Arduino Leonardo

Arduino Leonardo is one of the most popular versions of the series. The board contains an ATmega32u4 microcontroller with 20 digital inputs/outputs, 7 of which can be used as PWM outputs (eg to control motors) and 12 as analog inputs. The system operates with a 16 MHz clock signal, has 32 kB Flash program memory and 2.5 kB SRAM operational memory.

Features:

• Bootloader: With bootloader installed, all you need to program your device is the appropriate microUSB cable and software from the manufacturer's website.
• Arduino shield: the layout of the connectors allows for the installation of dedicated shields, so-called. Arduino board.
• Digital Pins: 20 digital inputs/outputs allow, among other things, to control LEDs, relays and read button states.
• Current Efficiency: Maximum single pin current efficiency is 40mA.
• PWM outputs: 7 PWM outputs allow, for example, to control motors and adjust the brightness of diodes.
• Analog inputs: 12 integrated analog-to-digital converter inputs with 10-bit resolution support, including: sensors with analog output.
• Serial Communication: The device supports popular communication interfaces including: UART, I2C, SPI and USB.
• Special Features: Some pins have special features, a brief description of which can be found in our guide.
• Integrated memory: Atmega32u4 system operates at 16 MHz signal, has 32 kB Flash program memory, 1 kB EEPROM and 2.5 kB SRAM operating memory.
• Power Supply DC Connector: You can use any 7V to 12V power supply with a 5.5x2.1mm DC connector to power the Arduino.
• Power source USB port: The board can be powered from a computer via a microUSB cable, keeping in mind that the maximum current efficiency of the USB port is 500 mA. The Arduino has a system that protects the socket from short circuits and excessive current flow.
• ICSP connector: The module has ICSP pins for connecting an external AVR programmer.
• IOREF Pin: The IOREF pin allows direct access to the voltage at which the I/O pins operate.
• Integrated LED: An integrated LED on pin 13 allows simple program debugging.
• 3.3V output: the built-in voltage regulator allows you to power external devices with 3.3V with a current consumption of up to 50 mA.

Specifications:

• Supply voltage: from 7V to 12V
• Model: Arduino Leonardo - A000057
• Microcontroller: ATmega32u4
• - Maximum clock frequency: 16 MHz
• - SRAM memory: 2.5 kB
• - Flash memory: 32 kB (4 kB reserved for bootloader)
• - EEPROM memory: 1 kB
• I/O Ports: 20
• PWM outputs: 7
• Number of analog inputs: 12 (A/D converter channels with 10-bit resolution)
• Serial interfaces: UART, SPI, I2C, USB
• External interrupts
• The LED is connected to pin 13
• MicroUSB slot for programming
• 5.5x2.1mm DC connector for power supply

More information

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