A node library to control the backlight of the official Raspberry Pi 7" touch display
npm install --save rpi-backlightvar backlight = require('rpi-backlight');
// All methods return promises.
backlight.powerOn();
backlight.powerOff();
backlight.isPoweredOn();
backlight.getBrightness();
backlight.setBrightness(value); // The screen goes Off at <= 9 brightness value
backlight.getMaxBrightness();