Alberto Piganti
/
blip_rainbow
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Fork of
NeoPixel Demo
by 
Jacob Bramley
main.cpp@3:2d84c8262139, 2015-11-26 (annotated)
- Committer:
- pighixxx
- Date:
- Thu Nov 26 09:28:37 2015 +0000
- Revision:
- 3:2d84c8262139
- Parent:
- 1:ca76237d2965
miniblip demo program
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| pighixxx | 3:2d84c8262139 | 1 | // miniblip led matrix demo |
| pighixxx | 3:2d84c8262139 | 2 | |
| JacobBramley | 0:60499ad28ea9 | 3 | #include "mbed.h" |
| JacobBramley | 1:ca76237d2965 | 4 | #include "neopixel.h" |
| JacobBramley | 0:60499ad28ea9 | 5 | |
| pighixxx | 3:2d84c8262139 | 6 | // Matrix led output pin |
| pighixxx | 3:2d84c8262139 | 7 | #define DATA_PIN P0_9 |
| JacobBramley | 0:60499ad28ea9 | 8 | |
| JacobBramley | 1:ca76237d2965 | 9 | void generate(neopixel::Pixel * out, uint32_t index, uintptr_t extra) |
| JacobBramley | 1:ca76237d2965 | 10 | { |
| JacobBramley | 1:ca76237d2965 | 11 | uint32_t brightness = (index + extra) >> 3; |
| JacobBramley | 1:ca76237d2965 | 12 | out->red = ((index + extra) & 0x1) ? brightness : 0; |
| JacobBramley | 1:ca76237d2965 | 13 | out->green = ((index + extra) & 0x2) ? brightness : 0; |
| JacobBramley | 1:ca76237d2965 | 14 | out->blue = ((index + extra) & 0x4) ? brightness : 0; |
| JacobBramley | 0:60499ad28ea9 | 15 | } |
| JacobBramley | 0:60499ad28ea9 | 16 | |
| JacobBramley | 1:ca76237d2965 | 17 | int main() |
| JacobBramley | 1:ca76237d2965 | 18 | { |
| pighixxx | 3:2d84c8262139 | 19 | // Turn off miniblip buzzer |
| pighixxx | 3:2d84c8262139 | 20 | PwmOut speaker(P0_8); |
| pighixxx | 3:2d84c8262139 | 21 | speaker=0.0; |
| JacobBramley | 1:ca76237d2965 | 22 | // Create a temporary DigitalIn so we can configure the pull-down resistor. |
| JacobBramley | 1:ca76237d2965 | 23 | DigitalIn(DATA_PIN, PullDown); |
| JacobBramley | 1:ca76237d2965 | 24 | |
| JacobBramley | 1:ca76237d2965 | 25 | // The pixel array control class. |
| JacobBramley | 1:ca76237d2965 | 26 | neopixel::PixelArray array(DATA_PIN); |
| JacobBramley | 1:ca76237d2965 | 27 | |
| JacobBramley | 1:ca76237d2965 | 28 | uint32_t offset = 0; |
| pighixxx | 3:2d84c8262139 | 29 | uint32_t i = 1; |
| JacobBramley | 1:ca76237d2965 | 30 | while (1) { |
| pighixxx | 3:2d84c8262139 | 31 | array.update(generate, 64, offset++); |
| pighixxx | 3:2d84c8262139 | 32 | |
| pighixxx | 3:2d84c8262139 | 33 | //Play Sound |
| pighixxx | 3:2d84c8262139 | 34 | float note=500+(i*100); |
| pighixxx | 3:2d84c8262139 | 35 | //speaker.period(1.0/note); |
| pighixxx | 3:2d84c8262139 | 36 | //speaker = float(i)/50.0; |
| pighixxx | 3:2d84c8262139 | 37 | |
| pighixxx | 3:2d84c8262139 | 38 | i++; |
| pighixxx | 3:2d84c8262139 | 39 | if (i>10) i=1; |
| pighixxx | 3:2d84c8262139 | 40 | // Rainbow delay |
| pighixxx | 3:2d84c8262139 | 41 | wait_ms(100); |
| JacobBramley | 0:60499ad28ea9 | 42 | } |
| JacobBramley | 0:60499ad28ea9 | 43 | } |