Add sensor fault simulation and health display

simulator/app.py

@@ -68,5 +68,19 @@ def toggle_ignition():
     })
 
 
+@app.route("/sensor/<name>/fault", methods=["POST"])
+def toggle_sensor_fault(name):
+    failed = esp32.toggle_sensor_fault(name)
+
+    if failed is None:
+        return jsonify({"success": False, "error": "Unknown sensor"}), 404
+
+    return jsonify({
+        "success": True,
+        "sensor": name,
+        "failed": failed
+    })
+
+
 if __name__ == "__main__":
     app.run(host="0.0.0.0", port=5000, debug=True)

simulator/esp32_sim.py

@@ -13,6 +13,7 @@ class ESP32Simulator:
 
         self.wifi_override_until = 0
         self.ignition_on = True
+        self.failed_sensors = set()
         self.soc = 82.0
         self.last_update = time.time()
 
@@ -43,18 +44,23 @@ class ESP32Simulator:
         starlink_on = self.relays["starlink"]
         wifi_override_active = time.time() < self.wifi_override_until
 
+        sensor_names = [
+            "fridge_zone_1",
+            "fridge_zone_2",
+            "rear_seat",
+            "outside"
+        ]
+
         temps = {
-            "fridge_zone_1": self.sensor(36, 2),
+            "fridge_zone_1": None if "fridge_zone_1" in self.failed_sensors else self.sensor(36, 2),
-            "fridge_zone_2": self.sensor(12, 3),
+            "fridge_zone_2": None if "fridge_zone_2" in self.failed_sensors else self.sensor(12, 3),
-            "rear_seat": self.sensor(78, 8),
+            "rear_seat": None if "rear_seat" in self.failed_sensors else self.sensor(78, 8),
-            "outside": self.sensor(88, 8)
+            "outside": None if "outside" in self.failed_sensors else self.sensor(88, 8)
         }
 
         sensor_health = {
-            "fridge_zone_1": True,
+            name: name not in self.failed_sensors
-            "fridge_zone_2": True,
+            for name in sensor_names
-            "rear_seat": True,
-            "outside": True
         }
 
         remaining_ah = round(self.soc, 1)
@@ -108,5 +114,23 @@ class ESP32Simulator:
         self.ignition_on = not self.ignition_on
         return self.ignition_on
 
+    def toggle_sensor_fault(self, name):
+        valid = {
+            "fridge_zone_1",
+            "fridge_zone_2",
+            "rear_seat",
+            "outside"
+        }
+
+        if name not in valid:
+            return None
+
+        if name in self.failed_sensors:
+            self.failed_sensors.remove(name)
+            return False
+
+        self.failed_sensors.add(name)
+        return True
+
 
 esp32 = ESP32Simulator()

simulator/static/style.css

@@ -292,3 +292,19 @@ nav button {
     font-size: 1rem;
     color: #555;
 }
+
+
+.sensor-fault {
+    border-color: #b00020;
+    background: #2a1010;
+}
+
+.sensor-fault p {
+    font-size: 1.5rem;
+    color: #ffdddd;
+}
+
+.sensor-fault small {
+    color: #ffaaaa;
+    font-weight: bold;
+}

simulator/templates/index.html

@@ -35,14 +35,14 @@
         </div>
 
         <div class="grid">
-            <div class="card"><h2>Fridge A</h2><p><span id="dashFridge1">--</span>°F</p></div>
+            <div class="card" id="cardFridge1"><h2>Fridge A</h2><p><span id="dashFridge1">--</span></p><small id="healthFridge1">OK</small></div>
-            <div class="card"><h2>Fridge B</h2><p><span id="dashFridge2">--</span>°F</p></div>
+            <div class="card" id="cardFridge2"><h2>Fridge B</h2><p><span id="dashFridge2">--</span></p><small id="healthFridge2">OK</small></div>
-            <div class="card kid-card">
+            <div class="card kid-card" id="cardRear">
                 <h2>👧 Kid Area</h2>
-                <p><span id="dashRear">--</span>°F</p>
+                <p><span id="dashRear">--</span></p>
                 <small id="kidStatus">Normal</small>
             </div>
-            <div class="card"><h2>Outside</h2><p><span id="dashOutside">--</span>°F</p></div>
+            <div class="card" id="cardOutside"><h2>Outside</h2><p><span id="dashOutside">--</span></p><small id="healthOutside">OK</small></div>
         </div>
 
         <div class="relay-row">
@@ -66,10 +66,10 @@
     <section id="temps" class="screen">
         <h2>Temperatures</h2>
         <div class="grid">
-            <div class="card"><h2>Fridge Zone 1</h2><p><span id="tempFridge1">--</span>°F</p></div>
+            <div class="card"><h2>Fridge Zone 1</h2><p><span id="tempFridge1">--</span></p></div>
-            <div class="card"><h2>Fridge Zone 2</h2><p><span id="tempFridge2">--</span>°F</p></div>
+            <div class="card"><h2>Fridge Zone 2</h2><p><span id="tempFridge2">--</span></p></div>
-            <div class="card"><h2>Rear Seat</h2><p><span id="tempRear">--</span>°F</p></div>
+            <div class="card"><h2>Rear Seat</h2><p><span id="tempRear">--</span></p></div>
-            <div class="card"><h2>Outside</h2><p><span id="tempOutside">--</span>°F</p></div>
+            <div class="card"><h2>Outside</h2><p><span id="tempOutside">--</span></p></div>
         </div>
     </section>
 
@@ -90,6 +90,14 @@
         <button onclick="enableWifi()">Enable WiFi 10 min</button>
         <button onclick="toggleIgnition()">Toggle Ignition</button>
 
+        <h2>Sensor Fault Simulation</h2>
+        <div class="settings-list">
+            <button onclick="toggleSensorFault('fridge_zone_1')">Toggle Fridge Zone 1 Fault</button>
+            <button onclick="toggleSensorFault('fridge_zone_2')">Toggle Fridge Zone 2 Fault</button>
+            <button onclick="toggleSensorFault('rear_seat')">Toggle Rear Seat Fault</button>
+            <button onclick="toggleSensorFault('outside')">Toggle Outside Fault</button>
+        </div>
+
         <h2>Alarm Settings</h2>
         <div class="settings-list">
             <label>
@@ -155,25 +163,50 @@ function onOff(value) {
     return value ? 'ON' : 'OFF';
 }
 
+function tempText(value) {
+    return value === null || value === undefined ? 'FAULT' : `${value}°F`;
+}
+
+function setSensorCard(cardId, healthId, healthy) {
+    const card = document.getElementById(cardId);
+    const health = document.getElementById(healthId);
+
+    if (!card || !health) return;
+
+    if (healthy) {
+        card.classList.remove('sensor-fault');
+        health.textContent = 'OK';
+    } else {
+        card.classList.add('sensor-fault');
+        health.textContent = 'SENSOR FAULT';
+    }
+}
+
 function checkAlarms(data) {
     const alarms = [];
     const warnings = [];
 
-    if (data.temps.rear_seat >= alarmConfig.rear_seat_critical) {
+    for (const [name, healthy] of Object.entries(data.sensor_health)) {
+        if (!healthy) {
+            warnings.push(`Sensor fault: ${name.replaceAll('_', ' ')}`);
+        }
+    }
+
+    if (data.sensor_health.rear_seat && data.temps.rear_seat >= alarmConfig.rear_seat_critical) {
         alarms.push({
             key: 'rear_seat_critical',
             title: 'REAR SEAT TEMP CRITICAL',
             message: `${data.temps.rear_seat}°F detected near car seat area`
         });
-    } else if (data.temps.rear_seat >= alarmConfig.rear_seat_warning) {
+    } else if (data.sensor_health.rear_seat && data.temps.rear_seat >= alarmConfig.rear_seat_warning) {
         warnings.push(`Rear seat temp high: ${data.temps.rear_seat}°F`);
     }
 
-    if (data.temps.fridge_zone_1 >= alarmConfig.fridge_zone_1_warm) {
+    if (data.sensor_health.fridge_zone_1 && data.temps.fridge_zone_1 >= alarmConfig.fridge_zone_1_warm) {
         warnings.push(`Fridge Zone 1 warm: ${data.temps.fridge_zone_1}°F`);
     }
 
-    if (data.temps.fridge_zone_2 >= alarmConfig.fridge_zone_2_warm) {
+    if (data.sensor_health.fridge_zone_2 && data.temps.fridge_zone_2 >= alarmConfig.fridge_zone_2_warm) {
         warnings.push(`Fridge Zone 2 warm: ${data.temps.fridge_zone_2}°F`);
     }
 
@@ -260,19 +293,24 @@ async function loadStatus() {
 
     document.getElementById('dashSoc').textContent = data.battery.soc;
     document.getElementById('dashRuntime').textContent = data.battery.runtime_hours;
-    document.getElementById('dashFridge1').textContent = data.temps.fridge_zone_1;
+    document.getElementById('dashFridge1').textContent = tempText(data.temps.fridge_zone_1);
-    document.getElementById('dashFridge2').textContent = data.temps.fridge_zone_2;
+    document.getElementById('dashFridge2').textContent = tempText(data.temps.fridge_zone_2);
-    document.getElementById('dashRear').textContent = data.temps.rear_seat;
+    document.getElementById('dashRear').textContent = tempText(data.temps.rear_seat);
+
+    setSensorCard('cardFridge1', 'healthFridge1', data.sensor_health.fridge_zone_1);
+    setSensorCard('cardFridge2', 'healthFridge2', data.sensor_health.fridge_zone_2);
+    setSensorCard('cardRear', 'kidStatus', data.sensor_health.rear_seat);
+    setSensorCard('cardOutside', 'healthOutside', data.sensor_health.outside);
 
     const kidStatus = document.getElementById('kidStatus');
-    if (data.temps.rear_seat >= alarmConfig.rear_seat_critical) {
+    if (data.sensor_health.rear_seat && data.temps.rear_seat >= alarmConfig.rear_seat_critical) {
         kidStatus.textContent = 'CRITICAL';
-    } else if (data.temps.rear_seat >= alarmConfig.rear_seat_warning) {
+    } else if (data.sensor_health.rear_seat && data.temps.rear_seat >= alarmConfig.rear_seat_warning) {
         kidStatus.textContent = 'Warning';
     } else {
         kidStatus.textContent = 'Normal';
     }
-    document.getElementById('dashOutside').textContent = data.temps.outside;
+    document.getElementById('dashOutside').textContent = tempText(data.temps.outside);
     document.getElementById('dashStarlink').textContent = `Starlink: ${onOff(data.relays.starlink)}`;
     document.getElementById('dashFridgeRelay').textContent = `Fridge: ${onOff(data.relays.fridge)}`;
 
@@ -283,10 +321,10 @@ async function loadStatus() {
     document.getElementById('batRuntime').textContent = data.battery.runtime_hours;
     document.getElementById('batTemp').textContent = data.battery.temperature_f;
 
-    document.getElementById('tempFridge1').textContent = data.temps.fridge_zone_1;
+    document.getElementById('tempFridge1').textContent = tempText(data.temps.fridge_zone_1);
-    document.getElementById('tempFridge2').textContent = data.temps.fridge_zone_2;
+    document.getElementById('tempFridge2').textContent = tempText(data.temps.fridge_zone_2);
-    document.getElementById('tempRear').textContent = data.temps.rear_seat;
+    document.getElementById('tempRear').textContent = tempText(data.temps.rear_seat);
-    document.getElementById('tempOutside').textContent = data.temps.outside;
+    document.getElementById('tempOutside').textContent = tempText(data.temps.outside);
 
     document.getElementById('starlinkBtn').textContent = `Starlink: ${onOff(data.relays.starlink)}`;
     document.getElementById('fridgeBtn').textContent = `Fridge: ${onOff(data.relays.fridge)}`;
@@ -347,6 +385,17 @@ async function toggleIgnition() {
     loadStatus();
 }
 
+async function toggleSensorFault(name) {
+    await fetch(`/sensor/${name}/fault`, {
+        method: 'POST',
+        headers: {'Content-Type': 'application/json'},
+        body: JSON.stringify({})
+    });
+
+    acknowledgedAlarms.clear();
+    loadStatus();
+}
+
 async function enableWifi() {
     await fetch('/network/wifi', {
         method: 'POST',