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Pi4J :: Java I/O Library for Raspberry Pi :: Device :: SN74HC595 8 Bit shift register

This repository contains device specific support for various devices.

This is an example implementation and will need to be adjusted to fit your needs.

Project by Tom Aarts

Specific usage of sn74hc595 to control 1602A LCD

                        9               8         gnd

gpio13 10 7 QH Red LED
gpio6 11 6 QG
gpio5 12 5 QF
gpio20 13 4 QE
gpio23 14 3 QD
QA 15 2 QC Green LED Vdd 5v 16 1 QB

  1. mvn clean package
  2. cd target/distribution
  3. sudo ./runSN74HC595.sh parms........

https://www.ti.com/product/SN74HC595

To turn pin QC Green LED on sudo ./runSN74HC595.sh -ds 23 -oe 20 -st 5 -mr 13 -sh 6 -rd 0x4

To turn pin QC and QH Green LED on sudo ./runSN74HC595.sh -ds 23 -oe 20 -st 5 -mr 13 -sh 6 -rd 0x84

Set trace level to trace sudo ./runSN74HC595.sh -ds 23 -oe 20 -st 5 -mr 13 -sh 6 -rd 0x2 -t trace