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shiftbar [2012/01/05 17:03]
macegr
shiftbar [2015/05/21 20:50] (current)
macegr
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-===== Introduction ​=====+===== ShiftBar ​=====
 {{shiftbar.jpg?​nolink ​ }} {{shiftbar.jpg?​nolink ​ }}
 [[http://​macetech.com/​store/​index.php?​main_page=product_info&​cPath=1&​products_id=10|ShiftBars]] are optimized to drive clusters of LEDs, or commonly available 12V common-anode RGB LED bars. It has three LED current sink outputs and a small controller chip, the Allegro A6281. The A6281 provides 10-bit PWM and 7-bit current control for each of the LED channels. It uses a simple clocked serial interface to receive a 10-bit brightness value for each color, resulting in over a billion possible colors. Each input is buffered and output on the other side of the module. This allows each ShiftBar to repeat the signal to the next, allowing longer cable runs between elements without excessive loading of microcontroller I/O pins. [[http://​macetech.com/​store/​index.php?​main_page=product_info&​cPath=1&​products_id=10|ShiftBars]] are optimized to drive clusters of LEDs, or commonly available 12V common-anode RGB LED bars. It has three LED current sink outputs and a small controller chip, the Allegro A6281. The A6281 provides 10-bit PWM and 7-bit current control for each of the LED channels. It uses a simple clocked serial interface to receive a 10-bit brightness value for each color, resulting in over a billion possible colors. Each input is buffered and output on the other side of the module. This allows each ShiftBar to repeat the signal to the next, allowing longer cable runs between elements without excessive loading of microcontroller I/O pins.
/home/macetec/public_html/docs/data/pages/shiftbar.txt ยท Last modified: 2015/05/21 20:50 by macegr