From: ladyada <limor@ladyada.net>
Date: Fri, 31 Aug 2018 18:05:34 +0000 (-0400)
Subject: less cute pixel splitting
X-Git-Tag: 0.2.4^2~3
X-Git-Url: https://git.ayoreis.com/Adafruit_Blinka-hackapet.git/commitdiff_plain/66d90bbbfda01c57fa58f38de704b489b7dd6902?ds=inline

less cute pixel splitting
---

diff --git a/src/adafruit_blinka/microcontroller/raspi_23/neopixel.py b/src/adafruit_blinka/microcontroller/raspi_23/neopixel.py
index 5e99cf2..381d4f6 100644
--- a/src/adafruit_blinka/microcontroller/raspi_23/neopixel.py
+++ b/src/adafruit_blinka/microcontroller/raspi_23/neopixel.py
@@ -57,11 +57,12 @@ def neopixel_write(gpio, buf):
         raise RuntimeError("Raspberry Pi neopixel support is for one strip only!")
 
     # assign all colors!
-    # bad way
-    pixels = zip(*[iter(buf)]*3)
-    for i, pixel in enumerate(pixels):
-        #print(pixel)
-        ws.ws2811_led_set(channel, i, pixel[0]<<16 | pixel[1] << 8 | pixel[2])
+    for i in range(len(buf) // 3):
+        r = buf[3*i] & 0xFF
+        g = buf[3*i+1] & 0xFF
+        b = buf[3*i+2] & 0xFF
+        pixel = (r << 16) | (g << 8) | b
+        ws.ws2811_led_set(channel, i, pixel)
     
     resp = ws.ws2811_render(_led_strip)
     if resp != ws.WS2811_SUCCESS: