Introduction

We can use a keyestudio Touch Key USB shield and a keyestudio Uno R3 to simulate a keyboard. The input method of touch key USB shield is touch, using dual contacts touch switch, to lead the touch terminal and the ground terminal connected to the two electrodes touch. When human touch the two pole, because of the body resistance, a touch electrode between the two current flows, by detecting this current size of the touch event can be detected.

Specification

1. Automatic identification in XP and win7 system, no need for driver;

2. Can connect 6 shielded cables;

3. Shielded layer connect to VCC (+5V)

4. Can adjust the value in TouchSensitivity to adjust the sensitivity