From b305e521891b8622ebbecc355831e9f8e3a79e9b Mon Sep 17 00:00:00 2001
From: Kjetil Orbekk <kjetil.orbekk@gmail.com>
Date: Thu, 17 Nov 2016 22:29:06 -0500
Subject: documentation

---
 strip/strip.ino | 1 +
 1 file changed, 1 insertion(+)

diff --git a/strip/strip.ino b/strip/strip.ino
index ce9edf8..7e0c395 100644
--- a/strip/strip.ino
+++ b/strip/strip.ino
@@ -18,6 +18,7 @@ int32_t g = 0;
 // Gets the intensity for LED `l`.
 // s is a step between 0 and 1000.
 // l is the led number, between 0 and NUM_LEDS.
+// num_pixels is the width of the pixels to light up.
 float grad(int s, int l, float num_pixels) {
   float scaled = s * 16.0 / 1000;
   float distance = abs(scaled - l);
-- 
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