QT2100.h

00001 
00002 /*
00003 Copyright (c) 2015 John Magyar
00004 
00005 Permission is hereby granted, free of charge, to any person obtaining a copy
00006 of this software and associated documentation files (the "Software"), to deal
00007 in the Software without restriction, including without limitation the rights
00008 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00009 copies of the Software, and to permit persons to whom the Software is
00010 furnished to do so, subject to the following conditions:
00011 
00012 The above copyright notice and this permission notice shall be included in
00013 all copies or substantial portions of the Software.
00014 
00015 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00016 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00017 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00018 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00019 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00020 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00021 THE SOFTWARE.
00022 */
00023 
00024 #ifndef QT2100_H
00025 #define QT2100_H
00026 
00027 #include "mbed.h"
00028 
00029 /*
00030 
00031 Header file for the Atmel QT2100 Capacative Touch sensor device Mbed library.
00032 
00033 The QT2100 is a capacitive touch controller device with 10 configurable QTouch channels,
00034 supporting up to seven touch buttons, and either a single slider (or wheel).
00035 
00036 Datasheet: http://www.atmel.com/images/at42qt2100_e_level0%2013ww04.pdf
00037 
00038 */
00039 
00040 class QT2100
00041 {
00042 public:
00043     QT2100(PinName mosi,
00044            PinName miso,
00045            PinName sck,
00046            PinName cs,
00047            PinName tx,
00048            PinName rx);
00049     ~QT2100();
00050 
00051 public:
00052     void init();
00053     void terminalDisplay();
00054     void xfer3bytes(int byte0, int byte1, int byte2);
00055     void verifyChannels();
00056     void devId();
00057     int8_t keys();
00058     int8_t slider();
00059     int8_t wheel();
00060 
00061 private:
00062     SPI        _spi;
00063     DigitalOut _cs;
00064     Serial     _pc;
00065 };
00066 
00067 #endif // QT2100_H