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74HC165 To 74HC595 Shift Register Demo 1 [SPIN] [Propeller]

This is the place to talk about Parallax Propeller Chip and Boards
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74HC165 To 74HC595 Shift Register Demo 1 [SPIN] [Propeller]

Postby Savage///Circuits » Mon May 25, 2015 8:13 pm

Originally posted on the Savage///Circuits Forums
March 1st, 2014, 04:43 PM
by Chris Savage

Before using this code you should read and understand this topic and this topic. This example combines those into a single example where the 74HC165 inputs are read and then sent out to a 74HC595. The same I/O line constants are used as in both previous examples for clarity, however the next example will show how to reduce the number of I/O lines required by the microcontroller from 6 down to 4 by sharing the CLK and Data lines.


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