Arduino uno pin diagram. For details on how to use these pins .
Arduino uno pin diagram Understand the functions and connections of each pin for better utilization and integration into your projects. We will delve into the essential details and functionalities of the different pins, connectors, and components, providing a comprehensive understanding of their roles and capabilities. Mar 4, 2024 · Arduino UNO R4 Pinout Since the UNO R4 is identical to all UNO boards in terms of the form factor and pin layout, there is not a huge difference in the pinout as far as the R3 is concerned. But for those who understand the structure and secrets they contain, wiring diagrams become more than just a document Aug 17, 2024 · Arduino Uno Vs Nano Vs Mega, Description: Arduino Uno Vs Nano Vs Mega- In this article we will compare Arduino Uno with Arduino Nano and with Arduino Mega. Although R4 Minima and WiFi have a slight difference in their pinouts. - Specifications for power supply including maximum current draw per pin and for the entire board. Anybody who has worked on Arduino will know that is a small board consisting of multiple components like ICs, and USB which are interconnected to form a whole connection. These pins serve different purposes, including digital input/output, analog input, power supply, and communication. The document provides an overview of Arduino, detailing its architecture, pin configurations, and features of the Atmega 328 microcontroller. The multiplexing function of the pins provides more different options, such as driving motors, LEDs, reading sensors, etc. The pin specifications of the Arduino UNO Board are as follows: ATmega328 Microcontroller The ATmega328 Microcontroller belongs to the ATmel family and is a single-chip microcontroller. Arduino Nano Pinout Configuration Explore the pin configuration and layout of the Arduino Uno R3 through this comprehensive pinout diagram. An ATmega328P microcontroller serves as the foundation for the Arduino UNO, a standard board for the software maker. These pins can be used to connect sensors, servos, LEDs, and many other components to the Arduino. D12 PE1 D11 PE0 ~D9 ~D10 PB0 D8 PE3 D7 PA1 ~D6 PF4 ~D5 PB2 D4 PC6 ~D3 PF5 D2 D1/TX D0/RX Dec 25, 2020 · The Arduino Uno R3 circuit diagram is straightforward to follow, with all the necessary components listed and highlighted. The recommended voltage range is Get the complete wiring diagram for Arduino Uno. Starting clockwise from the top center: Analog Reference pin (orange) Digital Ground (light green) Digital Pins 2-13 (green) Digital Pins 0-1/Serial In/Out - TX/RX (dark green) - These pins cannot be used for Nov 19, 2024 · It comes in two versions - one consists of a 28-pin DIP package microcontroller while the other one consists of a 32-pin quad flat package microcontroller. How pin works? Pin functions comparison. Jan 10, 2019 · Arduino UNO Pinout Description The Arduino UNO board is divided into digital, analog, and power pins. These pins serve as the interface between the Arduino Uno microcontroller and external devices or components. txt) or read online for free. Aug 2, 2023 · The Arduino Uno R3 schematic is a detailed diagram of the components that are used to build the board. For details on how to use these pins Oct 7, 2025 · Looking at the board from the top down, this is an outline of what you will see (parts of the board you might interact with in the course of normal use are highlighted): The Arduino UNO. Arduino also manufactured IoT (internet of things), Bluetooth, GSM/3G, Wi-Fi, and motion sensors boards. It has 14 digital input/output pins (6 can provide PWM output), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, power jack, ICSP header, and a reset button Apr 8, 2024 · Here’s a complete pinout of the Arduino Uno or Arduino UNO Pin Diagram, with their functions – Digital Pins (0-13): These pins can function as either inputs or outputs. It is a visual representation of the basic components of an Arduino Uno board, and is used to help identify which elements are needed for each project. Learn about the pin diagram of Arduino Uno, which uses the Atmega328P microcontroller. Two sections at the bottom of the image, and one at the top. Each pin operates at 5V and can provide or receive a maximum of 40mA current, and each pin also has an internal pull-up resistor of 20-50 KOhms which are disconnected by default. Secondary pins are mostly communications pins such as I2C and SPI. This is the latest third version of an Arduino board and released in the year 2011. 5 cms to 1. ~3). It outlines the connections between the chips, resistors, capacitors, diodes, and more that come together to make the board work. By referring to this pinout diagram, you can easily identify the specific pin numbers, labels, functions, and types of the various pins on the Arduino Uno R3. Conclusion The Arduino Uno diagram is a crucial tool for understanding how the various components of the Arduino Uno board work together to create a functioning microcontroller. We’ve created a well explained, diagram based pin out representation of Arduino Nano. The analog pins are used to read in analog signals from sensors or other components, while the digital pins are used to output digital signals. Feb 13, 2023 · The Arduino Uno Diagram is an essential tool for any amateur or professional hobbyist. It explains power supply methods (Barrel Jack, VIN pin, USB), pin functions (digital, analog, PWM), and key concepts such . The document provides information about the pin layout of an Arduino Uno board, including: - A chart labeling each pin of the microcontroller and its corresponding Arduino pin number and functions like analog/digital input/output, PWM, serial communication. Mar 14, 2024 · The Arduino UNO with long pins is the a version of the UNO, Arduinos classic board, with longer pins for you to stack the board on top of any carrier circuit. The pin configuration in Grbl provides flexibility and compatibility to interface with a wide range of devices. It is easier to use than other types of Arduino Boards. Download Arduino Uno R3 Schematic PDF and learn how to understand the circuit diagram of Arduino Uno R3 for DIY projects and troubleshooting. Compared to other types of Arduino Boards, it is simpler to use. The Arduino Uno is a microcontroller board based on the ATmega328P chip. The Customer must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined. Jun 10, 2019 · The Arduino NANO is a smaller, breadboard-friendlier version of the Arduino UNO. Starting clockwise from the top center: Analog Reference pin (orange) Digital Ground (light green) Digital Pins 2-13 (green) Digital Pins 0-1/Serial In/Out - TX/RX (dark green) - These pins cannot be used for Arduino Uno R3 Pin Diagram: An Overview of the Board’s Pin Configuration The Arduino Uno R3 is a popular microcontroller board used in a wide range of projects. Sep 10, 2024 · Learn about the Arduino UNO board, its layout, specifications and pinout. By familiarizing oneself with this diagram, users can confidently utilize the Arduino Uno’s pins to interface with various components and create exciting projects. Overall Pin Structure The Arduino Uno board features a well-structured pin layout, consisting of several groups of pins, each serving a distinct purpose. Here is a list of all the components Arduino Board Analog Reference pin Digital Ground Digital Pins 2-13 Digital Pins 0-1/Serial In/Out - TX/RX Reset Comparing Pin Configurations: Arduino Uno vs ESP32 In this section, we delve into the intricate details of the pin layouts of two popular microcontroller boards, exploring their respective arrangements, functionalities, and compatibilities. Arduino Nano Pinout vs Uno: What's the Difference?When it comes to the world of microcontrollers, one cannot overlook the immense popularity and versatility offered by Arduino boards. Why have you selected Arduino Uno and Apr 4, 2018 · ATMEGA328P is high performance, low power controller from Microchip. The reason I am writing this article, is to explain some of the most commonly asked questions. Aug 17, 2023 · The Arduino Uno board has 14 digital I/O pins, 6 Analog Pins, 4 Power Pins, 1 Reset Pin, and ICSP Header. Feb 8, 2024 · The pinout for the ATmega328P, the microcontroller used for Arduino UNO. It’s built around the ATmega328P microcontroller and offers a user-friendly interface, making it an ideal choice for beginners and advanced users alike. Summary Curious about what the Arduino Uno can do? Check out our blog for more details! Join our interactive course, which will take you from a fundamental understanding of the Arduino Uno and its pin diagram to grasping its functionality arduino project or arduino projects,arduino uno projects,arduino project hub. 8 cms (L to B). We will go through all the details including the Pinout, technical specifications, and the size difference. Pin 13 LED The only actuator built-in to your board. See the diagram and explanations of each pin function and capability. In conclusion, the pinout diagram and functionality of the Arduino Uno R3 play a crucial role in understanding and utilizing the board effectively. Uncover the potential of your microcontroller board with detailed pin configuration and usage information. Jul 14, 2020 · Learn about the pin configuration of Arduino and how they work in this simple detailed blog. Explore an in-depth pinout diagram and technical insights for the Arduino Uno R3. Nov 2, 2022 · Arduino Uno Pin Diagram Pdf: A Comprehensive Guide for Beginners The Arduino Uno is a revolutionary microcontroller that has enabled millions of people to learn about physical computing and become makers. The main advantage of this board is if we make a mistake we can change the microcontroller on the board. The product By knowing the capabilities and limitations of each pin, you can effectively design and implement systems that involve input, output, communication, and power requirements. Arduino Uno is a standard board of the company, even though other boards e, g. These pins can be used to monitor various environmental conditions, such as temperature, light intensity, and sound levels. It features a simple and easy-to-understand pin diagram that allows users to connect various components and peripherals to the board for creating interactive projects. Arduino Nano Pinout The Arduino Nano, as the name suggests is a compact, complete and bread-board friendly microcontroller board. We will describe functions of Allows the communication between devices or sensors connected via Two Wire Interface Bus. This Arduino NANO Pinout diagram reference is a handy guide for using this board. Learn how to create a circuit diagram for Arduino Uno, one of the most popular microcontrollers for DIY electronics projects. Explore the various Nov 28, 2020 · Arduino UNO Pinout and Board description I will explain the description of the Arduino UNO Pins and the board in the post. Many pins of the chip here have more than one function. Mainly there are 14 arduino uno pinouts for input - output and few for special tasks. Whether you’re a beginner or an advanced user, knowing how to use each pin effectively will help you successfully create your Arduino-based projects. In this article, we will provide a detailed explanation of the Arduino Uno pin diagram, along with a downloadable PDF version for The Arduino Uno pinout diagram breaks down the key elements of the Arduino Uno, giving you complete control over your projects. Jul 17, 2021 · The Arduino Nano is another popular Arduino development board very much similar to the Arduino UNO. micro, Nano, mega, Leonardo, 101. These small yet powerful devices have gained significant traction among hobbyists, makers, and professionals alike for their ease of use and wide range of applications. In this blog, we’ll be taking a closer look at Jun 3, 2025 · Arduino Nano pinout and exact connections with schematic representations and detailed information about each pinout functions. Understanding the pinout configuration of the Arduino Uno R3 is crucial for successfully utilizing the board’s capabilities in your projects. Jun 1, 2020 · Arduino Uno is an Atmega328p microcontroller based development board. Find out how the different pins are used for input and output, and explore the functionality and connections of each pin on the Arduino Uno board. Section 1 The first section contains power pins. Arduino UNO is a microcontroller board based on the ATmega328P. ATMega328 Pinout Configuration ATMEGA328P is a 28 pin chip as shown in pin diagram above. With analog inputs, Arduino Uno can implement complex control systems and perform advanced data processing tasks. Get started on your Arduino journey today! Dec 13, 2023 · The Arduino Uno is a microcontroller board that serves as a fundamental tool for electronics and coding enthusiasts, educators, and professionals in the development of interactive projects. Jan 25, 2022 · The Arduino Uno has two types of pins – analog pins (or ADC pins) and digital pins. The analog input pins enable the measurement of voltage levels from sensors or other analog sources. ATMEGA328P is an 8-bit microcontroller based on AVR RISC architecture. D12 PB4 ~D11 PB3 ~D10 PB2 ~D9 PB1 D8 PB0 We will explore the comprehensive pinout diagram of the Arduino Uno R3, providing detailed information on each pin’s purpose and capabilities. Digital pins Use these pins with digitalRead (), digitalWrite (), and analogWrite (). Learn about the pin diagram of the Arduino Uno R3 and understand how to connect various components to the board. Understand how to connect sensors and actuators to the Arduino Uno R3 and start experimenting with electronics and programming. The definitive Arduino Uno pinout diagram is a comprehensive guide to all the pins and functions of the Arduino Uno board, perfect for beginners and advanced users. Discover how to connect and use the pins for different projects. A Comprehensive Overview of Arduino Uno’s Pinout Diagram In this section, we will Learn about the pin diagram of Arduino and understand how to use each pin for different functions and connections. May 6, 2019 · Download PDF with ESP8266 Pinout Diagrams We’ve put together a handy PDF that you can download and print, so you always have the ESP8266 diagrams next to you: Download PDF Pinout Diagrams » ESP8266 Peripherals The ESP8266 peripherals include: 17 GPIOs SPI I2C (implemented on software) I2S interfaces with DMA UART 10-bit ADC Best Pins to Use – ESP8266 One important thing to notice about Oct 7, 2025 · Learn how to set up the UNO R4 Minima, the fourth revision of our most popular and important development board. See the official pin diagram, schematic, dimensions, and datasheet of the Arduino UNO R3 and WIFI R2. Learn about the schematic diagram of Arduino Uno, a popular microcontroller board. The UNO board provides access to 14 Digital I/O pins (0-13 in the above image). When program uploaded successfully, then connect the connection of pin 0 and 1. They operate at 5 volts. g. Jan 9, 2025 · Learn how to use Arduino Uno, a popular microcontroller board based on ATmega328P. Digital Pins Analog Pins Power Pins Also, notice that the ATMega pins for each Arduino pin are also provided in the diagram above. Learn about the pinout diagram for the Arduino Uno board, including details on each pin and its functionality. Furthermore, understanding the Grbl pinout is crucial for Learn how to create a circuit diagram for Arduino Uno, a popular microcontroller board, with step-by-step instructions and diagrams. In this article, we are going to see the pin diagram of Arduino UNO consists of a 28-pin microcontroller. In this article, we will delve into a Jul 23, 2025 · What is an Arduino Board? Here is an overview of the whole Arduino board. Get a clear understanding of the pin functions and use this information to create your own Arduino projects. Pinout Diagram Mar 17, 2025 · The Arduino UNO is a standard board of Arduino, which is based on an ATmega328P microcontroller. Feb 8, 2024 · a diagram showing the correspondence between the pins on an Arduino board and those of the ATmega168/328P microcontroller. The Basics of Arduino Uno Pinout Diagram In this section, we will explore the fundamental concepts behind the pinout diagram of the Arduino Uno board. These pins can be categorized into digital input/output (I/O) pins, analog input pins, power pins, and communication pins. Jun 2, 2023 · The Arduino Uno Pinout is a set of electrical connections that look like rows of tiny metal pins on the top of the Arduino board. The Arduino UNO Board, with the specification of pins, is shown below: Let's discuss each pin in detail. That should solve your problem. This guide will walk you through the pin configuration of various Arduino Arduino may make changes to specifications and product descriptions at any time, without notice. Oct 7, 2025 · Looking at the board from the top down, this is an outline of what you will see (parts of the board you might interact with in the course of normal use are highlighted): The Arduino UNO. There are pins with secondary functions as listed below. Find out how to power, program and communicate with the board using serial, I2C and SPI interfaces. The Arduino Uno R3 ICSP Pinout serves as the crucial link between various electronic components and the Arduino board, facilitating seamless communication and data exchange. Learn how to connect various components and modules with the Arduino Uno board. Of these 14 digital I/O pins, 6 pins can be used as PWM pins (pins 3,5,6,9,10 and 11). Dec 16, 2023 · Explore Arduino Uno pin descriptions, diagrams, and configurations for optimal project implementation. Note: While uploading program to Arduino just remove the connection of pin 0 and 1 as they are RXD and TXD pin which are used by serial communication for program uploading. Here, you can see the Arduino UNO pinout diagram. Each pin can provide or receive a maximum of 40 mA and has an internal pull-up resistor (disconnected by default) of 20-50 kOhms ADC2_CH9 (GPIO 26) Learn how to use the ESP32 ADC pins: ESP32 ADC Pins with Arduino IDE ESP32 ADC Pins with MicroPython Note: ADC2 pins cannot be used when Wi-Fi is used. It describes serial communication methods for data exchange with computers and other devices, emphasizing the importance of matching baud rates for successful communication. Oct 7, 2025 · Here the anatomy of Arduino UNO. Sep 18, 2024 · A complete guide on Arduino Nano Pinout, Board Layout, Technical Specifications, Important Features, Pin Description. The Vin pin can be used if you are using an external power source (and not the USB) to power the board. Visit Jameco Electronics. The Arduino Uno R3, a popular microcontroller board, features various digital and analog input/output pins, power pins, and communication ports. Arduino UNO SMD is a microcontroller board based on the ATmega328P. The pin configuration of the Arduino Uno CNC Shield V3 refers to the arrangement and assignment of the various input-output pins on the board. Mar 1, 2023 · arduino uno pin diagram pdfThe Hidden Potential of Arduino Uno Pin Diagram PDF No matter the level of your knowledge in electronics, there is something magical about wiring diagrams. Your ultimate resource for Arduino Uno R3 GPIO! Arduino Uno tutorial contains Introduction, Pinout, pin description with Examples, Programming, Applications , Features and types Arduino Uno offers 14 digital input/output pins, 6 analog inputs, a USB connection for programming and power supply purposes, a power jack to connect external power sources, and more. Besides being a handy target for your first blink sketch, this LED is very useful for debugging. It is the most popular of all AVR controllers as it is used in ARDUINO boards. Through this exploration, you will gain a deeper understanding of how the Arduino Uno R3 can be utilized in various projects and applications. analogWrite () works only on the pins with the PWM symbol. Learn about the pin diagram of Arduino Uno and understand the functionality of each pin on the board. com Feb 11, 2025 · Learn about the Arduino UNO board, its pinout, specifications, and functions. The pinout diagram of the Arduino Uno R3 development board contains 14 digital pins, 6 analog inputs, power jack, USB connection and ICSP header. Learn about the pin diagram of Arduino Uno and its explanation in a comprehensive PDF guide. Nov 10, 2020 · The Arduino Uno is one of the most popular microcontroller boards used for a variety of purposes — from basic DIY projects to complex robotics. May 29, 2021 · The Arduino Uno board looks like the following − As you can see, the pins are broadly divided into 3 sections. See the pin diagram, technical specifications, and how to program the board with Arduino IDE. Here is a breakdown of what each pin does. Learn about the Arduino Uno R3 diagram and understand the various components and connections on the board. Learn how to use Arduino UNO pins for various applications with this detailed tutorial and diagram. pdf), Text File (. Explore the power pins, digital pins, analog pins, serial ports, and more. Jan 13, 2013 · Each of the 14 digital pins on the Arduino Uno can be used as an input or output, using pinMode(), digitalWrite(), and digitalRead() functions. The Arduino UNO R3 is frequently used microcontroller board in the family of an Arduino. It includes a power supply input, two sets of digital I/O pins, an onboard voltage regulator, and an Atmel ATmega328P microcontroller. They allow users to connect expansion modules or shield boards, enhancing the capabilities of the Arduino Uno R4 WiFi. This article provides a step-by-step guide on how to design and build a circuit diagram using Arduino Uno, including the necessary components and wiring connections. The Nano board weighs around 7 grams with dimensions of 4. Arduino uno pinout, 14 digital pins as input and output, PWM, SDA/SCL pins Atmega328 chip with schematic. Four LED’s are connected to pin 0 – 3 of Arduino Uno. By exploring the various pins and features of the Arduino Uno R4 WiFi board, users can leverage the versatile connectivity options it offers without explicitly referring to specific technical terms. ATmega328 Microcontroller - It is a single chip Microcontroller of the ATmel family. It features a specific pin configuration that allows users to interface with various electronic components and sensors. Additionally, it covers I2C and SPI protocols, explaining the roles of master Learn about the Arduino Uno R3 pin diagram, including the different pins and their functions. So, if you’re using Wi-Fi and you’re having trouble getting the value from an ADC2 GPIO, you may consider using an ADC1 GPIO instead. The figure below shows the function of Arduino Uno pins. Dec 27, 2023 · I‘ll provide plenty of code samples and circuit diagrams to demonstrate how to tap into the Uno‘s flexible I/O. Due and Yen. The Arduino Uno is a widely used microcontroller board that is ideal for beginners and hobbyists. Given below is the pinout diagram of the UNO R4 Minima. Pin Definitions The pinout of Arduino Uno consists of a total of 20 pins, excluding the power and ground pins. Oct 6, 2025 · Arduino Uno Pin Diagram: A Complete Guide,arduino project. Learn how to use the Arduino Uno pinout for power, analog, digital and serial communication. It helps users visualize the connections between the different parts of the board, such as the microcontroller, input/output pins, power connectors, and so on. Explore the pinout diagram and discover how to interact with the different pins to create electronic projects and prototypes with the Arduino Uno R3. The main features of this board mainly include, it is available in DIP (dual-inline-package), detachable and ATmega328 Mar 6, 2025 · Complete Guide to Arduino Pin Configuration – Updated for 2025 Understanding the pin configuration of your Arduino board is essential before starting any project. 33 PAD (INT4/ICP1/CLK0)PC7 22 (OC1A/PCINT8)PC6 23 (PCINT9/OC1B)PC5 25 (PCINT10)PC4 26 (AIN2/PCINT11)PC2 5 Feb 8, 2024 · a diagram showing the correspondence between the pins on an Arduino board and those of the ATmega168/328P microcontroller. Let us look at the bottom sections. Power Pins The power pins on the Arduino Uno board ensure a stable and efficient power supply for its operation. Understand the various components and connections on the board to help you in your Arduino projects. - A diagram visually depicting the pin Arduino Uno Pin Diagram, Specifications, Pin Configuration & Programming - Free download as PDF File (. They are often seen as complex blocks of information that can be used to create an end product. The PWM pins are indicated by ~ before the pin number on the Arduino UNO boards (E. This article discusses about PWM Pins: Arduino Uno R3 provides six PWM-capable pins, labeled as D3, D5, D6, D9, D10, and D11, allowing users to control the intensity of connected devices that support PWM signals. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header and a reset button. " Arduino reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them. Let‘s start exploring the Arduino Uno‘s pinout! Here is a pin diagram for reference: Power Pins The Arduino Uno requires a 5-volt power supply to operate, which can be provided through several pins: In conclusion, the Arduino Uno pinout diagram is an invaluable resource for understanding the board’s pin functionality and physical layout. Aug 18, 2019 · The 14 digital input/output pins can be used as input or output pins by using the pinMode (), digitalRead () and digitalWrite () functions in the Arduino IDE. Arduino Uno board The Atmega328P Feb 12, 2018 · In this guide, learn about Arduino Nano pin outs and diagrams. The GPIO pins can be used for digital input and output, allowing the Arduino Uno to control and monitor external devices. It has an 8-bit processor Nov 7, 2018 · Summary of AN INTRODUCTION TO ARDUINO UNO PINOUT This article provides a comprehensive overview of the Arduino Uno pinout, detailing its hardware features including 14 digital I/O pins, 6 analog inputs, power options, and communication protocols like SPI, I2C, and Serial. See full list on roboticsbackend. They use the same Processor (Atmega328p) and hence they both can share the same program. Digital pins 0 and 1 are the serial communication pins RX and TX respectively. xsh kpatokm epyg kccbjrw wqm xpnoq isopizst qanbhls drjncpu giy ytpbv fto iqmd akmkkqkj lwfegvh