{"title":"Circuit Playground Bluefruit - ALPHA - Bluetooth Low Energy","handle":"circuit-playground-bluefruit-alpha-bluetooth-low-energy","url":"/products/circuit-playground-bluefruit-alpha-bluetooth-low-energy","description":"The Circuit Playground Bluefruit builds on the popular Circuit Playground Express by upgrading to an nRF52840 microcontroller with built-in Bluetooth Low Energy. The round board is packed with sensors, LEDs, and inputs — all accessible via alligator-clip pads with no soldering required.\n\nProgram it with CircuitPython, Arduino, or Microsoft MakeCode. Power it from USB, a AAA battery pack, or a LiPo battery. The built-in USB port shows up as a drive for drag-and-drop programming and can also act as a serial port, keyboard, mouse, joystick, or MIDI device.\n\nOnboard Features\n\n\nnRF52840 Cortex M4 – With Bluetooth Low Energy support\n\n10× Mini NeoPixels – Full RGB, individually addressable\n\nMotion Sensor – LIS3DH triple-axis accelerometer (tap and free-fall detection)\n\nTemperature Sensor – Thermistor\n\nLight Sensor – Phototransistor (also works as colour and pulse sensor)\n\nSound Sensor – MEMS microphone\n\nMini Speaker – 7.5 mm magnetic speaker with Class D amplifier\n\n2× Push Buttons – Labelled A and B\n1× Slide Switch\n\n8× Alligator-Clip I/O Pads – Including I²C, UART, 6 analogue inputs, and PWM outputs\n\n2 MB SPI Flash – For CircuitPython code and library storage\n\nMicro USB Port – Programming, debugging, and USB HID\n\nGreen Power LED and Red #13 LED\n\nReset Button\n\n\nIdeal For\n\nLearning electronics and programming\nBluetooth Low Energy projects and wearables\nInteractive art and music installations\nSTEM education and workshops\n","vendor":"Adafruit","product_type":"physical","in_stock":false,"options":[],"variants":[{"id":4982,"title":"Default Title","sku":"AF-4333","price":50.42,"compare_at_price":0.0,"on_sale":false,"in_stock":false,"available_quantity":0,"option1":"Default Title"}]}