This product is no longer available
We no longer stock Arduino Leonardo ATmega32u4 with headers, but here are current alternatives in Arduino Education.
Arduino Leonardo ATmega32u4 with headers
Discontinued
The Arduino Leonardo is a microcontroller board based on the ATmega32U4, featuring built-in USB communication that allows it to appear as a keyboard, mouse, or serial device to a connected computer — no secondary USB chip required. This version comes with all headers pre-soldered for easy breadboard and shield use.
With 20 digital I/O pins (7 PWM, 12 analog inputs), a 16MHz crystal oscillator, micro USB connection, power jack, and ICSP header, the Leonardo contains everything needed to get started. Also available without headers for a thinner, more compact option.
Key Features
- Native USB – Built-in USB on the ATmega32U4 enables keyboard, mouse, and serial device emulation
- Pre-Soldered Headers – Ready for immediate use with breadboards and compatible shields
- 20 Digital I/O Pins – 7 usable as PWM outputs, with 40mA per pin
- 12 Analog Inputs – 10-bit resolution on pins A0–A11
- Multiple Power Options – Micro USB, DC power jack (7–12V), or VIN pin header
Specifications
- Microcontroller – ATmega32U4
- Operating Voltage – 5V
- Input Voltage – 7–12V recommended
- Digital I/O Pins – 20
- PWM Channels – 7
- Analog Input Channels – 12
- Flash Memory – 32KB (4KB used by bootloader)
- SRAM – 2.5KB
- EEPROM – 1KB
- Clock Speed – 16MHz
Ideal For
- USB HID projects (custom keyboards, mice, game controllers)
- Interactive installations and MIDI controllers
- General-purpose electronics prototyping
Package Contents
- 1× Arduino Leonardo ATmega32U4 (with headers)
