This product makes light. But this is no ordinary light: you can drive the color and intensity of the light. This module is made of 2 parts: the main board, and one sub-board with one RGB (Red Green Blue) led on it. the sub-board can be detached, so you can place the led wherever you want, and even attach a reflector to it.
Moreover, this device does not require a real USB connection to work. You can configure the led color at module power-up, and then use a simple USB charger to power it.
This product is not manufactured anymore. Closest replacement is the Yocto-Color-V2
This device can be connected directly to an Ethernet network using a YoctoHub-Ethernet, to a WiFi network using a YoctoHub-Wireless-g, it can even be connected to a GSM network thanks to the YoctoHub-GSM.
USB cables and enclosures to be ordered separately.
I disconnected the led and since then the led has not been working. I guess that the reason is that I used small saw for separating the units. The saw probably erroneusly connected some of those four wires with each others with copper dust or something. I can communicate with the unit normally but the led does nothing. Anything I should still try to get this unit up and running?
Just send a hi-resolution picture of your device to support. They will tell you if there is hope.
Concluding remark regarding my earlier post: The device works again. The lesson for me was that picoflex must be soldered.