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Difference between revisions of "Driving a shift register led display driver"

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Using a shift register like the 74HC164 you can drive a 7-seg display using only 2 lines from the processor.
 
Using a shift register like the 74HC164 you can drive a 7-seg display using only 2 lines from the processor.
  
With some smart wiring, you can even count to 16 using 8 bits and 1 74HC164 (just use bit 7 to set the decimal).
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With some smart wiring, you can even count to 19 using 8 bits and 1 74HC164 (just use bit 7 to set the decimal).
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[[Image:Displ1.JPG]]
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Latest revision as of 22:07, 12 July 2010

Using a shift register like the 74HC164 you can drive a 7-seg display using only 2 lines from the processor.

With some smart wiring, you can even count to 19 using 8 bits and 1 74HC164 (just use bit 7 to set the decimal).

Displ1.JPG

Displ2.jpg