It can run off an external power between 7 and 12 volts. Power Jack: The Arduino can be powered from a computer through USB or from an outside source, such as an adaptor or a battery. The Arduino Uno has 6 analogue inputs, a 16 MHz crystal oscillator, 14 digital input/output pins, 6 of which can be used as PWM outputs, a USB port, a power jack, an ICSP header, and a reset button. It is an ATmega328 microprocessor with 28 pins. PIN DIAGRAM Arduino Uno is a popular illustration of an Arduino board. The Atmega328 runs at a clock speed of 16MHz and features 32 KB of flash memory for code storage (of which 0.5 KB is needed for the bootloader), 2 KB of SRAM, and 1 KB of EEPROM. There are two memories in it: a programme memory and a data memory.The data is kept in the data memory, but the code is kept in the flash programme memory. ARCHITECTURE OF ARDUINO The Harvard design, which has separate memory for the programme code and programme data, is essentially what the Arduino processor employs. It is mostly used for communications and for operating a variety of devices.
INTRODUCTION OF ARDUINO An Arduino is essentially a microcontroller-based kit that, owing to its open source hardware feature, may either be produced at home using the components or purchased straight from the seller and used right away.
