Adafruit Itsy Bitsy 32U4 | Maker Minute
The Adafruit Itsy Bitsy 32U4 is an Arduino-compatible board in a tiny form factor. The Itsy Bitsy measures just 1.4” x 0.7” and is based on the same ATmega32U4 as the Arduino Leonardo, with 2 kB of RAM and 28 KB of Flash. The Itsy Bitsy is available in a 5 V, 16 MHz version and a 3.3 V, 5 MHz version. Both versions have an on-board regulator and can be powered from the USB port or an external input into the VBAT pin, with automatic switching between supplies. Even with its compact form factor, the Itsy Bitsy 32U4 offers 23 total GPIOs, including 6 analog inputs, serial interfaces, and 4 GPIOs with PWM functionality.
Part List
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
![]() | ![]() | 3677 | ITSY BITSY 32U4 5V 16MHZ EVAL BD | 542 - Immediate | $8.59 | View Details |
![]() | ![]() | 3675 | ITSY BITSY 32U4 3V 8MHZ EVAL BRD | 102 - Immediate | $8.59 | View Details |





