The number of digital inputs and outputs is 20, and the analog inputs are 12. The board’s power supply is standard for Arduino, with a recommended voltage of 7-12 volts. You can find two dozen inputs and outputs, a micro-USB connector, a reset button as well as ICSP connectors, and power input. The board itself looks pretty much like Uno. We can’t say that this board can replace Uno, but it can become the basis for new, very interesting, and unusual projects with its unique features.Īt the core of Leonardo is a quite advanced ATmega32u4 microcontroller. It is treated by the computer as a standard HID device and can directly send the desired control signals. The Arduino Leonardo board greatly expands the possibilities for connecting Arduino to the computer. For example, the cursor – you have to install an application on the computer itself, which will interpret the codes from the serial port and set the cursor in the right place. You can’t just connect a regular joystick through the Arduino Uno to the computer and control it. The Arduino platform allows you to create a wide variety of autonomous devices, but when you connect traditional boards Uno, Nano, Mega, it was impossible to make them work as usual peripherals – for example, mice or keyboards. 4 Comparison with Arduino Uno, Nano, Mega Description of the Arduino Leonardo Board
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