Arduino 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.

arduino pin diagram

Serial Pins

In Arduino, 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 in Arduino

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. In the Arduino, 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 in the Arduino. 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.

arduino pin diagram


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().

Arduino Reset

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


  • I’m really impressed with your writing skills and also with the layout on your weblog.
    Is this a paid theme or did you modify it yourself?
    Either way keep up the excellent quality writing, it’s rare to see a nice blog like this one today.

  • Tracyfug


    Where I can download XEvil for free on your website?
    Got information from your Support. XEvil is really the best program for captcha solving, but I need latest version of it.


Leave a Reply

Your email address will not be published. Required fields are marked *