This 5mm Water-clear Phototransistor will pick up visible and infrared light and conduct current. When light reaches this high sensitive/fast response time component it's much like current reaching the base of a transistor which allows current to flow from collector to emitter.
FreeM is a wireless Infrared I2C controller for completely stand-alone programming and control of BlinkM smart LEDs. It's like an invisible wire linking a Remote, a LinkM, and/or an Arduino to BlinkMs.
This is the LilyPad Arduino Simple Board. It's controlled by an ATmega328 with the Arduino bootloader. It has fewer pins than the LilyPad Arduino Main Board, a built in power supply socket, and an on/off switch.