Let's assume I want to make an asterisk (
*) out of LED strips. I want to control each leg individually, while still being connected to only one GPIO pin. The layout I had in mind, looks like this:
Since it's an LED strip with individually addressable LEDs, I can't just supply 5V, GND, and DATA to the middle and expect it to work (I highly assume).
If I want to do this, I assume I need to keep running them in "series", basically meaning I hook up one of the strips to the Arduino, then at the end of the strip I run a long wire to the start of one of the others and then repeat. Something like this:
but only for the data wire, as I can simply power all of them in the middle. If not, how can I do this? What happens if I hook up 5 strips' DATA to a single GPIO pin on the Arduino? Are all 5 strips shared then, so each strip's first LED is also the first I would turn on?