Arduino Uno is a complete development board of microcontroller ATmega328. It is the most commonly used Arduino because of compact size, a number of input-output pins, price, availability, etc. It has 14 Digital input-output pins in which 6 pins provide PWM outputs and 6 Analog output pins. It has everything that a general Arduino based project needs.
Basics Components on Arduino Uno Board:
- 14 Digital and 6 Analog output pins
- A crystal oscillator of 16 MHz to provide the 16MHz clock speed
- To power, it has a USB connection and a power jack
- ICSP header and
- A reset button to upload new or reload the program
Specification
- Input voltage: 5v to 24V
- DC current fo I/O pins: 40mA
- DC current for 3.3V I/O pins: 50mA
- Analog input-output pins: 14 in which 6 is PWM pins
- Digital input-output pins: 6
- Flash memory: 32KB
- Memory used by bootloader: 0.5KB
- SRAM: 2 KB
- EEPROM: 1 KB
- Speed: 16MHz
- Microcontroller: ATmega328
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