8.61 €
In Stock
Compatible ATmega32u4 Arduino Leonardo Board for electronic projects
Brand: satkit
8.61€
VAT included (Ex VAT: 7.00 €)
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The Compatible ATmega32u4 Arduino Leonardo Board is an electronic board based on the ATmega32u4 microcontroller that stands out for its single-processor architecture and direct communication with the computer via native USB. This feature allows the board to act as a USB device, emulating keyboards, mice or other peripherals, thanks to the libraries integrated in the Arduino IDE.
Its main technical features include:
- ATmega32u4 microcontroller with a clock speed of 16 MHz.
- Operating voltage of 5V and recommended power supply between 7 and 12V.
- 20 digital Input/Output pins, 7 of which support PWM output.
- 12 analogue inputs with 10-bit resolution, twice that of earlier models.
- micro-USB connector for communication and power.
- Female Jack power connector and ICSP connector for advanced programming.
- Integrated reset button for easy board restart.
- 32 KB Flash memory, 3.3 KB SRAM and 1 KB EEPROM for program and data storage.
- Maximum current of 40 mA per digital pin and 50 mA for the 3.3V pin.
The pin layout is compatible with the Arduino UNO rev3, making integration into existing projects easier. It also includes SDA and SCL pins for I2C communication alongside the ARef pin.
This board is ideal for projects that require a native USB connection and the ability to emulate USB devices, as well as offering a wide number of analogue and digital inputs for sensors and actuators. Its compact and functional design makes it perfect for developers, students and electronics hobbyists looking for a compatible Arduino Leonardo board at an affordable price.
To use it, simply connect the board to your computer with a USB cable or to an external power supply within the recommended range, and start programming with the Arduino IDE using the specific libraries for the ATmega32u4.
- ATmega32u4 microcontroller with 16 MHz clock
- 20 digital I/O pins, 7 with PWM output
- 12 analogue inputs with 10-bit resolution
- Native USB port with micro-USB connector
- Compatible with Arduino Leonardo and Arduino UNO rev3
- 32 KB Flash memory, 3.3 KB SRAM and 1 KB EEPROM
- Recommended 7-12V power supply with Jack connector
- Integrated reset button for easy restart
- Supports USB device emulation such as keyboard or mouse
- Includes SDA and SCL pins for I2C communication
Customer Questions & Answers
What are the key advantages of the ATmega32u4 board compared with an Arduino UNO for projects that interact with USB devices?
The ATmega32u4 board includes native USB, allowing it to emulate USB devices such as a keyboard or mouse directly, a feature not available on Arduino UNO without additional hardware. This is especially useful when developing systems that need to communicate or interact as a USB peripheral for computers.
What external supply voltage is safe to use, and what are the limits if I connect it via the power jack?
The recommended voltage for powering the board via the jack is 7 V to 12 V. It can accept up to 20 V as the absolute maximum, although going above 12 V may cause overheating and reduce the service life of the built-in voltage regulator.
What limitations do I have when using analogue and PWM pins simultaneously on this board?
The board offers 12 analogue inputs (A0-A11) and 7 PWM outputs (pins D3, D5, D6, D9, D10, D11, D13). Due to the microcontroller architecture, resources are shared internally, but they can be used simultaneously as long as you do not exceed the maximum current per pin (40 mA) or the chip's total current limit.
Can I use 3.3 V sensors and modules directly with this board? Is there a risk of damaging the electronics?
The ATmega32u4 digital inputs correctly recognise 3.3 V signals. However, its outputs generate 5 V, so connecting devices that are only 3.3 V tolerant directly may damage them; voltage dividers or level shifters are recommended for safe bidirectional communication.
What exactly is included in the box when buying the ATmega32u4 board?
Usually, the box contains only the ATmega32u4 board compatible with Arduino Leonardo. It does not normally include a micro-USB cable, power supplies, shields or additional components unless specified in the seller's package.
Is this board compatible with Arduino IDE software?
Yes, the compatible ATmega32u4 Arduino Leonardo board works perfectly with Arduino IDE, including specific libraries for USB emulation.
How many analogue pins does this board have?
It has 12 analogue inputs, twice as many as earlier Arduino models such as the UNO.
Can I use this board to emulate a USB keyboard or mouse?
Yes, thanks to the ATmega32u4 microcontroller and its native USB port, it can act as a USB device emulating a keyboard or mouse.
What is the recommended voltage to power this board?
The recommended power supply is between 7 and 12 volts for optimal operation.
Is it compatible with shields designed for Arduino UNO?
Yes, the pin layout is compatible with Arduino UNO rev3, making it easier to use shields and accessories.
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Compatible ATmega32u4 Arduino Leonardo Board for electronic projects
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