Cypress CY8CKIT-040 PSoC 4000 Pioneer Kit, Руководство пользователя

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CY8CKIT-040 PSoC
®
4000 Pioneer Kit Guide, Doc. # 001-91316 Rev. *F 98
Code Examples
5.5.2.3 Hardware Connections
The example requires the CapSense Trackpad shield connection, as explained in Project: Cap-
Sense Touchpad with I2C Tuner on page 74 . The RGB LED and CMOD connections are hardwired
on the board. Optionally, a proximity loop can be connected, as shown in setup 1 in Figure 5-52 . To
use the firmware efficiently, the proximity loop can be formed as a loop around the Trackpad, as
shown in
Figure 5-53 . With setup 2, the LED turns on to show the previous color as the hand
approaches the Trackpad.
Note: For the proximity loop, the wire shipped with the kit (4 inches in length) can be wound to form
a loop of 1 to 2 inch diameter; the range obtained will be approximately the same as the loop diame-
ter for a fast approaching hand. To obtain a higher range, use a longer wire/bigger loop.
Figure 5-52. Setup 1