This pin is used for pin change interrupt.
#Arduino uno pinout schematic serial#
Two controller communication, pc and controller communication, debugging with usart by serial monitor. It is used with serialBegin() to set baud rate setting and start communication with serial.Println() to print array of char on other device output. This pin is used for serial usart communication with pc or other system for data sharing and logging.
Input devices: Ntc thermistor, sensors (like ldr, irled and humidity) and others It can be used by pinMode() for pin direction, analogRead() to read pin status and get digital value for analog signal, care must be taken for internal or external reference voltage selection and Aref pin.
#Arduino uno pinout schematic software#
It is usually used for very complex projects.Īrduino Mega 2560 is also packed with additional features like Analog Comparator, External Interrupt & Software Interrupt, Power Saving Mode, Inbuilt Temperature Sensor, RTC and more. The Arduino Mega 2560 is a replacement of the old Arduino Mega, and so in general reference, it will be called without the ‘2560’ extension. It supports ICSP as well as USB microcontroller programming with PC. It is also compatible with different type of boards like high-level signal (5V) or low-level signal (3.3V) with I/O ref pin.īrownout and watchdog help to make system more reliable and robust. With large FLASH memory and SRAM, this board can handle large system program with ease. Other features include JTAG support for programming, debugging and troubleshooting. It has more than 5 pins for Vcc and Gnd to connect other devices to Arduino Mega. Secondly, it has inbuilt RTC and other features like analog comparator, advanced timer, interrupt for controller wakeup mechanism to save more power and fast speed with 16 Mhz crystal clock to get 16 MIBS.
First feature is the large I/O system design with inbuilt 16 analog transducers and 54 digital transducers that supports with USART and other communication modes. When cheaper boards are available, why go with Arduino Mega? The main reason behind this is the additional features that are inbuilt with this board.