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Arduino Leonardo R3


Arduino Leonardo R3 development board with an ATmega32U4 microcontroller, native USB communication, 20 digital I/O pins, seven PWM outputs, 12 analog input channels and a 16MHz clock. Suitable for USB keyboard or mouse interfaces, robotics, automation and embedded-learning projects.

 1,599  1,820

Arduino Leonardo R3 Price in Pakistan

The Arduino Leonardo R3 is based on the ATmega32U4 microcontroller. Unlike boards that use a separate USB-to-serial controller, the ATmega32U4 provides native USB communication. This allows compatible sketches to present the board to a computer as a keyboard, mouse or serial device.

Key specifications

  • Microcontroller: ATmega32U4
  • Operating voltage: 5V
  • Recommended input voltage: 7V to 12V
  • 20 digital input/output pins
  • Seven PWM-capable outputs
  • 12 analog input channels
  • 32KB flash memory, 2.5KB SRAM and 1KB EEPROM
  • 16MHz clock
  • Native USB communication through the micro USB connection

Suitable applications

  • USB keyboard and mouse controller projects
  • Custom USB interfaces
  • Robotics, automation and sensor systems
  • Educational programming and embedded prototypes

Compatibility guidance

The Leonardo differs from the UNO in its USB implementation and some pin assignments. Confirm shield pin use and library compatibility before assembly. Use a compatible micro USB data cable; a power-only cable cannot upload sketches.

For breadboard connections, pair the board with male-to-male jumper wires and a GL-12 solderless breadboard.

Explore more Arduino development boards from Robonation Pakistan. For authoritative specifications and setup guidance, review the official Arduino Leonardo documentation.

Frequently Asked Questions

Which microcontroller is used by the Arduino Leonardo R3?

The Leonardo is based on the ATmega32U4 microcontroller.

Why is the Leonardo useful for USB projects?

The ATmega32U4 includes native USB capability, allowing supported sketches to emulate devices such as a keyboard or mouse.

How many input and output pins does the Leonardo provide?

The board provides 20 digital I/O pins, with seven PWM-capable outputs, plus 12 analog-input channels.

Which USB cable is required for an Arduino Leonardo R3?

The listed board uses a micro USB connection. Use a compatible data cable, and note that a cable is not included unless the product listing specifically states otherwise.

Is the Arduino Leonardo pin layout identical to the UNO?

No. The boards differ in USB implementation and some pin assignments. Verify shield pin use and library compatibility before connecting UNO-oriented accessories.

SKU: ARD-452 Categories: ,

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