User Manual

3DTouchPad USER’S GUIDE
 2014 Microchip Technology Inc. DS40001763B-page 13
Chapter 4. Hardware
4.1 INTRODUCTION
The 3DTouchPad consists of a single four-layer PCB enclosed by a plastic housing.
The mini USB port provides connectivity to a USB port of a PC. Three LEDs indicate
the operating modes: 2D, 3D and Debug mode.
4.2 HARDWARE SETUP
The 3DTouchPad PCB contains the 2D touch pad surrounded by the electrodes for 3D
gesture recognition. The assembly is placed on the bottom of the PCB. Figure 4-1 and
Figure 4-2 show the assembly as well as the electrode structures.
FIGURE 4-1: PCB TOP VIEW
3D North
Electrode
3D East
Electrode
3D South
Electrode
3D West
Electrode
2D Touch
Electrodes