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Arduino Leonardo R3 Compatible Board
Build USB-native projects with this Arduino Leonardo R3 compatible board featuring the ATmega32U4 microcontroller with built-in USB communication. Unlike other Arduino boards, the Leonardo eliminates the need for a secondary processor, allowing it to appear as a mouse, keyboard, or joystick to a connected computer. Available now from The Engineer Store, Bengaluru with fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Board Type | Arduino Leonardo R3 Compatible |
| Microcontroller | ATmega32U4 |
| Operating Voltage | 5V |
| Input Voltage (Recommended) | 7-12V |
| Input Voltage (Limit) | 6-20V |
| Digital I/O Pins | 20 (7 PWM capable) |
| Analog Input Pins | 12 |
| DC Current per I/O Pin | 40 mA |
| DC Current for 3.3V Pin | 50 mA |
| Flash Memory | 32 KB (4 KB used by bootloader) |
| SRAM | 2.5 KB |
| EEPROM | 1 KB |
| Clock Speed | 16 MHz |
| USB Connector | Micro-USB |
| USB Communication | Built-in USB (HID device capable) |
| Length | 68.6 mm |
| Width | 53.3 mm |
| Weight | ~20 g |
| Compatibility | Arduino IDE, shields, and libraries |
| Origin | High-quality compatible board |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Why Choose the Arduino Leonardo R3 Compatible Board?
- Native USB Communication: ATmega32U4 handles USB directly - emulate a keyboard, mouse, joystick, or MIDI controller without additional hardware
- More Analog Inputs: 12 analog input channels compared to 6 on the Uno, ideal for sensor-heavy projects
- 20 Digital I/O Pins: 7 PWM outputs and 12 analog inputs give you maximum flexibility for complex designs
- Full Arduino IDE Compatibility: Program using the familiar Arduino IDE with access to thousands of libraries and community resources
- Shield Compatible: Standard Arduino R3 form factor supports most existing Arduino shields and accessories
- Micro-USB Connector: Modern, widely available connector for programming and power delivery
- Cost-Effective: High-quality compatible board delivering identical performance at an accessible price point
- Reliable Quality: Tested and verified for consistent performance across all pins and peripherals
- Fast 1-5 days shipping: Ships from our Bengaluru warehouse to most locations across India
- Expert Technical Support: Dedicated assistance via email and WhatsApp for your projects
Key Features Explained
- Built-in USB HID: The ATmega32U4 appears as a native USB device to your computer, enabling you to send keystrokes, mouse movements, and gamepad inputs directly - no external chips or drivers required
- Separate USB and Serial: The Leonardo provides a virtual serial port over USB for programming and debugging while keeping hardware serial (pins 0 and 1) free for communication with other devices like GPS modules or Bluetooth
- 12 Analog Channels: Pins A0-A11 provide 10-bit analog-to-digital conversion, with some analog inputs mapped to digital pins (D4, D6, D8, D9, D10, D12) for versatile sensor integration
- PWM Outputs: Seven pins support pulse-width modulation for motor speed control, LED dimming, servo control, and audio generation
- SPI and I2C Support: Dedicated SPI header and I2C (TWI) on pins 2 (SDA) and 3 (SCL) for connecting displays, sensors, memory modules, and other peripherals
- External Interrupts: Five interrupt pins (0, 1, 2, 3, 7) for responsive real-time event handling in time-critical applications
Project Ideas
- Custom USB Keyboard/Macropad: Build a programmable keyboard, shortcut pad, or stream deck with custom key mappings using the Leonardo's native HID capabilities
- USB Game Controller: Design your own joystick, flight stick, racing wheel, or arcade controller that connects directly as a standard gamepad
- MIDI Controller: Create custom MIDI instruments
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy Arduino Leonardo R3 compatible board Online in India
Purchase the Arduino Leonardo R3 compatible board online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Arduino Leonardo R3 compatible board with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy Arduino Leonardo R3 compatible board at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
Arduino Leonardo R3 Compatible Board
Build USB-native projects with this Arduino Leonardo R3 compatible board featuring the ATmega32U4 microcontroller with built-in USB communication. Unlike other Arduino boards, the Leonardo eliminates the need for a secondary processor, allowing it to appear as a mouse, keyboard, or joystick to a connected computer. Available now from The Engineer Store, Bengaluru with fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Board Type | Arduino Leonardo R3 Compatible |
| Microcontroller | ATmega32U4 |
| Operating Voltage | 5V |
| Input Voltage (Recommended) | 7-12V |
| Input Voltage (Limit) | 6-20V |
| Digital I/O Pins | 20 (7 PWM capable) |
| Analog Input Pins | 12 |
| DC Current per I/O Pin | 40 mA |
| DC Current for 3.3V Pin | 50 mA |
| Flash Memory | 32 KB (4 KB used by bootloader) |
| SRAM | 2.5 KB |
| EEPROM | 1 KB |
| Clock Speed | 16 MHz |
| USB Connector | Micro-USB |
| USB Communication | Built-in USB (HID device capable) |
| Length | 68.6 mm |
| Width | 53.3 mm |
| Weight | ~20 g |
| Compatibility | Arduino IDE, shields, and libraries |
| Origin | High-quality compatible board |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Why Choose the Arduino Leonardo R3 Compatible Board?
- Native USB Communication: ATmega32U4 handles USB directly - emulate a keyboard, mouse, joystick, or MIDI controller without additional hardware
- More Analog Inputs: 12 analog input channels compared to 6 on the Uno, ideal for sensor-heavy projects
- 20 Digital I/O Pins: 7 PWM outputs and 12 analog inputs give you maximum flexibility for complex designs
- Full Arduino IDE Compatibility: Program using the familiar Arduino IDE with access to thousands of libraries and community resources
- Shield Compatible: Standard Arduino R3 form factor supports most existing Arduino shields and accessories
- Micro-USB Connector: Modern, widely available connector for programming and power delivery
- Cost-Effective: High-quality compatible board delivering identical performance at an accessible price point
- Reliable Quality: Tested and verified for consistent performance across all pins and peripherals
- Fast 1-5 days shipping: Ships from our Bengaluru warehouse to most locations across India
- Expert Technical Support: Dedicated assistance via email and WhatsApp for your projects
Key Features Explained
- Built-in USB HID: The ATmega32U4 appears as a native USB device to your computer, enabling you to send keystrokes, mouse movements, and gamepad inputs directly - no external chips or drivers required
- Separate USB and Serial: The Leonardo provides a virtual serial port over USB for programming and debugging while keeping hardware serial (pins 0 and 1) free for communication with other devices like GPS modules or Bluetooth
- 12 Analog Channels: Pins A0-A11 provide 10-bit analog-to-digital conversion, with some analog inputs mapped to digital pins (D4, D6, D8, D9, D10, D12) for versatile sensor integration
- PWM Outputs: Seven pins support pulse-width modulation for motor speed control, LED dimming, servo control, and audio generation
- SPI and I2C Support: Dedicated SPI header and I2C (TWI) on pins 2 (SDA) and 3 (SCL) for connecting displays, sensors, memory modules, and other peripherals
- External Interrupts: Five interrupt pins (0, 1, 2, 3, 7) for responsive real-time event handling in time-critical applications
Project Ideas
- Custom USB Keyboard/Macropad: Build a programmable keyboard, shortcut pad, or stream deck with custom key mappings using the Leonardo's native HID capabilities
- USB Game Controller: Design your own joystick, flight stick, racing wheel, or arcade controller that connects directly as a standard gamepad
- MIDI Controller: Create custom MIDI instruments
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy Arduino Leonardo R3 compatible board Online in India
Purchase the Arduino Leonardo R3 compatible board online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Arduino Leonardo R3 compatible board with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy Arduino Leonardo R3 compatible board at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.