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Arduino Pin Diagram

Arduino Pin Configuration
Ardunio Uno R3 pin diagram

Arduino UNO R3 – Input and Output

Every of the 14 advanced pins on the Arduino Uno camwood make utilized. Likewise a enter or output, utilizing pinMode(), digitalWrite(), also digitalRead() works. They work In 5 volts. Each pin camwood provide alternately get a greatest about 40. As a result, need a internal pull-up resistor (disconnected Eventually Tom’s perusing default) about 20-50 KOhms. In addition, a few pins bring particular works.

Serial Pins

Pins 0 (RX) What’s more 1 (TX). here it used to accept (RX). Furthermore transmit (TX) TTL serial information. These pins need aid associated with the comparing pins of the ATmega8U2 USB-to-TTL serial chip.

External Interrupts

Pins 2 What’s more 3. These pins camwood be arranged should trigger a intrude for An low value, An climbing alternately tumbling edge, alternately An change over esteem. View the attachInterrupt() capacity to subtle elements.


3, 5, 6, 9, 10, What’s more 11. Give acceptable 8-bit PWM yield with those analogWrite() capacity.


10 (SS), 11 (MOSI), 12 (MISO), 13 (SCK). These pins support SPI communication using the SPI library.


13. There is an inherent headed associate with advance pin 13. consequently at the pin may be helter skelter value. The header may be on, at those pin is LOW, it’s off. Those Uno’ are need 6 simple inputs, mark A0 through A5. Every from is claiming which give 10 odds for determination (i. E. 1024 diverse values). Eventually, Tom’s perusing default they measure from ground with 5 volts. It is allowed to change the upper conclusion for their extent utilizing the AREF pin. The analogReference() is work accordingly. But, however,  in each device pins are allocate for particular purpose.


A4 or SDA pin What’s more A5 or SCL pin. Backing TWI correspondence utilizing the Wire library.  There might a few over distinctive pins on the board.


Reference voltage for the simple inputs. Utilized for analogReference().


Above all, achieve this accordance low with reset the microcontroller. Normally use to include a reset catch will shields. During which square the you quit offering on that one on the table.

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