Looking for a way to extend a USB connection wirelessly, quick search around found plenty of USB to WiFi network and USB to Bluetooth speakers etc but that's not what we are trying to do.
What we want to do is connect a laptop to a piece of test gear like a power supply (has a standard printer type USB port) for remote control of voltage and output on/off. Very low bandwidth stuff, probably using a virtual COM port. Both ends supply 5V (a USB isolator works fine) so we don't need to transmit DC supply, just need communications between the PC and the device.
For OHS reasons (high voltage / temperatures) and to save the need to run a physical cable to the laptop I would like to do this wirelessly. Something like a USB dongle in the laptop and another in the power supply that can between them communicate over a short distance, about 3 to 5 metres would be plenty enough. Doesn't need to be secure, it's only sending numbers. There is no WiFi available / allowed in the area where this will be set up.
Anyone know of or can recommend a way to do this? Would like something basically plug and play, suitable for electricians to operate, so no raspberry pi with custom electronics / coding or similar.