reallyinsane / mathan-adafruit-24-segment-bargraph-i2c

yad2xx extension for Adafruit 24 segment bargraph using I2C

yad2xx extension for Adafruit 24 segment bargraph using I2C

This is Java API extension to yad2xx. The colors of the bars can be controlled with a simple API.

// configure an I2C instance
I2C device;
// create a Bargraph instance
Bargraph bargraph = new Bargraph(device);
// clear the display
bargraph.clear();
// change the color of a bar
bargraph.setBar(1, Color.RED);
bargraph.setBar(1, Color.GREEN);
bargraph.setBar(1, Color.YELLOW);
bargraph.setBar(1, Color.OFF);
// change a number of bars using a percentage setting, e.g. setting bar 1-12 to green
bargraph.setPercentage(0.5, Color.GREEN);

yad2xx linking

This project is using the yad2xx library released under LGPL3. The dynamic linking is done using Maven dependency mechanism. To change the linking to a different version of the library just change the dependency. A copy of the library binary and license is available in the lib folder. A source artifact has not been provided by the publisher of the library. You can find the source code on the SourceForge project page of yad2xx.

Chip details

The Adafruit 24 segment bargraph is using a HT16K33 chip of holtek. The chip documentation can be found in the doc folder.