The Leonardo R3 Board, Micro-USB compatible with Arduino, is powered by the ATmega32u4 microcontroller. Featuring 20 digital input/output pins (7 PWM outputs, 12 analog inputs), a 16 MHz crystal oscillator, micro USB connection, power jack, ICSP header, and a reset button, it’s an all-in-one solution for your projects.
With built-in USB communication, the Leonardo R3 differs from its predecessors as it doesn’t require an additional processor. Simply connect it to your computer via USB or power it using an AC-to-DC adapter or battery to start your projects.
The ATmega32u4’s unique feature allows the Leonardo to emulate a mouse and keyboard, in addition to serving as a virtual serial/COM port. This opens up various possibilities for creative applications and unique board behavior.
Pinout Diagram:

Package Includes:
1 x Leonardo R3 Board
Raspberry Pi Camera Module 3 Wide
2WD Anodized Aluminium Robot Chassis
Waveshare USB HUB HAT (B) for Raspberry Pi Series with 4x USB 2.0 Ports
PIMORONI Cooling Fan SHIM for Raspberry Pi
Waveshare 1.3inch LCD Display Module for Raspberry Pi Pico, 65K Colors, 240×240, SPI
STMICROELECTRONICS Expansion Board, VL53L5CX, NUCLEO-F401RE Development Board
40pin Prototype Pi board Prototyping Pi Plate for Raspberry Pi 3/4B
Raspberry PI IQaudio DAC Pro
Raspberry Pi GPIO Multi-function Expansion Board for PI 4B/3B/3B+
Koptan 50mm High Temperature Resistance Tape for 3D Printers
220 x 220 x 0.5mm Frosted Heated Bed Sticker Build Plate Tape with Adhesive Backing for 3D Printer
Waveshare IMX378-190 Fisheye Lens Camera for Raspberry Pi, 12.3MP, Wider Field Of View
Argon ONE M.2 Expansion Board (NVME)
HSKRC 3 Inch 140mm Carbon Fiber Racing Kit
PI ZERO/ZERO W ENC28J60 Internet Module Supporting all RPI Board
Waveshare ESP32-S3 Microcontroller, 2.4 GHz Wi-Fi Development Board, dual-core processor with frequency up to 240 MHz
WIZnet Ethernet HAT
Waveshare SX1268 LoRa HAT for Raspberry Pi 433MHz Frequency Band
Two Trees – Double Sided PEI Spring Steel Sheet (Textured+PEI) With Magnetic Base Size 235x235mm
Raspberry Pi Camera Module 3 NoIR – Wide
Waveshare 3 Channel Relay HAT Smart Home for Raspberry Pi 3
Waveshare Adapter Board for Arduino and Raspberry Pi
Raspberry Pi GPIO Expansion Board One to Three
AC90-250V ESP8266, Wireless WIFI Relay, Module 1 Channel ESP-, 12F Wifi Development, Board AC/DC 5V/7-28V/5-, 80V Power Supply
NanoPi R2S
2-Wheel Drive Rugged Robot Chassis with 37mm 37B280 Gear Motor 





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