| Account | My Orders
Cart(0)
Spotpear
  • sales

    +86-0755-88291180

Arduino Uno R3 Hardware Reference

In the Arduino development board family, the Uno development board is the most beginner-friendly Arduino development board. Because it is easy to learn, stable and reliable, the Uno development board is also the most widely used development board with the most reference materials.

Arduino Uno is a development board based on microcontroller ATmega328P. It has 14 digital input/output pins (6 of these pins can be used as PWM output pins), 6 analog input pins, 16 MHz quartz crystal oscillator, USB interface, power interface, supports in-circuit serial Programming and reset buttons. Users only need to connect the development board to the computer through the USB interface to use it.

If you choose the Arduino clone board, you can learn how to install the driver for the Arduino clone board through our tutorial.

The main technical parameters

Microcontroller: ATmega328P
Working voltage: 5 volts
Input voltage (recommended) : 7-12 volts
Input voltage (limit) : 6-20 volts
Digital input and output pins: 14 (6 of which can be used as PWM pins)
PWM pins: 6
Analog input pins: 6
Input/Output Pin DC Current : 20mA
3.3V pin current: 50 mA
Flash Memory (flash memory): 32 KB (ATmega328P) of which 0.5 KB is used for system boot (bootloader)
SRAM (static memory): 2 KB (ATmega328P)
EEPROM: 1KB (ATmega328P)
Built-in LED pins: 13
Length: 68.6mm
Width: 53.4mm
Weight : 25g
Clock frequency: 16MHz

Pin Description Diagram


TAG： X1012 Raspberry Pi 5 POE And PCIe to M.2 NVMe SSD Board Pi5 2280 Power over Ethernet ESP32-P4 Pico WIFI6 Development Board C6 MIPI DSI 10.1-inch Display /CSI Camera /Audio Speaker Mic AI Deepseek How to install Esp32 by espressif systems Pi5 ESP32 2 inch Capacitive TouchScreen LCD Display ST7789 CST816D 240x320 For Arduino/Raspberry Pi/Pico ESP32 S3 Development Board 2.8 inch B LCD 2.8inch Display 480x640 TouchScreen QMI8658 Sensor / Battery Port LVGL/HMI For Arduino Sipeed NanoCluster Mini Cluster Board mini data center For Raspberry Pi CM45 / Computer /LM3H /M4N ESP32 S3 Development Board 2.4 inch LCD Capacitive Touch Screen 2.4inch Display 240×320 N16R8 Jetson Orin Nano/NX Super Developer IO Base Development Board Dual network RJ45 For Jetson Orin Nano/NX Module Milk-V Duo SC09 Serial UART Bus Servo Motor Switchable 2.3kg 300Angle Raspberry Pi Pico 2 RP2350 1.28 inch Round LCD TouchScreen Development Board 240x240 Display QMI8658 6-Axis $17.9 Raspberry Pi 24.5 inch Type C/HDMI 2K Display 24.5inch Screen 2560x1440 Computer PC Phone For Xbox/PS4/Switch Cyberpunk LED Matrix Hourglass Gravity Sensor DIY Countdown Timer Clock STEM Educational Soldering Project for Beginners & Adult Raspberry Pi DSI Aluminum Heatsink Milk-V Duo Raspberry Pi Pico 2 W RP2350 Pico2W ARM Cortex-M33 And RISC-V Hazard3 Wi-Fi4 Bluetooth5.2 CYW43439 Raspberry Pi 5 D Raspberry Pi 5 Gen3
Price：
$1.89
Model：
UNO-R3-Case
Brand：
Spotpear
SKU：
0702001

UNO R3 Development board Case ABS UNO R3 case for Arduino

TAG： Raspberry Pi 5 Arduino 1.5inch LCD Pi5 PoE HAT Milk-V Duo S MIPI DSI Display Audio Input Output UGV Beast PT AI 4G 5G OpenCV Robot Car MediaPipe Raspberry Pi4B Pi5 Raspberry Pi Pico 2 RP2350B 4.3inch Capacitive TouchScreen 4.3 inch LCD Display Development Board 800×480 Raspberry Pi Pico 1.28inch Raspberry Pi 11 inch HDMI LCD Captive TouchScreen Display 11inch 1920x1200 For Jetson Series/Computer PC PCIe to M.2 Adapter Board ESP32-S3 TFT Raspberry Pi Pico 2 RP2350 GEEK 1.14 inch LCD SK18 Computer AI Deepseek Voice Keyboard Linux 18x1.58inch LCD Screen Customize keys Raspberry Pi 7 inch QLED Quantum Dot Display 1024x600 Capacitive Touchscreen Computer PC Jetson Game ESP32-S3 LCD Mini tiny Development Board 0.85 inch Display 0.85inch Screen 128x128 SD-Port For Arduino ESP32 S3 Development Board 4.3 inch LCD Capacitive Touch Screen 4.3inch Display 480×272 N16R8 LCD Screen Driver Board ADXL356BEZ ESP32-S3 AI 1.85 inch Round LCD 1.46inch LCD TouchScreen Display 412×412 SPD2010 For Arduino /Raspberry Pi /ESP32 /Pico /STM32 DeepSeek AI Voice Chat Robot ESP32 S3 Development Board 2.8 inch Display 2.8inch Screen
©Copyright 2015 Berlinger Haus | All Rights Reserved
Address：Rm401, building 4, Enlai industrial city, Nankang Road, Danzhutou community, Nanwan street, Longgang District, Shenzhen
Email：tech-support@spotpear.com (Only tech support .Order see 'CONTACT US' at our web )