Todbot has a wonderful article on how to use the BlinkM Smart LEDs with Arduino programs. You will need a low cost AVR programmer, some additions to the Arduino environment, and simple hardware hookup.
You can pick up the mentioned USBtinyISP programmer in the Adafruit Store.
I can’t wait to give this a try.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.