litra-controller

Logitech Litra Glow Controller

This is a fairly simple module and CLI to provide programmatic control of the Logitech Litra Glow lightbox over USB. This package uses node-hid to use the HID-API in Node.js.

Requirements

Node 18+ (really any Node version that support ESM and the parseArgs utility)

References

• Controlling the Logitech Litra Glow via Shortcuts
• kharyam/litra-driver
• dandean/logitech-litra-beam

Usage

CLI

The CLI can be invoked as litra:

> litra

Welcome to Litra Controller!

Use this CLI to control your Logitech Litra Glow!
--help, -h:            Get info about commands and various controls
--info, -i:            Get info about the device, if connected
--on:                  Turn on the light
--off:                 Turn off the light
--brightness, -b:      Set the brightness of the light, 0-100
--temp, -t:            Set the temperature of the light (color shade), between 2700 and 6500

Get info about the connected device:

litra --info

┌──────────────┬────────────────┐
│   (index)    │     Values     │
├──────────────┼────────────────┤
│ manufacturer │     'Logi'     │
│   product    │  'Litra Glow'  │
│ serialNumber │ 'xxxxxxxxxxxx' │
└──────────────┴────────────────┘

Turn on the light:

litra --on

Turn off the light:

litra --off

Adjust the brightness (between 0 and 100):

litra --brightness 40

Adjust the color temperature (between 2700 and 6500):

litra --temp 4400

The options can be chained together as well:

litra --on --brightness 60 --temp 5000

Module

This package can also be installed as a dependency of another Node.js project and used as a module:

import { LitraController } from 'litra-controller';

const device = new LitraController();

device.getInfo();
device.on();
device.off();
device.setBrightness(55);
device.setTemperature(2700);