Cypress CapSense CY3280-MB User manual

CY3280-MBR QUICK START GUIDE
CAPSENSE®MECHANICAL BUTTON REPLACEMENT (MBR)
• Turn off and turn on the kit by touching the
power button twice.
• Touch any button; the corresponding LED
will glow.
• Touch the same button again; the corresponding
LED toggles off.
• Repeat with different buttons.
• Insert the provided batteries into the battery
holder on the reverse of the kit.
• Keep the kit on a stable surface and touch the
power button*; the power LED will glow.
• Ensure SW1 is in the Toggle On position and
SW2 is in the Sleep Off position.
• Add parasitic capacitance to BTN2 by inserting
the provided 22 pF external capacitor to
connector J5, with the marking facing up.
• Turn off and turn on the kit by touching the
power button twice.
• Test BTN 2; SmartSenseTM Auto-tuning
compensates for the change in capacitance.
• Repeat with other external capacitors; BTN 2
works with up to 40 pF of parasitic capacitance.
Note* : The power button is set to be less responsive than the other buttons to prevent false starts of the kit.
Once the kit is powered on, the power button is more sensitive to enable easy power cycling.
• Remove the external capacitor.
• Place the 1 mm overlay over the buttons.
• Turn off and turn on the kit by touching the
power button twice.
• Test the buttons; SmartSense Auto-tuning
compensates for the change in
overlay thickness.
• Repeat with the 3 mm overlay.
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CY3280-MBR QUICK START GUIDE
• Power may be supplied in 3 ways: through the on-board battery supply, connector J2 or connector J5.
Recommended power through J2 is 2 V to 3.8 V.
• It is not recommended to connect power to connector J5 when the kit is powered from connector J2
or the battery.
• BTN1 and BTN2 are connected to pins 4 and 5 of connector J5 for SmartSense evaluation;
touching these pins may trigger false touches.
Pin 1 – SCANRATE/SLEEP
Pin 2 – XRES
Pin 3 – DELAY
Pin 4 – TOGGLE/FSS
Pin 5, 6 – GND
Pin 7 – GPO0
Pin 8 – GPO1
Pin 9 – GPO2
Pin 10 – GPO3
Pin 33 – ARST
Pin 35,36,39 – GND
Pin 41 – VDD
Pin 34,37,38,40,42 – NC
Pin 1 – VDD
Pin 2 – GND
Pin 3 – XRES
Pin 4 – Button Sensor BTN1
Pin 5 – Button Sensor BTN2
• *FSS stands for Flanking Sensor Suppression, a CapSense technique that ensures only the
rst button touched is registered.
• Power must be cycled whenever a switch setting is changed.
• For more information about the connector pins, switch features and potentiometers,
please refer the User Guide.
For the latest information about this Kit, and to download the User Guide, Kit Software and Hardware les,
visit: www.cypress.com/go/CY3280-MBR
SW1 Position
Both On ON ON
ON OFF
OFF ON
OFF OFF
Toggle On
FSS On
Both Off
Sleep Off Using pin 1 in connector J1, an external host
controller can enable the deep sleep mode.
Sleep On Deep sleep mode cannot be enabled by an
external host controller using pin 1 in connector J1.
ScanRate/Sleep input of CapSense® controller is
controlled by the SLEEP Potentiometer.
Toggle FSS* Feature
SW2 Position
Connector J2
Power Button
Buttons
and LEDs
SW2 (Sleep)
Connector J5
SW1
(FSS/Toggle)
Connector J1
Battery Holder
Potentiometers
© 2010-2015 Cypress Semiconductor Corporation. All rights reserved.
All trademarks or registered trademarks referenced herein are the properties of their
respective owners. Doc.#: 001-64773 Rev.*F
CAPSENSE®MECHANICAL BUTTON REPLACEMENT (MBR)
Connector J1 Connector J2 Connector J5