Somatic Controlled Switches Using Relaxing and Grabbing Fingers

Somatic controlled switches using relaxing and grabbing fingers have been implemented by the Leap Motion detections. The system included color circles that appeared in virtual reality, a Leap Motion sensor module, an Arduino UNO controller module, a solid state relay module, color bulbs, and an alternating current power source. The system can control any AC or DC electrical devices, but not only bulbs in this study. Some flashes and errors occurred, therefore, the 20-ms time delay and 100 μF bypass capacitors were inserted in the program and the I/O pins of the Arduino, respectively. After 100 times of the combination of time delay and bypass capacitors, the results show that the use of 100 μF bypass capacitors without time delay performed the least error (less than 5%). Consequently, the further applications of the switch system will facilitate the operating interface between VR and the physical world.