The Arduino Leonardo is a microcontroller board based on the ATmega32U4. It has 23 digital input/output pins (of which 7 can be used as PWM outputs
KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project : Electronics
Arduino Leonardo Pinout
Arduino Leonardo – Interrupts
Arduino Leonardo - ElectroPeak
Arduino Leonardo without Headers — Arduino Official Store
Arduino Leonardo vs Uno Key Differences of Arduino Leonardo vs Uno
Arduino Leonardo – what is it and where can it be used - PCBA Manufacturers
Classic Straight USB Cable suitable for the Arduino Leonardo with Power Hot Sync and Charge Capabilities
Arduino Leonardo: Specifications,Documentation and FAQs
Arduino Leonardo – Tesla Electronics
Dr. Monk's DIY Electronics Blog: Arduino Leonardo vs. Arduino Uno
