# Arduino\_UNO\_R3 (Component)

## Description

Arduino UNO Microcontroller Module, release 3
Arduino UNO R3 Microcontroller Module Atmel AVR USB
Arduino\*UNO\*R3\* 

## Component Details

- **Owner:** kicad\-part\-library
- **Created:** 10/4/2026
- **Last Updated:** 10/4/2026
- **Visibility:** Public
- **Datasheet URL:** https://www\.arduino\.cc/en/Main/arduinoBoardUno
- **Part Type:** Microcontroller
- **Package or Case Code:** Arduino\_UNO\_R3
- **Manufacturer Part Number:** Arduino\_UNO\_R3
- **Manufacturer Name:** Arduino
- **Used in:** 2 projects

- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Arduino
- **MPN:** Arduino\_UNO\_R3
- **Package / Case Code:** Module
- **Pin Count:** 32
- **Logic Function:** AND
## Pins

| Pin | Name | Type |
|-----|------|------|
| 1 | NC | Not Connected |
| 2 | IOREF | Output |
| 3 | \~\{RESET\} | Input |
| 4 | 3V3 | Power Out |
| 5 | \+5V | Power Out |
| 6 | GND | Power In |
| 7 | GND | Power In |
| 8 | VIN | Power In |
| 9 | A0 | Bi\-Directional |
| 10 | A1 | Bi\-Directional |
| 11 | A2 | Bi\-Directional |
| 12 | A3 | Bi\-Directional |
| 13 | SDA/A4 | Bi\-Directional |
| 14 | SCL/A5 | Bi\-Directional |
| 15 | D0/RX | Bi\-Directional |
| 16 | D1/TX | Bi\-Directional |
| 17 | D2 | Bi\-Directional |
| 18 | D3 | Bi\-Directional |
| 19 | D4 | Bi\-Directional |
| 20 | D5 | Bi\-Directional |
| 21 | D6 | Bi\-Directional |
| 22 | D7 | Bi\-Directional |
| 23 | D8 | Bi\-Directional |
| 24 | D9 | Bi\-Directional |
| 25 | D10 | Bi\-Directional |
| 26 | D11 | Bi\-Directional |
| 27 | D12 | Bi\-Directional |
| 28 | D13 | Bi\-Directional |
| 29 | GND | Power In |
| 30 | AREF | Input |
| 31 | SDA/A4 | Bi\-Directional |
| 32 | SCL/A5 | Bi\-Directional |

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*Generated from [https://flux\.ai/kicad\-part\-library/arduinounor3\~bkr](https://flux.ai/kicad-part-library/arduinounor3~bkr)*