Koichi Kurahashi
自由の旗が永遠にたなびき続けますように。 flag of freedom, forever.
Revision 0:61c89e1770be, committed 2015-11-15
- Comitter:
- TareObjects
- Date:
- Sun Nov 15 10:29:31 2015 +0000
- Commit message:
- solidarite.
Changed in this revision
diff -r 000000000000 -r 61c89e1770be PixelArray.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/PixelArray.lib Sun Nov 15 10:29:31 2015 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/JacobBramley/code/PixelArray/#47802e75974e
diff -r 000000000000 -r 61c89e1770be main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sun Nov 15 10:29:31 2015 +0000
@@ -0,0 +1,64 @@
+#include "mbed.h"
+#include "neopixel.h"
+
+// This must be an SPI MOSI pin.
+#define DATA_PIN dp2
+
+#define N_COL 8
+#define N_ROW 8
+#define N_LED (N_COL * N_ROW)
+
+#define N_WAVE 128
+
+float wave[N_WAVE];
+int gSpeed;
+
+void generate(neopixel::Pixel * out, uint32_t index, uintptr_t extra)
+{
+ uint8_t red, green, blue;
+
+ int x = index % N_COL;
+
+ red = green = blue = 0;
+ uint8_t val = 8.0 * wave[((x+extra)*gSpeed) % N_WAVE] + 16.0 * wave[extra % N_WAVE] + 16.0;
+ val = val / 2;
+ if (x <= 2) {
+ blue = val;
+ } else if (x <= 5) {
+ red = green = blue = val / 2;
+ } else {
+ red = val;
+ }
+
+ out->red = red;
+ out->green = green;
+ out->blue = blue;
+}
+
+int main()
+{
+ // Create a temporary DigitalIn so we can configure the pull-down resistor.
+ // (The mbed API doesn't provide any other way to do this.)
+ // An alternative is to connect an external pull-down resistor.
+ DigitalIn(DATA_PIN, PullDown);
+
+ // The pixel array control class.
+ neopixel::PixelArray array(DATA_PIN);
+
+ for (int i = 0; i < N_WAVE; i++) {
+ wave[i] = sin((float)i / (float)N_WAVE * 3.14159265 * 2.0) * 0.5 + 0.5;
+ }
+
+ int offset = 0;
+ gSpeed = 8;
+
+ while(1) {
+ array.update(generate, N_LED, offset++);
+ if (offset >= N_WAVE) {
+ offset = 0;
+ gSpeed = (rand() % 8) + 4;
+ }
+
+ wait_ms(20);
+ }
+}
diff -r 000000000000 -r 61c89e1770be mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sun Nov 15 10:29:31 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/9296ab0bfc11 \ No newline at end of file