Add MIT license

WS2812Serial.cpp

+/*  WS2812Serial - Non-blocking WS2812 LED Display Library
+    https://github.com/PaulStoffregen/WS2812Serial
+    Copyright (c) 2017 Paul Stoffregen, PJRC.COM, LLC
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
 
 #include "WS2812Serial.h"
 

WS2812Serial.h

+/*  WS2812Serial - Non-blocking WS2812 LED Display Library
+    https://github.com/PaulStoffregen/WS2812Serial
+    Copyright (c) 2017 Paul Stoffregen, PJRC.COM, LLC
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
 #ifndef WS2812Serial_h_
 #define WS2812Serial_h_
 

examples/BasicTest/BasicTest.ino

+/* WS2812Serial BasicTest Example
+
+   Test LEDs by turning then 7 different colors.
+
+   This example code is in the public domain. */
+
 #include <WS2812Serial.h>
 
 const int numled = 64;
 //   Teensy 3.5:  1, 5, 8, 10, 20, 26, 32, 33, 48
 //   Teensy 3.6:  1, 5, 8, 10, 20, 26, 32, 33
 
-byte drawingMemory[numled*3];
-DMAMEM byte displayMemory[numled*12];
+byte drawingMemory[numled*3];         //  3 bytes per LED
+DMAMEM byte displayMemory[numled*12]; // 12 bytes per LED
 
 WS2812Serial leds(numled, displayMemory, drawingMemory, pin, WS2812_GRB);
 

readme.md

 
 WS2812Serial controls a single LED strip, using only 1 pin.  While any number of
 LEDs may be connected, in practice 1 pin is best for small projects with less
-than 500 to 1000 LEDs.  OctoWS2811 offers 8 parallel outputs for large projects.
+than 600 LEDs.  OctoWS2811 offers 8 parallel outputs for large projects.
 
 Non-blocking performance does come with a cost.  15 bytes of memory are required
 per LED, rather than the usual 3 bytes with [FastLED](http://fastled.io/) or