{"title":"Adafruit Itsy Bitsy 32u4 - 5V 16MHz","handle":"adafruit-itsy-bitsy-32u4-5v-16mhz","url":"/products/adafruit-itsy-bitsy-32u4-5v-16mhz","description":"The Adafruit Itsy Bitsy 32u4 5V packs the power of an Arduino Leonardo into a tiny 1.4\" × 0.7\" board. Built on the ATmega32u4 running at 5V and 16 MHz — the same speed and voltage as an Arduino Uno — it's perfect for shrinking finished prototypes into compact final builds.\n\nWith native USB, the Itsy Bitsy 32u4 can act as a USB keyboard, mouse, MIDI device, or serial port. Programmed via the Arduino IDE using the same USB bootloader as the Feather 32u4 and Leonardo, most Arduino projects work out of the box.\n\nKey Features\n\n\nATmega32u4 Microcontroller – 5V logic, 16 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\nOnboard 5V Regulator – 150 mA output, up to 16V input, with reverse-polarity and thermal protection\n\n3.3V Regulator Output – Low-current 3.3V from the chip for small sensors\n\nAutomatic Power Switching – Runs from USB or battery (VBAT pin) with seamless switchover\n\nArduino Uno Compatible – Same voltage and speed; vast Arduino project library works directly\n\nCompact Form Factor – Just 1.4\" × 0.7\" (35.6 × 17.8 mm)\n\n\nIdeal For\n\nShrinking Arduino Uno/Leonardo prototypes into compact builds\nUSB HID devices — custom keyboards, mice, and MIDI controllers\nWearable electronics and space-constrained projects\nBattery-powered builds with automatic USB/battery switching\n\n\nPackage Contents\n\n1× Adafruit Itsy Bitsy 32u4 5V 16 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":8650,"title":"Default Title","sku":"AF-3677","price":20.55,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}