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Project #044: Air Gestures using CapSense Proximity | Cypress Semiconductor

Project #044: Air Gestures using CapSense Proximity

In today's project, we demonstrate how to use CapSense (capacitive sensing) to implement proximity sensors with air-gesture support (ala Minority Report).

Capacitive proximity sensing is an approach used to sense the presence of nearby persons without having to touch the actual capacitive sensor. This is done by implementing a highly sensitive capacitive sensor. A common issue with increased sensitivity is the amount of noise induced in the signal, but Cypress's CapSense features SmartSense Auto-Tuning, an alogorithm that constantly monitors the capacitive sensors and auto calibrates them for best and robust performance, thereby negating such noise issues.

In this project, the BLE Pioneer Kit is coupled with the Cypress Proximity Shield (CY8CKIT-024). You can still implement this project using the BLE Pioneer Kit only, but that would only support gestures on a single axis (wheras the Proximity Shield will allow you to test gestures in both the X and Y-axis). The project implements a Bluetooth Smart HID Keyboard that supports "Left" and "Right" arrow keys once connected to your Bluetooth 4.0 enabled PC or tablet/phone. Moving your fingers across the board from left-to-right triggers a "Right" arrow key, and moving right-to-left triggers the "Left" arrow key. 

You can download this PSoC Creator project and try out the air-gestures yourself!

GitHub link: https://github.com/cypresssemiconductorco/PSoC-4-BLE/tree/master/100_Projects_in_100_Days/Day044_Proximity_Gestures

   

Comments

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