When you’re connecting gear to a network, it can be difficult to figure out what IP address the device has been assigned. [Bas Pijls] frequently observed this difficulty in the classroom and set out to provide a simple technique for small devices to convey their IP address and other data with the least amount of hassle.
[Bas] was looking for a way to do that without adding a display to the hardware, as that would add a lot of complexity and cost to simple chevaliers. Instead, RGBeacon was designed, which uses a single RGB WS2812B LED to flash network information from a microcontroller.
It’s a clever workaround that should make setting up devices in [Basclasses]’s a breeze. It doesn’t have to be limited to network data; the code might be adapted to allow a microcontroller to flash out other messages as well. It’s similar to the original Timex Datalink watches, which communicated via monitor flashes.