_monitor else "N/A",
+            time=time_str
+        )
+        return html

main.py

@@ -1,21 +1,56 @@
 from machine import Pin
 import time
-from scripts.networking import connect_wifi
-from scripts.discord_webhook import send_discord_message
-from scripts.monitors import TemperatureMonitor, WiFiMonitor, ACMonitor, run_monitors
-from scripts.temperature_sensor import TemperatureSensor, get_configured_sensors
-from scripts.air_conditioning import ACController
+import network
 
 # Initialize pins (LED light onboard)
 led = Pin("LED", Pin.OUT)
 led.low()
 
+# Hard reset WiFi interface before connecting
+print("Initializing WiFi...")
+try:
+    wlan = network.WLAN(network.STA_IF)
+    wlan.deinit()
+    time.sleep(2)
+    print("WiFi interface reset complete")
+except Exception as e:
+    print(f"WiFi reset warning: {e}")
+
+# Import after WiFi reset
+from scripts.networking import connect_wifi
+from scripts.discord_webhook import send_discord_message
+from scripts.monitors import TemperatureMonitor, WiFiMonitor, ACMonitor, HeaterMonitor, run_monitors
+from scripts.temperature_sensor import TemperatureSensor
+from scripts.air_conditioning import ACController
+from scripts.heating import HeaterController
+from scripts.web_server import TempWebServer
+
 # Connect to WiFi
 wifi = connect_wifi(led)
 
-# Send startup message if connected
+# Print WiFi details
 if wifi and wifi.isconnected():
+    ifconfig = wifi.ifconfig()
+    print("\n" + "="*50)
+    print("WiFi Connected Successfully!")
+    print("="*50)
+    print(f"IP Address:     {ifconfig[0]}")
+    print(f"Subnet Mask:    {ifconfig[1]}")
+    print(f"Gateway:        {ifconfig[2]}")
+    print(f"DNS Server:     {ifconfig[3]}")
+    print(f"Web Interface:  http://{ifconfig[0]}")
+    print("="*50 + "\n")
+    
+    # Send startup message
     send_discord_message("Pico W online and connected ✅")
+else:
+    print("\n" + "="*50)
+    print("WiFi Connection Failed!")
+    print("="*50 + "\n")
+
+# Start web server
+web_server = TempWebServer(port=80)
+web_server.start()
 
 # Sensor configuration registry (moved from temperature_sensor.py)
 SENSOR_CONFIG = {
@@ -32,8 +67,9 @@ SENSOR_CONFIG = {
         'alert_low': 68.0
     }
 }
+
 # Initialize sensors based on configuration
-def get_configured_sensors():  # define the function here
+def get_configured_sensors():
     """Return dictionary of configured sensor instances."""
     sensors = {}
     for key, config in SENSOR_CONFIG.items():
@@ -41,20 +77,35 @@ def get_configured_sensors():  # define the function here
     return sensors
 
 # Get configured sensors
-sensors = get_configured_sensors()  # Call the function here
+sensors = get_configured_sensors()
 
 # AC Controller options
 ac_controller = ACController(
     relay_pin=15,
     min_run_time=30,   # min run time in seconds
     min_off_time=5     # min off time in seconds
-    )
+)
 
 ac_monitor = ACMonitor(
     ac_controller=ac_controller,
-    temp_sensor=sensors['inside'],  # <-- This is your inside temperature sensor
+    temp_sensor=sensors['inside'],
     target_temp=77.0,   # target temperature in Fahrenheit
-    temp_swing=1.0,      # temp swing target_temp-temp_swing to target_temp+temp_swing
+    temp_swing=1.0,     # temp swing target_temp-temp_swing to target_temp+temp_swing
+    interval=30         # check temp every x seconds
+)
+
+# Heater Controller options
+heater_controller = HeaterController(
+    relay_pin=16,
+    min_run_time=30,   # min run time in seconds
+    min_off_time=5     # min off time in seconds
+)
+
+heater_monitor = HeaterMonitor(
+    heater_controller=heater_controller,
+    temp_sensor=sensors['inside'],
+    target_temp=80.0,   # target temperature in Fahrenheit
+    temp_swing=2.0,     # temp swing
     interval=30         # check temp every x seconds
 )
 
@@ -62,6 +113,7 @@ ac_monitor = ACMonitor(
 monitors = [
     WiFiMonitor(wifi, led, interval=5, reconnect_cooldown=60), # Wifi monitor, Check WiFi every 5s
     ac_monitor, # AC monitor
+    heater_monitor, # Heater monitor
     TemperatureMonitor( # Inside temperature monitor
         sensor=sensors['inside'],
         label=SENSOR_CONFIG['inside']['label'],
@@ -84,7 +136,11 @@ monitors = [
     ),
 ]
 
+print("Starting monitoring loop...")
+print("Press Ctrl+C to stop\n")
+
 # Main monitoring loop
 while True:
     run_monitors(monitors)
+    web_server.check_requests(sensors, ac_monitor, heater_monitor)
     time.sleep(0.1)