Diff: neopixel.h

Revision:

0:a81364d9a67b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/neopixel.h	Tue Mar 21 21:17:08 2017 +0000
@@ -0,0 +1,69 @@
+#ifndef NEOPIXEL_H
+#define NEOPIXEL_H
+#include "mbed.h"
+
+/*
+// Example
+
+NeoPixelOut npx(D12);
+
+int main() {
+    wait(0.2); // wait for HSE to stabilize
+    
+    npx.global_scale = 1.0f; // Adjust brightness
+    npx.normalize = true; // Equalize brightness to make r + g + b = 255
+    
+    Pixel strip[6];
+    strip[0].hex = 0xFF0000;
+    strip[1].hex = 0xFFFF00;
+    strip[2].hex = 0x00FF00;
+    strip[3].hex = 0x00FFFF;
+    strip[4].hex = 0x0000FF;
+    strip[5].hex = 0xFF00FF;
+    
+    npx.send(strip, 6);
+    
+    while(1);
+}
+*/
+
+
+
+/**
+ * @brief Struct for easy manipulation of RGB colors.
+ *
+ * Set components in the xrgb.r (etc.) and you will get
+ * the hex in xrgb.num.
+ */
+union Pixel {
+    /** Struct for access to individual color components */
+    struct __attribute__((packed)) {
+        uint8_t b;
+        uint8_t g;
+        uint8_t r;
+        uint8_t a; // unused
+    };
+
+    /** RGB color as a single uint32_t */
+    uint32_t hex;
+};
+
+
+class NeoPixelOut : DigitalOut {
+private:
+    void byte(uint32_t b);    
+    
+public:
+    bool normalize;
+    float global_scale; 
+
+    NeoPixelOut(PinName pin);
+    
+    void send(Pixel *colors, uint32_t count, bool flipwait=true);
+    
+    /** Wait long enough to make the colors show up */
+    void flip(void);
+};
+
+
+#endif /* NEOPIXEL_H */
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