Atmel QT3 Xplained Pro User Manual
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
Table of Contents
Preface............................................................................................................................ 1
1. Introduction................................................................................................................3
1.1. Features....................................................................................................................................... 3
1.2. Kit Overview................................................................................................................................. 3
2. Getting Started...........................................................................................................4
2.1. Xplained Pro Quick Start.............................................................................................................. 4
2.2. Design Documentation and Relevant Links................................................................................. 4
3. Xplained Pro.............................................................................................................. 5
3.1. Hardware Identification System....................................................................................................5
3.2. Xplained Pro Headers and Connectors........................................................................................5
3.2.1. Xplained Pro Standard Extension Header..................................................................... 5
4. Hardware Users Guide.............................................................................................. 7
4.1. Headers and Connectors..............................................................................................................7
4.1.1. QT3 Xplained Pro Extension Headers...........................................................................7
4.2. Peripherals................................................................................................................................... 8
4.2.1. LEDs.............................................................................................................................. 8
4.2.2. 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
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1. Introduction
1.1. Features
• 3x4 Mutual Capacitance QTouch® keypad matrix
• 17 LEDs
– One LED for each key
– Two LEDs for logo
– Three status LEDs
• Xplained Pro hardware identification system
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.
Figure 1-1 QT3 Xplained Pro Extension Board
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2. Getting Started
2.1. Xplained Pro Quick Start
Three steps to start exploring the Atmel Xplained Pro platform:
1. Download Atmel Studio.
2. Launch Atmel Studio.
3. Connect QT3 Xplained Pro to an Xplained Pro MCU board and connect a USB cable to the DEBUG
USB port on the Xplained Pro MCU board.
When the Atmel QT3 Xplained Pro is connected to your computer for the first time, the operating system
will perform a driver software installation. The driver file supports both 32- and 64-bit versions of
Microsoft® Windows® XP, Windows Vista®, 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. The kit landing page in Atmel Studio also has
the option to launch Atmel Software Framework (ASF) example applications for the kit. The target device
is programmed and debugged by the on-board Embedded Debugger and therefore no external
programmer or debugger tool is needed.
2.2. Design Documentation and Relevant Links
The following list contains links to the most relevant documents and software for QT3 Xplained Pro:
• Xplained Pro products - Atmel Xplained Pro is a series of small-sized and easy-to-use evaluation
kits for Atmel microcontrollers and other Atmel products. It consists of a series of low cost MCU
boards for evaluation and demonstration of features and capabilities of different MCU families.
• Atmel Studio - Free Atmel IDE for development of C/C++ and assembler code for Atmel
microcontrollers.
• EDBG User Guide - User guide containing more information about the on-board Embedded
Debugger.
• Atmel QTouch Library - QTouch Library for Atmel AVR® and ARM® - based microcontrollers.
• Atmel QTouch Composer - Tool for developing capacitive buttons, sliders, and wheels
applications.
• Atmel Data Visualizer - Atmel Data Visualizer is a program used for processing and visualizing
data. Data Visualizer can receive data from various sources such as the Embedded Debugger Data
Gateway Interface found on Xplained Pro boards, and COM ports.
• Design Documentation - Package containing CAD source, schematics, BOM, assembly drawings,
3D plots, layer plots etc.
• Hardware Users Guide in PDF format - PDF version of this User Guide.
• QT3 Xplained Pro in the Atmel store - Atmel Store link.
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3. Xplained Pro
Xplained Pro is an evaluation platform that provides the full Atmel microcontroller experience. The
platform consists of a series of Microcontroller (MCU) boards and extension boards which are integrated
with Atmel Studio, have Atmel Software Framework (ASF) drivers and demo code, support data
streaming, and more. Xplained Pro MCU boards support a wide range of Xplained Pro extension boards
which are connected through a set of standardized headers and connectors. Each extension board has
an identification (ID) chip to uniquely identify which boards are connected to an Xplained Pro MCU board.
This information is used to present relevant user guides, application notes, datasheets, and example
code through Atmel Studio.
3.1. Hardware Identification System
All Xplained Pro compatible extension boards have an Atmel ATSHA204 CryptoAuthentication™ chip
mounted. This chip contains information that identifies the extension with its name and some extra data.
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. Table 3-1 Xplained Pro ID Chip Content on page 5
shows the data fields stored in the ID chip with example content.
Table 3-1 Xplained Pro ID Chip Content
Data field Data type Example content
Manufacturer ASCII string Atmel'\0'
Product Name ASCII string Segment LCD1 Xplained Pro'\0'
Product Revision ASCII string 02'\0'
Product Serial Number ASCII string 1774020200000010’\0’
Minimum Voltage [mV] uint16_t 3000
Maximum Voltage [mV] uint16_t 3600
Maximum Current [mA] uint16_t 30
3.2. Xplained Pro Headers and Connectors
3.2.1. Xplained Pro Standard Extension Header
All Xplained Pro kits have one or more dual row, 20-pin, 100mil extension header. Xplained Pro MCU
boards have male headers, while Xplained Pro extensions have their female counterparts. Note that all
pins are not always connected. All connected pins follow the defined pin-out description in Table 3-2
Xplained Pro Standard Extension Header on page 6.
The extension headers can be used to connect a variety of Xplained Pro extensions to Xplained Pro MCU
boards or to access the pins of the target MCU on Xplained Pro MCU boards directly.
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