A computer controls a tiny device’s light over a wired network
An open-source project called SSH.RP lets a computer switch a small device’s light on and off through a network cable. Commands travel encrypted, meaning they are not sent as readable text. It is a useful remote-control experiment, but its security has not been independently audited.
What has been built?
The initial software release appeared on 16 October, followed by Hackster coverage on 21 October. A small control component called RP2040 carries out the commands. A second component, W5500, provides the wired network connection; RP2040 does not have that connection by itself.
How does the command reach the light?
The computer uses an encrypted command connection called SSH. The device’s internal program understands on, off, blink and light-status commands. That does not make the device a full computer.
What limits the demonstration?
This version accepts one connection at a time. Connection secrets are stored in device memory, which the author says someone with physical access can read. The demonstration therefore does not establish the security of a finished device.