CY3280-MBR CapSense Express with SmartSense Auto-Tuning Kit Guide, Doc. # 001-64772 Rev. **
19
Kit Features
Figure 3-11. Kit with Delay Off Feature Disabled
3.6.2
Enable Delay Off Feature
The Delay Off pin is connected to a potentiometer and helps to change the resistor value to all sup-
ported values. This potentiometer is marked as DELAY on the kit. The kit should be held such that
'DELAY' text is readable. Turn the potentiometer to the extreme left.
Touch the power button once to turn off the power and ensure the power LED is turned off. Press the
power button again to turn on the power. This is because, the CapSense controller should be reset
every time the hardware strapping inputs change. The Delay Off feature is now enabled.
Figure 3-12. Delay Potentiometer Turned Extreme Left
3.6.3
Test CapSense Buttons with Delay Off Feature Enabled
Touch any CapSense button; the respective LED turns on. When the finger is released, the LED
turns off after some delay. Play with it; the delay depends on the value of the resistor connected to
the Delay Off input. Keep the potentiometer at different positions to see different delays. Ensure
power is toggled every time the position of the potentiometer is changed. Refer the
for more information on this feature.
Figure 3-13. Test Sequence for Delay Off Feature
1. Touch a button: LED turns on
2. Release button; LED turns off immediately
1. Touch a button; LED turns
on
2. Release the button; LED
remains on
3. LED turns off automatically
without any action after
2 seconds
Содержание CapSense Express CY3280-MBR
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