A Raspberry Pi–powered IoT system that calls a designated phone number when a car’s interior temperature becomes dangerously high—helping protect pets and children from heat-related emergencies.

Heat Aware monitors a vehicle’s cabin temperature with a digital sensor connected to a Raspberry Pi.
When the temperature exceeds a configurable threshold, the system:

• Places an automated phone call (and optional SMS) to the registered caregiver
• Logs the event and reading in MongoDB for analysis and history

• Real-time temperature sensing via Raspberry Pi GPIO
• Automated phone-call alerts using the Twilio Voice API
• Configurable temperature threshold and contact numbers
• MongoDB logging for historical temperature and alert data
• Remote configuration and updates

• Raspberry Pi 4 Model B (or other Pi with GPIO and internet)
• Digital temperature sensor (e.g., DS18B20 or DHT22)
• Breadboard & jumper wires
• Internet connection (Ethernet or Wi-Fi)

• Backend: Node.js + Express
• Database: MongoDB (Atlas or self-hosted)
• Sensor Interface: onoff or rpi-dht-sensor Node packages
• Voice Calls: Twilio Voice API

1. Set up Raspberry Pi OS and enable SSH.
2. Clone the repository

   git clone https://github.com/yourusername/heat-aware.git
   cd heat-aware