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/Greyscale.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_GREYSCALE
LancasterUniversity 2:5b2cd31ac474 30
LancasterUniversity 2:5b2cd31ac474 31 MicroBit uBit;
LancasterUniversity 2:5b2cd31ac474 32
LancasterUniversity 2:5b2cd31ac474 33 int main()
LancasterUniversity 2:5b2cd31ac474 34 {
LancasterUniversity 2:5b2cd31ac474 35 // Initialise the micro:bit runtime.
LancasterUniversity 2:5b2cd31ac474 36 uBit.init();
LancasterUniversity 2:5b2cd31ac474 37
LancasterUniversity 2:5b2cd31ac474 38 // Enable per pixel rendering, with 256 level of brightness per pixel.
LancasterUniversity 2:5b2cd31ac474 39 uBit.display.setDisplayMode(DISPLAY_MODE_GREYSCALE);
LancasterUniversity 2:5b2cd31ac474 40
LancasterUniversity 2:5b2cd31ac474 41 // Draw a rainbow brightness effect across the display
LancasterUniversity 2:5b2cd31ac474 42 int value = 1;
LancasterUniversity 2:5b2cd31ac474 43
LancasterUniversity 2:5b2cd31ac474 44 for(int j = 0; j < 5; j++)
LancasterUniversity 2:5b2cd31ac474 45 {
LancasterUniversity 2:5b2cd31ac474 46 for(int i = 0; i < 5; i++)
LancasterUniversity 2:5b2cd31ac474 47 {
LancasterUniversity 2:5b2cd31ac474 48 uBit.display.image.setPixelValue(i,j,value);
LancasterUniversity 2:5b2cd31ac474 49 value += 10;
LancasterUniversity 2:5b2cd31ac474 50 }
LancasterUniversity 2:5b2cd31ac474 51 }
LancasterUniversity 2:5b2cd31ac474 52
LancasterUniversity 2:5b2cd31ac474 53 // Nothing else to do, so enter a power efficient sleep.
LancasterUniversity 2:5b2cd31ac474 54 while(1)
LancasterUniversity 2:5b2cd31ac474 55 uBit.sleep(10000);
LancasterUniversity 2:5b2cd31ac474 56 }
LancasterUniversity 2:5b2cd31ac474 57
LancasterUniversity 2:5b2cd31ac474 58 #endif