{"title":"Adafruit Itsy Bitsy 32u4 - 3V 8MHz","handle":"adafruit-itsy-bitsy-32u4-3v-8mhz","url":"/products/adafruit-itsy-bitsy-32u4-3v-8mhz","description":"The Adafruit Itsy Bitsy 32u4 3V packs the power of an Arduino Leonardo into a tiny 1.4\" × 0.7\" board. Built on the ATmega32u4 with native USB, it's perfect for compact projects that need a full set of GPIO pins without the bulk of a standard Arduino.\n\nRunning at 3.3V and 8 MHz, the Itsy Bitsy 32u4 is programmed via the Arduino IDE using the same USB bootloader as the Feather 32u4 and Arduino Leonardo. It can act as a USB keyboard, mouse, MIDI device, or serial port — no FTDI adapter needed.\n\nKey Features\n\n\nATmega32u4 Microcontroller – 3.3V logic, 8 MHz clock, 2 KB RAM, 28 KB Flash\n\nNative USB – USB HID keyboard, mouse, MIDI, or CDC serial; Micro-USB connector\n\n23 GPIO Pins – 6 analogue inputs, SPI, I2C, hardware serial, 4× PWM, and more\n\nVHigh Output Pin – Outputs the higher of VBAT or VUSB for powering external devices\n\nLevel-Shifted Pin 5 – 5V logic-level output for driving NeoPixels, servos, or LEDs from a 3.3V board\n\nOnboard 3.3V Regulator – 500 mA output, up to 6V input, with reverse-polarity and thermal protection\n\nAutomatic Power Switching – Runs from USB or battery (VBAT pin) with seamless switchover\n\nCompact Form Factor – Just 1.4\" × 0.7\" (35.6 × 17.8 mm)\n\n\nIdeal For\n\nCompact Arduino projects after prototyping on a full-size board\nUSB HID devices — custom keyboards, mice, and MIDI controllers\nWearable electronics and space-constrained builds\nBattery-powered projects with automatic USB/battery switching\n\n\nPackage Contents\n\n1× Adafruit Itsy Bitsy 32u4 3V 8 MHz\n\n\n\nNote: Headers are not soldered on. You'll need to solder headers for breadboard use.\n\n\nResources\n\nAdafruit Itsy Bitsy 32u4 Guide\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":8652,"title":"Default Title","sku":"AF-3675","price":20.02,"on_sale":false,"in_stock":true,"available_quantity":22,"option1":"Default Title"}]}