BBC / microbit-samples

Samples of how to use the micro:bit DAL with mbed. This is a hg clone of the real git repo that can be found here: https://github.com/lancaster-university/microbit-samples

Dependencies:   microbit

Fork of microbit-samples by Lancaster University

source/LogicGates.cpp@7:6b26df2a055a, 2016-04-08 (annotated)

Committer:
finneyj
Date:
Fri Apr 08 18:04:40 2016 +0000
Revision:
7:6b26df2a055a
Parent:
2:5b2cd31ac474 
update of microbit repo to latest revision

Who changed what in which revision?

UserRevisionLine numberNew contents of line
LancasterUniversity 2:5b2cd31ac474 1 /*
LancasterUniversity 2:5b2cd31ac474 2 The MIT License (MIT)
LancasterUniversity 2:5b2cd31ac474 3
LancasterUniversity 2:5b2cd31ac474 4 Copyright (c) 2016 British Broadcasting Corporation.
LancasterUniversity 2:5b2cd31ac474 5 This software is provided by Lancaster University by arrangement with the BBC.
LancasterUniversity 2:5b2cd31ac474 6
LancasterUniversity 2:5b2cd31ac474 7 Permission is hereby granted, free of charge, to any person obtaining a
LancasterUniversity 2:5b2cd31ac474 8 copy of this software and associated documentation files (the "Software"),
LancasterUniversity 2:5b2cd31ac474 9 to deal in the Software without restriction, including without limitation
LancasterUniversity 2:5b2cd31ac474 10 the rights to use, copy, modify, merge, publish, distribute, sublicense,
LancasterUniversity 2:5b2cd31ac474 11 and/or sell copies of the Software, and to permit persons to whom the
LancasterUniversity 2:5b2cd31ac474 12 Software is furnished to do so, subject to the following conditions:
LancasterUniversity 2:5b2cd31ac474 13
LancasterUniversity 2:5b2cd31ac474 14 The above copyright notice and this permission notice shall be included in
LancasterUniversity 2:5b2cd31ac474 15 all copies or substantial portions of the Software.
LancasterUniversity 2:5b2cd31ac474 16
LancasterUniversity 2:5b2cd31ac474 17 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
LancasterUniversity 2:5b2cd31ac474 18 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
LancasterUniversity 2:5b2cd31ac474 19 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
LancasterUniversity 2:5b2cd31ac474 20 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LancasterUniversity 2:5b2cd31ac474 21 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
LancasterUniversity 2:5b2cd31ac474 22 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
LancasterUniversity 2:5b2cd31ac474 23 DEALINGS IN THE SOFTWARE.
LancasterUniversity 2:5b2cd31ac474 24 */
LancasterUniversity 2:5b2cd31ac474 25
LancasterUniversity 2:5b2cd31ac474 26 #include "MicroBit.h"
LancasterUniversity 2:5b2cd31ac474 27 #include "MicroBitSamples.h"
LancasterUniversity 2:5b2cd31ac474 28
LancasterUniversity 2:5b2cd31ac474 29 #ifdef MICROBIT_SAMPLE_LOGIC_GATES
LancasterUniversity 2:5b2cd31ac474 30
LancasterUniversity 2:5b2cd31ac474 31 #define LOGIC_MODE_NOT 1
LancasterUniversity 2:5b2cd31ac474 32 #define LOGIC_MODE_AND 2
LancasterUniversity 2:5b2cd31ac474 33 #define LOGIC_MODE_OR 3
LancasterUniversity 2:5b2cd31ac474 34 #define LOGIC_MODE_OUTPUT 4
LancasterUniversity 2:5b2cd31ac474 35
LancasterUniversity 2:5b2cd31ac474 36 #define LOGIC_MODE_MIN 1
LancasterUniversity 2:5b2cd31ac474 37 #define LOGIC_MODE_MAX 4
LancasterUniversity 2:5b2cd31ac474 38
LancasterUniversity 2:5b2cd31ac474 39 #define TOOL_SELECT_DELAY 1000
LancasterUniversity 2:5b2cd31ac474 40
LancasterUniversity 2:5b2cd31ac474 41 MicroBit uBit;
LancasterUniversity 2:5b2cd31ac474 42
LancasterUniversity 2:5b2cd31ac474 43 MicroBitImage NOT("\
LancasterUniversity 2:5b2cd31ac474 44 0 0 1 0 0\n\
LancasterUniversity 2:5b2cd31ac474 45 0 0 1 1 0\n\
LancasterUniversity 2:5b2cd31ac474 46 1 1 1 1 1\n\
LancasterUniversity 2:5b2cd31ac474 47 0 0 1 1 0\n\
LancasterUniversity 2:5b2cd31ac474 48 0 0 1 0 0\n");
LancasterUniversity 2:5b2cd31ac474 49
LancasterUniversity 2:5b2cd31ac474 50 MicroBitImage AND("\
LancasterUniversity 2:5b2cd31ac474 51 0 0 1 1 0\n\
LancasterUniversity 2:5b2cd31ac474 52 1 1 1 1 1\n\
LancasterUniversity 2:5b2cd31ac474 53 0 0 1 1 1\n\
LancasterUniversity 2:5b2cd31ac474 54 1 1 1 1 1\n\
LancasterUniversity 2:5b2cd31ac474 55 0 0 1 1 0\n");
LancasterUniversity 2:5b2cd31ac474 56
LancasterUniversity 2:5b2cd31ac474 57 MicroBitImage OR("\
LancasterUniversity 2:5b2cd31ac474 58 0 0 0 1 0\n\
LancasterUniversity 2:5b2cd31ac474 59 1 1 1 1 1\n\
LancasterUniversity 2:5b2cd31ac474 60 0 0 0 1 1\n\
LancasterUniversity 2:5b2cd31ac474 61 1 1 1 1 1\n\
LancasterUniversity 2:5b2cd31ac474 62 0 0 0 1 0\n");
LancasterUniversity 2:5b2cd31ac474 63
LancasterUniversity 2:5b2cd31ac474 64 MicroBitImage OUTPUT_ON("\
LancasterUniversity 2:5b2cd31ac474 65 0 1 1 1 0\n\
LancasterUniversity 2:5b2cd31ac474 66 1 1 1 1 1\n\
LancasterUniversity 2:5b2cd31ac474 67 1 1 1 1 1\n\
LancasterUniversity 2:5b2cd31ac474 68 1 1 1 1 1\n\
LancasterUniversity 2:5b2cd31ac474 69 0 1 1 1 0\n");
LancasterUniversity 2:5b2cd31ac474 70
LancasterUniversity 2:5b2cd31ac474 71 MicroBitImage OUTPUT_OFF("\
LancasterUniversity 2:5b2cd31ac474 72 0 1 1 1 0\n\
LancasterUniversity 2:5b2cd31ac474 73 1 0 0 0 1\n\
LancasterUniversity 2:5b2cd31ac474 74 1 0 0 0 1\n\
LancasterUniversity 2:5b2cd31ac474 75 1 0 0 0 1\n\
LancasterUniversity 2:5b2cd31ac474 76 0 1 1 1 0\n");
LancasterUniversity 2:5b2cd31ac474 77
LancasterUniversity 2:5b2cd31ac474 78 int mode = LOGIC_MODE_NOT;
LancasterUniversity 2:5b2cd31ac474 79
LancasterUniversity 2:5b2cd31ac474 80 void onShake(MicroBitEvent)
LancasterUniversity 2:5b2cd31ac474 81 {
LancasterUniversity 2:5b2cd31ac474 82 // The micro:bit has been shaken, so move on to the next logic gate.
LancasterUniversity 2:5b2cd31ac474 83 mode++;
LancasterUniversity 2:5b2cd31ac474 84
LancasterUniversity 2:5b2cd31ac474 85 // Wrap back to the start if necessary.
LancasterUniversity 2:5b2cd31ac474 86 if (mode > LOGIC_MODE_MAX)
LancasterUniversity 2:5b2cd31ac474 87 mode = LOGIC_MODE_MIN;
LancasterUniversity 2:5b2cd31ac474 88
LancasterUniversity 2:5b2cd31ac474 89 // Update the display to
LancasterUniversity 2:5b2cd31ac474 90 switch (mode)
LancasterUniversity 2:5b2cd31ac474 91 {
LancasterUniversity 2:5b2cd31ac474 92 case LOGIC_MODE_NOT:
LancasterUniversity 2:5b2cd31ac474 93 uBit.display.print(NOT);
LancasterUniversity 2:5b2cd31ac474 94 break;
LancasterUniversity 2:5b2cd31ac474 95
LancasterUniversity 2:5b2cd31ac474 96 case LOGIC_MODE_AND:
LancasterUniversity 2:5b2cd31ac474 97 uBit.display.print(AND);
LancasterUniversity 2:5b2cd31ac474 98 break;
LancasterUniversity 2:5b2cd31ac474 99
LancasterUniversity 2:5b2cd31ac474 100 case LOGIC_MODE_OR:
LancasterUniversity 2:5b2cd31ac474 101 uBit.display.print(OR);
LancasterUniversity 2:5b2cd31ac474 102 break;
LancasterUniversity 2:5b2cd31ac474 103
LancasterUniversity 2:5b2cd31ac474 104 case LOGIC_MODE_OUTPUT:
LancasterUniversity 2:5b2cd31ac474 105 uBit.display.print(OUTPUT_OFF);
LancasterUniversity 2:5b2cd31ac474 106 break;
LancasterUniversity 2:5b2cd31ac474 107 }
LancasterUniversity 2:5b2cd31ac474 108 }
LancasterUniversity 2:5b2cd31ac474 109
LancasterUniversity 2:5b2cd31ac474 110 int main()
LancasterUniversity 2:5b2cd31ac474 111 {
LancasterUniversity 2:5b2cd31ac474 112 // Initialise the micro:bit runtime.
LancasterUniversity 2:5b2cd31ac474 113 uBit.init();
LancasterUniversity 2:5b2cd31ac474 114
LancasterUniversity 2:5b2cd31ac474 115 // Register to receive events when the micro:bit is shaken.
LancasterUniversity 2:5b2cd31ac474 116 uBit.messageBus.listen(MICROBIT_ID_GESTURE, MICROBIT_ACCELEROMETER_EVT_SHAKE, onShake);
LancasterUniversity 2:5b2cd31ac474 117
LancasterUniversity 2:5b2cd31ac474 118 //
LancasterUniversity 2:5b2cd31ac474 119 // Create a simple logic gate simulator, using the P0, P1 and P2 pins.
LancasterUniversity 2:5b2cd31ac474 120 // The micro:bit can then be configured as an NOT / AND / OR gate, by shaking the device.
LancasterUniversity 2:5b2cd31ac474 121 //
LancasterUniversity 2:5b2cd31ac474 122 int output = 0;
LancasterUniversity 2:5b2cd31ac474 123
LancasterUniversity 2:5b2cd31ac474 124 // Our icons are drawn left to right, so rotate the display so the outputs point at the pins on the edge connector. :-)
LancasterUniversity 2:5b2cd31ac474 125 uBit.display.rotateTo(MICROBIT_DISPLAY_ROTATION_270);
LancasterUniversity 2:5b2cd31ac474 126
LancasterUniversity 2:5b2cd31ac474 127 while (1)
LancasterUniversity 2:5b2cd31ac474 128 {
LancasterUniversity 2:5b2cd31ac474 129 // Check inputs and update outputs accordingly.
LancasterUniversity 2:5b2cd31ac474 130 switch (mode)
LancasterUniversity 2:5b2cd31ac474 131 {
LancasterUniversity 2:5b2cd31ac474 132 int o1;
LancasterUniversity 2:5b2cd31ac474 133 int o2;
LancasterUniversity 2:5b2cd31ac474 134
LancasterUniversity 2:5b2cd31ac474 135 case LOGIC_MODE_NOT:
LancasterUniversity 2:5b2cd31ac474 136 output = uBit.buttonA.isPressed() ? 0 : !uBit.io.P0.getDigitalValue();
LancasterUniversity 2:5b2cd31ac474 137 uBit.display.print(NOT);
LancasterUniversity 2:5b2cd31ac474 138 break;
LancasterUniversity 2:5b2cd31ac474 139
LancasterUniversity 2:5b2cd31ac474 140 case LOGIC_MODE_AND:
LancasterUniversity 2:5b2cd31ac474 141 o1 = uBit.buttonA.isPressed() || uBit.io.P0.getDigitalValue();
LancasterUniversity 2:5b2cd31ac474 142 o2 = uBit.buttonB.isPressed() || uBit.io.P1.getDigitalValue();
LancasterUniversity 2:5b2cd31ac474 143 output = o1 && o2;
LancasterUniversity 2:5b2cd31ac474 144 break;
LancasterUniversity 2:5b2cd31ac474 145
LancasterUniversity 2:5b2cd31ac474 146 case LOGIC_MODE_OR:
LancasterUniversity 2:5b2cd31ac474 147 output = uBit.buttonA.isPressed() || uBit.io.P0.getDigitalValue() || uBit.buttonB.isPressed() || uBit.io.P1.getDigitalValue();
LancasterUniversity 2:5b2cd31ac474 148 break;
LancasterUniversity 2:5b2cd31ac474 149
LancasterUniversity 2:5b2cd31ac474 150 case LOGIC_MODE_OUTPUT:
LancasterUniversity 2:5b2cd31ac474 151 if (uBit.io.P0.getDigitalValue())
LancasterUniversity 2:5b2cd31ac474 152 uBit.display.print(OUTPUT_ON);
LancasterUniversity 2:5b2cd31ac474 153 else
LancasterUniversity 2:5b2cd31ac474 154 uBit.display.print(OUTPUT_OFF);
LancasterUniversity 2:5b2cd31ac474 155
LancasterUniversity 2:5b2cd31ac474 156 output = 0;
LancasterUniversity 2:5b2cd31ac474 157 break;
LancasterUniversity 2:5b2cd31ac474 158 }
LancasterUniversity 2:5b2cd31ac474 159
LancasterUniversity 2:5b2cd31ac474 160 // Update output pin value
LancasterUniversity 2:5b2cd31ac474 161 uBit.io.P2.setDigitalValue(output);
LancasterUniversity 2:5b2cd31ac474 162
LancasterUniversity 2:5b2cd31ac474 163 // Perform a power efficient sleep for a little while. No need to run too quickly!
LancasterUniversity 2:5b2cd31ac474 164 uBit.sleep(1000);
LancasterUniversity 2:5b2cd31ac474 165 }
LancasterUniversity 2:5b2cd31ac474 166 }
LancasterUniversity 2:5b2cd31ac474 167
LancasterUniversity 2:5b2cd31ac474 168 #endif