Are there USB-controlled LED lights or indicators?

Question

Arduino

In the office (and at home) for effective work, there is not enough employment indicator to understand whether it is possible to contact a person with a question, such as: chezasite.com/other/v-latvii-pridumali-indikator-z...

Is there any analogue ? Ideally available for purchase in Russia, but the Chinese brothers will do.
Ideal option: UBS device compatible with any Pomodoro service/software.
Minimum option: UBS device with the ability to control by any API

Answer 1

Usually the distance to the lamp from the switch is too far for USB. So these lamps are meaningless.