micro:bit / microbit-button-events

A simple example of how to use the buttons on the micro:bit with the DAL. This is a one-way translation of the microbit-samples repository on GitHub. Please don't try to push changes here, instead push them to the source repo at https://github.com/lancaster-university/microbit-samples

Dependencies:   microbit

main.cpp@0:31595cd96b54, 2016-07-13 (annotated)

Committer:
LancasterUniversity
Date:
Wed Jul 13 15:47:27 2016 +0100
Revision:
0:31595cd96b54
Update to git: v2.0.0-rc4-5-g115d5a8

Who changed what in which revision?

UserRevisionLine numberNew contents of line
LancasterUniversity 0:31595cd96b54 1 /*
LancasterUniversity 0:31595cd96b54 2 The MIT License (MIT)
LancasterUniversity 0:31595cd96b54 3
LancasterUniversity 0:31595cd96b54 4 Copyright (c) 2016 British Broadcasting Corporation.
LancasterUniversity 0:31595cd96b54 5 This software is provided by Lancaster University by arrangement with the BBC.
LancasterUniversity 0:31595cd96b54 6
LancasterUniversity 0:31595cd96b54 7 Permission is hereby granted, free of charge, to any person obtaining a
LancasterUniversity 0:31595cd96b54 8 copy of this software and associated documentation files (the "Software"),
LancasterUniversity 0:31595cd96b54 9 to deal in the Software without restriction, including without limitation
LancasterUniversity 0:31595cd96b54 10 the rights to use, copy, modify, merge, publish, distribute, sublicense,
LancasterUniversity 0:31595cd96b54 11 and/or sell copies of the Software, and to permit persons to whom the
LancasterUniversity 0:31595cd96b54 12 Software is furnished to do so, subject to the following conditions:
LancasterUniversity 0:31595cd96b54 13
LancasterUniversity 0:31595cd96b54 14 The above copyright notice and this permission notice shall be included in
LancasterUniversity 0:31595cd96b54 15 all copies or substantial portions of the Software.
LancasterUniversity 0:31595cd96b54 16
LancasterUniversity 0:31595cd96b54 17 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
LancasterUniversity 0:31595cd96b54 18 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
LancasterUniversity 0:31595cd96b54 19 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
LancasterUniversity 0:31595cd96b54 20 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LancasterUniversity 0:31595cd96b54 21 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
LancasterUniversity 0:31595cd96b54 22 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
LancasterUniversity 0:31595cd96b54 23 DEALINGS IN THE SOFTWARE.
LancasterUniversity 0:31595cd96b54 24 */
LancasterUniversity 0:31595cd96b54 25
LancasterUniversity 0:31595cd96b54 26 #include "MicroBit.h"
LancasterUniversity 0:31595cd96b54 27
LancasterUniversity 0:31595cd96b54 28 MicroBit uBit;
LancasterUniversity 0:31595cd96b54 29
LancasterUniversity 0:31595cd96b54 30 //
LancasterUniversity 0:31595cd96b54 31 // Print details of all events received to the serial port.
LancasterUniversity 0:31595cd96b54 32 // Default settings are 115200 baud, 8N1 over the USB interface.
LancasterUniversity 0:31595cd96b54 33 //
LancasterUniversity 0:31595cd96b54 34 void onButton(MicroBitEvent e)
LancasterUniversity 0:31595cd96b54 35 {
LancasterUniversity 0:31595cd96b54 36 if (e.source == MICROBIT_ID_BUTTON_A)
LancasterUniversity 0:31595cd96b54 37 uBit.serial.printf("BUTTON A: ");
LancasterUniversity 0:31595cd96b54 38
LancasterUniversity 0:31595cd96b54 39 if (e.source == MICROBIT_ID_BUTTON_B)
LancasterUniversity 0:31595cd96b54 40 uBit.serial.printf("BUTTON B: ");
LancasterUniversity 0:31595cd96b54 41
LancasterUniversity 0:31595cd96b54 42 if (e.source == MICROBIT_ID_BUTTON_AB)
LancasterUniversity 0:31595cd96b54 43 uBit.serial.printf("BUTTON A+B: ");
LancasterUniversity 0:31595cd96b54 44
LancasterUniversity 0:31595cd96b54 45 if (e.source == MICROBIT_ID_IO_P0)
LancasterUniversity 0:31595cd96b54 46 uBit.serial.printf("TOUCH P0: ");
LancasterUniversity 0:31595cd96b54 47
LancasterUniversity 0:31595cd96b54 48 if (e.source == MICROBIT_ID_IO_P1)
LancasterUniversity 0:31595cd96b54 49 uBit.serial.printf("TOUCH P1: ");
LancasterUniversity 0:31595cd96b54 50
LancasterUniversity 0:31595cd96b54 51 if (e.source == MICROBIT_ID_IO_P2)
LancasterUniversity 0:31595cd96b54 52 uBit.serial.printf("TOUCH P2: ");
LancasterUniversity 0:31595cd96b54 53
LancasterUniversity 0:31595cd96b54 54 if (e.value == MICROBIT_BUTTON_EVT_DOWN)
LancasterUniversity 0:31595cd96b54 55 uBit.serial.printf("DOWN");
LancasterUniversity 0:31595cd96b54 56
LancasterUniversity 0:31595cd96b54 57 if (e.value == MICROBIT_BUTTON_EVT_UP)
LancasterUniversity 0:31595cd96b54 58 uBit.serial.printf("UP");
LancasterUniversity 0:31595cd96b54 59
LancasterUniversity 0:31595cd96b54 60 if (e.value == MICROBIT_BUTTON_EVT_CLICK)
LancasterUniversity 0:31595cd96b54 61 uBit.serial.printf("CLICK");
LancasterUniversity 0:31595cd96b54 62
LancasterUniversity 0:31595cd96b54 63 if (e.value == MICROBIT_BUTTON_EVT_LONG_CLICK)
LancasterUniversity 0:31595cd96b54 64 uBit.serial.printf("LONG_CLICK");
LancasterUniversity 0:31595cd96b54 65
LancasterUniversity 0:31595cd96b54 66 if (e.value == MICROBIT_BUTTON_EVT_HOLD)
LancasterUniversity 0:31595cd96b54 67 uBit.serial.printf("HOLD");
LancasterUniversity 0:31595cd96b54 68
LancasterUniversity 0:31595cd96b54 69 if (e.value == MICROBIT_BUTTON_EVT_DOUBLE_CLICK)
LancasterUniversity 0:31595cd96b54 70 uBit.serial.printf("DOUBLE_CLICK");
LancasterUniversity 0:31595cd96b54 71
LancasterUniversity 0:31595cd96b54 72 uBit.serial.printf("\n");
LancasterUniversity 0:31595cd96b54 73 }
LancasterUniversity 0:31595cd96b54 74
LancasterUniversity 0:31595cd96b54 75
LancasterUniversity 0:31595cd96b54 76 int main()
LancasterUniversity 0:31595cd96b54 77 {
LancasterUniversity 0:31595cd96b54 78 // Initialise the micro:bit runtime.
LancasterUniversity 0:31595cd96b54 79 uBit.init();
LancasterUniversity 0:31595cd96b54 80
LancasterUniversity 0:31595cd96b54 81 // Register to receive events when any buttons are clicked, including the A+B virtual button (both buttons at once).
LancasterUniversity 0:31595cd96b54 82 uBit.messageBus.listen(MICROBIT_ID_BUTTON_A, MICROBIT_EVT_ANY, onButton);
LancasterUniversity 0:31595cd96b54 83 uBit.messageBus.listen(MICROBIT_ID_BUTTON_B, MICROBIT_EVT_ANY, onButton);
LancasterUniversity 0:31595cd96b54 84 uBit.messageBus.listen(MICROBIT_ID_BUTTON_AB, MICROBIT_EVT_ANY, onButton);
LancasterUniversity 0:31595cd96b54 85
LancasterUniversity 0:31595cd96b54 86 // Also register for touch events on P0, P1 and P2.
LancasterUniversity 0:31595cd96b54 87 uBit.messageBus.listen(MICROBIT_ID_IO_P0, MICROBIT_EVT_ANY, onButton);
LancasterUniversity 0:31595cd96b54 88 uBit.messageBus.listen(MICROBIT_ID_IO_P1, MICROBIT_EVT_ANY, onButton);
LancasterUniversity 0:31595cd96b54 89 uBit.messageBus.listen(MICROBIT_ID_IO_P2, MICROBIT_EVT_ANY, onButton);
LancasterUniversity 0:31595cd96b54 90
LancasterUniversity 0:31595cd96b54 91 // Put the P0, P1 and P2 pins into touch sense mode.
LancasterUniversity 0:31595cd96b54 92 uBit.io.P0.isTouched();
LancasterUniversity 0:31595cd96b54 93 uBit.io.P1.isTouched();
LancasterUniversity 0:31595cd96b54 94 uBit.io.P2.isTouched();
LancasterUniversity 0:31595cd96b54 95
LancasterUniversity 0:31595cd96b54 96 // We're done, so just enter a power efficient sleep while we wait for an event.
LancasterUniversity 0:31595cd96b54 97 while (1)
LancasterUniversity 0:31595cd96b54 98 uBit.sleep(10000);
LancasterUniversity 0:31595cd96b54 99 }
LancasterUniversity 0:31595cd96b54 100