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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 PCF8574A to control 1602A LCD

1602A https://www.sparkfun.com/datasheets/LCD/ADM1602K-NSR-FBS-3.3v.pdf

PCF8574A I2C controlling a 1602A LCD

D7-D4 High bit nibble sent first, then lower nibble

i2c https://www.robotshop.com/community/forum/t/drive-a-standard-hd44780-lcd-using-a-pcf8574-and-i2c/12876

PCF LCD P0 RS P1 RW P2 E P3 backlight P4 D4 P5 D5 P6 D6 P7 D7

  1. mvn clean package
  2. cd target/distribution
  3. sudo ./runPCF8574A_LCD1602A.sh parms........

sudo ./runPCF8574A_LCD1602A.sh -b 0x01 -a 0x27 -t trace -line1 aBc -line2 XyZ

Clears display, Line1 begins in fourth position, line2 begins in second position sudo ./runPCF8574A_LCD1602A.sh -b 0x01 -a 0x27 -clearLCD -t trace -line1 aaaaaa -line1Offset 4 -line2 zzzzzz -line2Offset 2

Param -shiftL 2 shift both lines 2 positions to left