Arduino MKR ZERO Board [ABX00012] with SAMD21 Cortex-M0+ 32-Bit ARM MCU, Built-In SD Card Slot for Music Playback, 22 Digital I/O Pins, 12 PWM Outputs, 256KB Flash, 32KB SRAM, 3.3V Operating Voltage

Powerful Performance: Features a 32-bit ARM Cortex-M0+ processor, perfect for learning and developing advanced projects. Built-in SD Card Slot: Play music and manage files easily with the onboard SD card reader-no extra hardware required. Versatile Input/Output Options: Includes 22 digital pins, multiple analog inputs, and PWM outputs, allowing for a wide range of projects. 3.3V Operation: Runs on 3.3V power, with built-in protection for safe use in various applications. Flexible Power Sources: Can be powered via USB or a rechargeable LiPo battery, offering flexibility for portable or stationary setups.