A custom IoT dashboard with Alexa voice control — no Blynk, no third-party lock-in. Direct MQTT + Sinric Pro communication between your browser, voice assistant, and ESP32 hardware.
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SENSOR TOPICS
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LATENCY ms
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DEPENDENCIES
// CAPABILITIES
MQTT over WebSocket
Real-time bidirectional communication with your ESP32 via HiveMQ Cloud broker.
Live Sensor Feed
Temperature, humidity, and ultrasonic distance streaming directly from hardware.
Presence Detection
Automatic light control when occupancy is detected. Zero manual intervention.
Instant Relay Control
Toggle lights and fan from anywhere. Commands execute in milliseconds.
Alexa Voice Control
Say "Alexa, turn on the light" — Sinric Pro bridges voice commands to your ESP32 relays.
No Third-Party Lock-in
Your data stays between your browser and your hardware. No Blynk, no middlemen.
// ARCHITECTURE
ALEXA
Voice Commands
SINRIC PRO
WebSocket Bridge
ESP32
Dual Control Plane
HIVEMQ CLOUD
MQTT Broker
BROWSER
Next.js + mqtt.js
// MQTT topic map
// GET STARTED
Edit lib/mqtt.ts with your HiveMQ credentials, flash the ESP32, and open the dashboard.