Arduino Leonardo
Best versatile microcontroller for creators building custom computer input devices.
A versatile development board that simplifies USB integration by acting as a native device. It is an excellent choice for projects requiring keyboard or mouse emulation without complex external hardware.
$23.80
at
Arduino
Who it's for
- Makers building custom computer peripherals or gaming controllers
- Intermediate hobbyists requiring more versatile pin configurations for advanced projects
- Developers seeking efficient data transfer between the board and PC
Who should skip it
- Users with a large collection of legacy Arduino Uno shields
- Programmers who rely on stable, uninterrupted serial monitoring during development
- Rapid prototypers who find small delays in the upload cycle frustrating
Performance breakdown
HID Emulation Capability
Native USB support makes keyboard and mouse simulation incredibly seamless.
Prototyping Readiness
Pre-soldered headers allow you to start building circuits immediately.
I/O Versatility
Generous analog and digital pin counts handle complex sensor arrays easily.
Software Compatibility
Standard Arduino IDE support ensures a frictionless coding and upload experience.
Processing Power
The ATmega32u4 is reliable but limited for heavy computational tasks.
Circuit Protection
Integrated USB over-current protection adds a vital layer of hardware safety.
Key Specs
Microcontroller
ATmega32u4
Operating Voltage
5V
Input Voltage (recommended)
7-12V
Digital I/O Pins
20
PWM Channels
7
Analog Input Channels
12
Flash Memory
32 KB
SRAM
2.5 KB
Clock Speed
16 MHz
Connectivity
USB
Know before you buy
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