An example of how to us the micro:bit DAL's accelerometer abstraction. This is a one-way sync from 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
Diff: main.cpp
- Revision:
- 0:d7b7ac4f9a21
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Wed Jul 13 11:47:40 2016 +0100 @@ -0,0 +1,70 @@ +/* +The MIT License (MIT) + +Copyright (c) 2016 British Broadcasting Corporation. +This software is provided by Lancaster University by arrangement with the BBC. + +Permission is hereby granted, free of charge, to any person obtaining a +copy of this software and associated documentation files (the "Software"), +to deal in the Software without restriction, including without limitation +the rights to use, copy, modify, merge, publish, distribute, sublicense, +and/or sell copies of the Software, and to permit persons to whom the +Software is furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +DEALINGS IN THE SOFTWARE. +*/ + +#include "MicroBit.h" + +MicroBit uBit; + +// +// Scales the given value that is in the -1024 to 1024 range +// int a value between 0 and 4. +// +int pixel_from_g(int value) +{ + int x = 0; + + if (value > -750) + x++; + if (value > -250) + x++; + if (value > 250) + x++; + if (value > 750) + x++; + + return x; +} + +int main() +{ + // Initialise the micro:bit runtime. + uBit.init(); + + // + // Periodically read the accelerometer x and y values, and plot a + // scaled version of this ont the display. + // + while(1) + { + int x = pixel_from_g(uBit.accelerometer.getX()); + int y = pixel_from_g(uBit.accelerometer.getY()); + + uBit.display.image.clear(); + uBit.display.image.setPixelValue(x, y, 255); + + uBit.sleep(100); + } +} +