Circuit Playground Express
Circuit Playground Express is the next step towards a perfect introduction to electronics and programming. The board is round and has alligator-clip pads around it so you don't have to solder or sew to make it work. You can power it from USB, a AAA battery pack, or with a Lipoly battery (for advanced users). Circuit Playground Express has built-in USB support. Built in USB means you plug it in to program it and it just shows up, no special cable or adapter required. Just program your code into the board then take it on the go! Here's some of the great goodies baked in to each Circuit Playground Express: 10 x mini NeoPixels, each one can display any color 1 x Motion sensor (LIS3DH triple-axis accelerometer with tap detection, free-fall detection) 1 x Temperature sensor (thermistor) 1 x Light sensor (phototransistor). Can also act as a color sensor and pulse sensor. 1 x Sound sensor (MEMS microphone) 1 x Mini speaker with class D amplifier (7.5mm magnetic speaker/buzzer) 2 x Push button