Practical C Programming

Introduction to Arduino

Arduino is an architecture that includes the Atmel microcontroller family along with standard hardware. The pin diagram of Arduino is as follows:

Arduino includes 14 digital pins that can operate with 5V:

• Pins 0 (RXD) and 1 (TXD) are the serial pins used to transfer TTL serial data.
• Pins 2 and 3 are the external interrupt pins used to activate an interrupt.
• Pins 3, 5, 6, 9, 10, and 11 are used to provide the PWM output.
• Pins 10, 11, 12, and 13 are SPI pins (short for the Serial Peripheral Interface). Named SS, MOSI, MISO, and SCK, these pins are used for SPI communication.
• Pin 13 is an LED pin. A HIGH digital value, ...