It tells us that the frequency is 16,000,000 Hertz or 16MHz. The number printed on the top of the Arduino crystal is 16.000H9H. How does Arduino calculate time? by using a crystal oscillator. When Arduino board communicates via serial port, receive the message, RX led flashes. Onboard you can find the label: RX(receive ) When Arduino board communicates via serial port, send the message, TX led flashes.

Onboard you can find the label: TX (transmit) USB to serial chip, can convert the USB signal into serial port signal. When the pin is HIGH value, the LED is on, when the pin is LOW, it's off. There is a built-in LED driven by digital pin 13. the value used as the top of the input range).Īrduino board can be powered via USB connector.Īll you needed to do is connecting the USB port to PC using a USB cable. Used with analogReference().Ĭonfigures the reference voltage used for analog input (i.e. Reference voltage (0-5V) for analog inputs. Using pinMode(), digitalWrite(), and digitalRead() functions. Or used as digital output pin to drive different modules like LED, relay, etc. These pins can be configured as digital input pin to read the logic value (0 or 1). Here is an explanation of what every element and interface of the board does:Īrduino MEGA has 54 digital input/output pins (of which 15 can be used as PWM outputs).

Flash Memory: 256 KB of which 8 KB used by bootloader.

To facilitate wiring, a 0.5 m USB wire is provided for you.

We can power on by USB wire, DC head and Vin GND pins. This chip is burnt the firmware well before leaving the factory, therefore, we hardly use it. The built-in ICSP port can burn the firmware for ATMEGA2560-16AU directly. It has 54 digital input/output pins (of which 15 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, 1 ICSP header, and a reset button. Keyestudio Mega 2560 R3 is a microcontroller board based on the ATMEGA2560-16AU, fully compatible with ARDUINO MEGA 2560 R3. 6.3 How to Install the Driver of CP2102.

Driver for arduino mega 2560