Adafruit Circuit Playground Express

Circuit Playground Express is the next step towards a perfect introduction to electronics and programming. It features more sensors and easier programming than its predecessor. Compatible with multiple programming platforms including Microsoft MakeCode, CircuitPython, code.org CS Discoveries, and Arduino IDE, it is suitable for beginners and experts alike.

The board is round with alligator-clip pads, no soldering or sewing required. Power via USB, AAA battery pack, or Lipoly battery for portability.

Key features include:

• 10 x mini NeoPixels (full-color LEDs)
• Motion sensor with LIS3DH triple-axis accelerometer (tap, free-fall detection)
• Temperature sensor (thermistor)
• Light sensor (phototransistor), also usable as color and pulse sensor
• Sound sensor (MEMS microphone)
• Mini speaker with class D amplifier
• 2 push buttons (A and B) and 1 slide switch
• Infrared receiver and transmitter supporting remote control codes and messaging between boards
• 8 alligator-clip friendly input/output pins with I2C, UART, analog, PWM support
• 7 capacitive touch pads and 1 true analog output pad
• Green power LED and red activity LED
• Reset button
• ATSAMD21 ARM Cortex M0 processor at 3.3V, 48MHz
• 2MB SPI Flash storage for CircuitPython code and libraries
• MicroUSB port for programming and debugging, USB can emulates serial, keyboard, mouse, joystick, or MIDI

Dimensions: approximately 50.6mm (~2.0" diameter). Weight: 8.9g.

For a detailed introduction and tutorials, visit the Adafruit Circuit Playground Express guide.