Back to Work
Project 02 / Hardware
Air Clicks.
Summary
A wearable that turns hand gestures into clicks, keystrokes, and cursor control; built for presenters and accessibility use cases.
Fig.01Air Clicks
The concept.
Air Clicks is a gesture-controlled wearable input device built around an ESP32 microcontroller and IMU sensor array. It translates hand movements in free space into precise digital inputs: mouse clicks, keyboard shortcuts, cursor movement, and custom macros.
The device was designed for two primary use cases: hands-free presentation control and accessible computer interaction for users with limited mobility.
How it works.
An inertial measurement unit tracks orientation and acceleration of the wearer's hand. A lightweight gesture recognition pipeline running on the ESP32 classifies movements in real-time and transmits the corresponding HID commands over Bluetooth Low Energy to any paired device.
MCUESP32
SensorsIMU (accelerometer + gyroscope)
OutputHID over BLE
LatencySub-50ms gesture recognition
LanguageC / C++ (Arduino framework)
Form FactorWrist-mounted wearable
Impact.
Air Clicks was the project that put the work on the map. It demonstrated that low-cost embedded hardware could deliver fluid, responsive gesture control without cloud processing or expensive sensor suites.