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Control 3×7 segment LED display with one MCU pin
Posted by admin on January 3rd, 2008
ibsimed1 have developed a single I/O-Pin 3×7-Segment Display board. It only needs one microcontroller I/O pin and power source. The board itself is very simple but idea is great – it uses three serial to paralel converters 74HC164 which activates LED segments. As it is said – display board uses only one I/O pin which also serves as CLK source for serial to paralel converters (from 500kHz to 8MHz). [via]
Control 3×7 segment LED display with one MCU pin - [Link]
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