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 | + | 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]] | [[Image:Displ1.JPG]] | ||
| − | [[Image:Displ2. | + | [[Image:Displ2.jpg]] |
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).
