Keyestudio Arduino Leonardo R3 is a microcontroller board based on the ATmega32u4 (datasheet). It is an easy-to-use open source hardware.
Keyestudio Arduino Leonardo R3 has 20 digital input/output pins (of which 7 can be used as PWM outputs) 12 analog inputs.
The Leonardo differs from other Arduino boards using separate USB-Serial chip in that the ATmega32u4 has built-in USB communication . This allows the Leonardo to appear to a connected computer as a mouse and keyboard.
![2 Keyestudio Arduino Leonardo R3 +Micro USB - Research Knowledge](https://www.why.gr/wp-content/uploads/2021/01/2-5.jpg)
Specification
![keyestudio Leonardo R3 Keyestudio Arduino Leonardo R3 +Micro USB - Research Knowledge](https://www.why.gr/wp-content/uploads/2021/01/1-5.jpg)
![functions and pins Keyestudio Arduino Leonardo R3 +Micro USB - Research Knowledge](https://www.why.gr/wp-content/uploads/2021/01/functions-and-pins.jpg)
![5 Keyestudio Arduino Leonardo R3 +Micro USB - Research Knowledge](https://www.why.gr/wp-content/uploads/2021/01/5.jpg)