ADA CIRCUIT - Development boards - Adafruit Circuit Playground Classic

"Would you like to learn electronics, with an all-in-one board that has sensors and LEDs built in? Circuit Playground is here - and it's the best way to practice programming on real hardware with no soldering or sewing required! Circuit Playground features an ATmega32u4 processor, just like our popular Flora. The board's also 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). Just program your code into the board then take it on the go! ATmega32u4 Processor, running at 3.3 V and 8 MHz MicroUSB port for programming and debugging with Arduino IDE USB port can act like serial port, keyboard, mouse, joystick or MIDI Circuit Playground has built-in USB support. Built in USB means you plug it in to program it and it just shows up. All you really need is a Micro-B data/sync USB cable - not included! With the new 1.6.4+ Arduino IDE, it takes only a few seconds to add support. 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) 1 x Sound sensor (MEMS microphone) 1 x Mini speaker (magnetic buzzer) 2 x Push buttons, left and right 1 x Slide switch 8 x alligator-clip friendly input/output pins Includes I2C, UART, and 4 pins that can do analog inputs/PWM output All 8 pads can act as capacitive touch inputs Green ""ON"" LED so you know its powered Red ""#13"" LED for basic blinking Reset button Outer Diameter: 50.6 mm "