Diff: neopixel.cpp

Revision:

0:2f6112d75752

diff -r 000000000000 -r 2f6112d75752 neopixel.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/neopixel.cpp	Thu Apr 13 04:53:11 2017 +0000
@@ -0,0 +1,106 @@
+#include "mbed.h" // remove line if not using mbed
+ 
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include "nrf_delay.h"
+#include "nrf_gpio.h"
+#include "neopixel.h"
+ 
+ 
+void neopixel_init(neopixel_strip_t *strip, uint8_t pin_num, uint16_t num_leds)
+{
+    strip->leds = (color_t*) malloc(sizeof(color_t) * num_leds);
+    strip->pin_num = pin_num;
+    strip->num_leds = num_leds;
+    nrf_gpio_cfg_output(pin_num);
+    NRF_GPIO->OUTCLR = (1UL << pin_num);
+    for (int i = 0; i < num_leds; i++)
+    {   
+        strip->leds[i].simple.g = 0;
+        strip->leds[i].simple.r = 0;
+        strip->leds[i].simple.b = 0;
+    }
+}
+ 
+void neopixel_clear(neopixel_strip_t *strip)
+{
+        for (int i = 0; i < strip->num_leds; i++)
+        {
+            strip->leds[i].simple.g = 0;
+            strip->leds[i].simple.r = 0;
+            strip->leds[i].simple.b = 0;
+        }
+            neopixel_show(strip);
+}
+ 
+void neopixel_show(neopixel_strip_t *strip)
+{
+    const uint8_t PIN =  strip->pin_num;
+    NRF_GPIO->OUTCLR = (1UL << PIN);
+    //nrf_delay_us(50);
+    nrf_delay_us(100);
+              for (int i = 0; i < strip->num_leds; i++)
+            {
+                for (int j = 0; j < 3; j++)
+                {
+                    if ((strip->leds[i].grb[j] & 128) > 0)  {NEOPIXEL_SEND_ONE}
+                    else    {NEOPIXEL_SEND_ZERO}
+                    
+                    if ((strip->leds[i].grb[j] & 64) > 0)   {NEOPIXEL_SEND_ONE}
+                    else    {NEOPIXEL_SEND_ZERO}
+                    
+                    if ((strip->leds[i].grb[j] & 32) > 0)   {NEOPIXEL_SEND_ONE}
+                    else    {NEOPIXEL_SEND_ZERO}
+                    
+                    if ((strip->leds[i].grb[j] & 16) > 0)   {NEOPIXEL_SEND_ONE}
+                    else    {NEOPIXEL_SEND_ZERO}
+                    
+                    if ((strip->leds[i].grb[j] & 8) > 0)    {NEOPIXEL_SEND_ONE}
+                    else    {NEOPIXEL_SEND_ZERO}
+                    
+                    if ((strip->leds[i].grb[j] & 4) > 0)    {NEOPIXEL_SEND_ONE}
+                    else    {NEOPIXEL_SEND_ZERO}
+                    
+                    if ((strip->leds[i].grb[j] & 2) > 0)    {NEOPIXEL_SEND_ONE}
+                    else    {NEOPIXEL_SEND_ZERO}
+                    
+                    if ((strip->leds[i].grb[j] & 1) > 0)    {NEOPIXEL_SEND_ONE}
+                    else    {NEOPIXEL_SEND_ZERO}
+                }
+            }
+}
+ 
+uint8_t neopixel_set_color(neopixel_strip_t *strip, uint16_t index, uint8_t red, uint8_t green, uint8_t blue )
+{
+        if (index < strip->num_leds)
+        {
+            strip->leds[index].simple.r = red;
+            strip->leds[index].simple.g = green;
+            strip->leds[index].simple.b = blue;
+        }
+        else
+                return 1;
+        return 0;
+}
+ 
+uint8_t neopixel_set_color_and_show(neopixel_strip_t *strip, uint16_t index, uint8_t red, uint8_t green, uint8_t blue)
+{
+        if (index < strip->num_leds)
+        {
+            strip->leds[index].simple.r = red;
+            strip->leds[index].simple.g = green;
+            strip->leds[index].simple.b = blue;
+          neopixel_show(strip); 
+        }
+        else
+                return 1;
+        return 0;
+}
+ 
+void neopixel_destroy(neopixel_strip_t *strip)
+{
+    free(strip->leds);
+    strip->num_leds = 0;
+    strip->pin_num = 0;
+}
\ No newline at end of file