@Yveaux said:

And another small one; an RGB dimmer!

I tried this 3-dimmer approach, but I found it not responsive enough. Sometimes the arduino can't be fast enough to process 3 consecutive requests, and the result is lame. (it changes 2 of 3 colors only)
I think this would be more efficient with transmitting just one cummulative message with all 3 colors and decoding it in arduino.