ButtonEvents.cpp

00001 /*
00002 The MIT License (MIT)
00003 
00004 Copyright (c) 2016 British Broadcasting Corporation.
00005 This software is provided by Lancaster University by arrangement with the BBC.
00006 
00007 Permission is hereby granted, free of charge, to any person obtaining a
00008 copy of this software and associated documentation files (the "Software"),
00009 to deal in the Software without restriction, including without limitation
00010 the rights to use, copy, modify, merge, publish, distribute, sublicense,
00011 and/or sell copies of the Software, and to permit persons to whom the
00012 Software is furnished to do so, subject to the following conditions:
00013 
00014 The above copyright notice and this permission notice shall be included in
00015 all copies or substantial portions of the Software.
00016 
00017 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00018 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00019 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
00020 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00021 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
00022 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
00023 DEALINGS IN THE SOFTWARE.
00024 */
00025 
00026 #include "MicroBit.h"
00027 #include "MicroBitSamples.h"
00028 
00029 #ifdef MICROBIT_SAMPLE_BUTTON_EVENTS
00030 
00031 MicroBit uBit;
00032 
00033 //
00034 // Print details of all events received to the serial port.
00035 // Default settings are 115200 baud, 8N1 over the USB interface.
00036 //
00037 void onButton(MicroBitEvent e)
00038 {
00039     if (e.source == MICROBIT_ID_BUTTON_A)
00040         uBit.serial.printf("BUTTON A: ");
00041 
00042     if (e.source == MICROBIT_ID_BUTTON_B)
00043         uBit.serial.printf("BUTTON B: ");
00044 
00045     if (e.source == MICROBIT_ID_BUTTON_AB)
00046         uBit.serial.printf("BUTTON A+B: ");
00047 
00048     if (e.source == MICROBIT_ID_IO_P0)
00049         uBit.serial.printf("TOUCH P0: ");
00050 
00051     if (e.source == MICROBIT_ID_IO_P1)
00052         uBit.serial.printf("TOUCH P1: ");
00053 
00054     if (e.source == MICROBIT_ID_IO_P2)
00055         uBit.serial.printf("TOUCH P2: ");
00056 
00057     if (e.value == MICROBIT_BUTTON_EVT_DOWN)
00058         uBit.serial.printf("DOWN");
00059 
00060     if (e.value == MICROBIT_BUTTON_EVT_UP)
00061         uBit.serial.printf("UP");
00062 
00063     if (e.value == MICROBIT_BUTTON_EVT_CLICK)
00064         uBit.serial.printf("CLICK");
00065 
00066     if (e.value == MICROBIT_BUTTON_EVT_LONG_CLICK)
00067         uBit.serial.printf("LONG_CLICK");
00068 
00069     if (e.value == MICROBIT_BUTTON_EVT_HOLD)
00070         uBit.serial.printf("HOLD");
00071 
00072     if (e.value == MICROBIT_BUTTON_EVT_DOUBLE_CLICK)
00073         uBit.serial.printf("DOUBLE_CLICK");
00074 
00075     uBit.serial.printf("\n");
00076 }
00077 
00078 
00079 int main()
00080 {
00081     // Initialise the micro:bit runtime.
00082     uBit.init();
00083 
00084     // Register to receive events when any buttons are clicked, including the A+B virtual button (both buttons at once).
00085     uBit.messageBus.listen(MICROBIT_ID_BUTTON_A, MICROBIT_EVT_ANY, onButton);
00086     uBit.messageBus.listen(MICROBIT_ID_BUTTON_B, MICROBIT_EVT_ANY, onButton);
00087     uBit.messageBus.listen(MICROBIT_ID_BUTTON_AB, MICROBIT_EVT_ANY, onButton);
00088 
00089     // Also register for touch events on P0, P1 and P2.
00090     uBit.messageBus.listen(MICROBIT_ID_IO_P0, MICROBIT_EVT_ANY, onButton);
00091     uBit.messageBus.listen(MICROBIT_ID_IO_P1, MICROBIT_EVT_ANY, onButton);
00092     uBit.messageBus.listen(MICROBIT_ID_IO_P2, MICROBIT_EVT_ANY, onButton);
00093 
00094     // Put the P0, P1 and P2 pins into touch sense mode.
00095     uBit.io.P0.isTouched();
00096     uBit.io.P1.isTouched();
00097     uBit.io.P2.isTouched();
00098 
00099     // We're done, so just enter a power efficient sleep while we wait for an event.
00100     while (1)
00101         uBit.sleep(10000);
00102 }
00103 
00104 #endif