takara kasai / Mbed 2 deprecated LEDTape_WS2812

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Dependencies:   mbed

Fork of LEDTape_WS2812 by Suga koubou

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Homepage

this program is forked from following programs. http://mbed.org/users/okini3939/code/LEDTape_WS2812/

differences

diffs from parent source.

- 1. adapted to new type of WS2812.

- 2. change output level to be reversed.

1.adapted to new type of WS2812.

CODE:0

CODE:0

 ___________
|          |________________|

0.4[us] ±150[ns]     0.85[us] ±150[ns]

bef | aft --| 0.35 | 0.4 0.8 | 0.85

CODE:1

 ________________
|               |________|

0.8[us] ±150[ns]     0.45[us] ±150[ns]

bef | aft --|-- 0.7 | 0.4 0.6 | 0.85

CODE:RET

> 50[us] 
|_______|

2. change output level to be reversed

mbed LED module --+ +-- Vcc | - | 5[v] MOSI | -|>- | DIO GND | - | GND --+ +--

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