Driver for the HT16K33 backpack and 7-segement display from Adafruit.
npm install ht16k33-sevensegment-display
var SevenSegment = require('ht16k33-sevensegment-display');
var display = new SevenSegment(0x70, 1);
display.writeDigit(0, 8);
MIT
Magnus Nordin 2016