What kind of inputs does the Arduino Leonardo have?

What kind of inputs does the Arduino Leonardo have?

The Arduino Leonardo is a microcontroller board based on the ATmega32u4 ( datasheet ). It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button.

How does the reset button on the Leonardo Arduino work?

Rather than requiring a physical press of the reset button before an upload, the Leonardo is designed in a way that allows it to be reset by software running on a connected computer. The reset is triggered when the Leonardo’s virtual (CDC) serial / COM port is opened at 1200 baud and then closed.

Can a Leonardo microcontroller communicate with a computer?

The Leonardo has a number of facilities for communicating with a computer, another Arduino, or other microcontrollers. The ATmega32U4 provides UART TTL (5V) serial communication, which is available on digital pins 0 (RX) and 1 (TX).

What kind of bootloader does the Arduino Leonardo use?

The ATmega32U4 on the Arduino Leonardo comes preburned with a bootloader that allows you to upload new code to it without the use of an external hardware programmer. It communicates using the AVR109 protocol.

Do you need an Arduino board for a HID keyboard?

The Leonardo board is equivalent to a standard HID (Human Interface Device Class) USB keyboard. A computer with Arduino IDE version 1.6 or higher installed. An Arduino board with HID USB keyboard support is required. Some hardware components and tools. (Described in next chapters).

How to connect a Bluetooth keyboard to an Arduino?

Keyboard Ps2. Bluetooth module HC-05. Jumpers. Following is the pin-out of the Connector. There are 4 wires coming from the keyboard and their connections to arduino Digital pins are as follows. PS2 connector – Arduino One Downlad the Ps2Keyboard and import to the new sketch. #include

How does a keyboard pedal work on Arduino?

The Arduino sketch below sends a [Page Down] keyboard keystroke by pressing the pedal with your foot on digital pin 2. An optional second pedal can be connected to GND and digital pin 3 to send a [Page Up] key. Connect a (micro) USB cable between the Arduino Leonardo board and your computer.

How can I make software on the Arduino Leonardo?

Software developing on the Arduino Leonardo can be done by programming it through the Arduino IDE. Under the Tools > Board menu, select Arduino Leonardo. The ATmega32u4 microcontroller allows you to upload new code to it without an external hardware programmer as it comes with a bootloader.

How to upload Blink sketch to Arduino Leonardo?

We will work on the new Arduino IDE with Blink sketch. You can click the upload icon, Arduino IDE will compile the sketch and upload into Arduino Leonardo connected to your computer (if there is no error), further run the sketch on Arduino Leonardo. You will just have to wait until the message box say Upload Done and look at the Arduino Leonardo.