Smart Home Control

 

While voice control is convenient, so too is controlling your smart home devices via your smart phone.

The Home Control on QCA402x project does just that using a Qualcomm QCA4020 SoC to control a smart bulb, smart lock, and smoke detector via a mobile app over Bluetooth Low Energy.

The project includes a home automation application written in C that runs on the QCA4020. A smart lock (servo motor) is wired to the QCA4020 and receives PWM signals from the application to lock or unlock the door. A smoke sensor is also wired to the QCA4020, while a thread in the application polls the sensor every 30 seconds to determine if smoke is detected. The smart light bulb is connected wirelessly to the QCA4020 over Bluetooth Low Energy.

This project also includes an Android GUI application that runs on a smart phone to control the smart light bulb and lock. The application sends the corresponding commands to the QCA4020 over Bluetooth Low Energy as the user makes their selections.

This project can be a great foundation for controlling the smart devices in your home while learning about Bluetooth Low Energy.