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Atmel QTouch
QT3 Xplained Pro
USER GUIDE
Preface
®
The Atmel
QT3 Xplained Pro is an extension board, which enables the
evaluation of a capacitive touch 12 key numpad in mutual capacitance
configuration. The board is designed to use the Peripheral Touch Controller
(PTC) in Atmel microcontrollers. The board shows how easy it is to design a
capacitive touch solution for the PTC without the need for any external
components. The kit includes one board with a 3 by 4 touch key matrix and a
4 by 4 LED matrix for a visual feedback of the touch.
Atmel-42404A-QT3-Xplained-Pro_User Guide-08/2015
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Summary of Contents for Atmel QT3 Xplained Pro
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Page 1: Preface
12 key numpad in mutual capacitance configuration. The board is designed to use the Peripheral Touch Controller (PTC) in Atmel microcontrollers. The board shows how easy it is to design a capacitive touch solution for the PTC without the need for any external components. -
Page 2: Table Of Contents
QTouch Buttons......................10 5. Hardware Revision History and Known Issues............11 5.1. Identifying Product ID and Revision....................11 5.2. Revision 2........................... 11 6. Document Revision History..................12 7. Evaluation Board/kit Important Notice..............13 Atmel QT3 Xplained Pro [USER GUIDE] Atmel-42404A-QT3-Xplained-Pro_User Guide-08/2015... -
Page 3: Introduction
1.2. Kit Overview The Atmel QT3 Xplained Pro extension board is designed specifically for Xplained Pro MCU boards featuring a microcontroller with a built-in peripheral touch controller. The extension board can be used to explore the touch functions on the PTC module in mutual capacitance mode. -
Page 4: Getting Started
, Windows 7, and Windows 8. Once the Xplained Pro MCU board is powered the green power LED will be lit and Atmel Studio will auto detect which Xplained Pro MCU- and extension board(s) are connected. Atmel Studio will present relevant information like datasheets and kit documentation. -
Page 5: Xplained Pro
When an Xplained Pro extension is connected to an Xplained Pro MCU board the information is read and sent to Atmel Studio. The Atmel Kits extension, installed with Atmel Studio, will give relevant information, code examples, and links to relevant documents. - Page 6 SPI_MISO Master in slave out line of serial peripheral interface. Always implemented, bus type. SPI_SCK Clock for serial peripheral interface. Always implemented, bus type. Ground Power for extension board Atmel QT3 Xplained Pro [USER GUIDE] Atmel-42404A-QT3-Xplained-Pro_User Guide-08/2015...
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Page 7: Hardware Users Guide
EXT1 and EXT2 in silkscreen. These headers make it possible to connect the board to an Xplained Pro MCU board with an MCU featuring a PTC module. The pin-out definition for the extension headers can be seen in Table 4-1 QT3 Xplained Pro Extension Header EXT1 on page 7 and Table 4-2 QT3 Xplained Pro Extension Header EXT2 on page 8. -
Page 8: Peripherals
LEDs There are 17 white LEDs arranged in a 4x4 matrix on the QT3 Xplained Pro extension board which can be used to visualize a touch in the QTouch sensor. All LEDs on the boards must be driven by the I/O of the target controller on an MCU board. - Page 9 Figure 4-2 LED Driving Waveform COL1 COL2 COL3 COL4 COL1:XX COL2:XX COL3:XX COL4:XX COL1:XX ROW1 COL1:XX COL2:XX COL3:XX COL4:XX COL1:XX ROW2 COL1:XX COL2:XX COL3:XX COL4:XX COL1:XX ROW3 COL1:XX COL2:XX COL3:XX COL4:XX COL1:XX ROW4 Atmel QT3 Xplained Pro [USER GUIDE] Atmel-42404A-QT3-Xplained-Pro_User Guide-08/2015...
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Page 10: Qtouch Buttons
4.2.2. QTouch Buttons QT3 Xplained Pro has one 3x4 mutual capacitance touch button sensor array, which requires seven touch lines for the 12 keys in the numberic keypad. The Y-lines are only available on EXT1 on the kit, while the X-lines are available on both header. This makes the touch buttons compatible with MCU kits without the EXT2 header. -
Page 11: Hardware Revision History And Known Issues
Atmel Studio or by looking at the sticker on the bottom side of the PCB. By connecting an Xplained Pro MCU board to a computer with Atmel Studio running, an information window will pop up. The first six digits of the serial number, which is listed under kit details, contain the product identifier and revision. -
Page 12: Document Revision History
Document Revision History Doc. rev. Date Comment 42404A 08/2015 Initial document release. Atmel QT3 Xplained Pro [USER GUIDE] Atmel-42404A-QT3-Xplained-Pro_User Guide-08/2015... -
Page 13: Evaluation Board/Kit Important Notice
(WEEE), FCC, CE or UL (except as may be otherwise noted on the board/kit). Atmel supplied this board/kit "AS IS," without any warranties, with all faults, at the buyer's and further users' sole risk. The user assumes all responsibility and liability for proper and safe handling of the goods. - Page 14 DISCLAIMER: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN THE ATMEL TERMS AND...
- Page 15 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Microchip ATQT3-XPRO...
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