Overview
The Uno R3 Development Board (DIP Version) is the most widely used, open-source microcontroller board based on the Microchip ATmega328P microcontroller. This board is 100% compatible with the Arduino ecosystem, making it the absolute gold standard for beginners, hobbyists, students, and professional rapid-prototyping engineers.
The DIP (Dual In-line Package) version features a socketed ATmega328P chip. This design advantage allows you to easily replace the microcontroller if it gets damaged during experimentation or remove the chip entirely to place it into a custom permanent circuit board.
Key Features
Removable DIP IC: Features a socketed ATmega328P microcontroller for easy replacement or standalone project migration.
Plug-and-Play Compatibility: Fully compatible with the Arduino IDE, shields, sensors, and code libraries.
Robust Power Design: Can be powered via a USB connection or an external power supply (AC-to-DC adapter or battery).
Reset Button: Conveniently located onboard to restart your program without disconnecting the power.
LED Indicators: Onboard LEDs for Power (ON), Serial Communication (TX, RX), and a user-programmable LED connected to Digital Pin 13.
Technical Specifications
Feature | Specification |
Microcontroller | ATmega328P (DIP Package) |
Operating Voltage | 5V |
Input Voltage (Recommended) | 7V – 12V |
Input Voltage (Limit) | 6V – 20V |
Digital I/O Pins | 14 (of which 6 provide PWM output) |
PWM Digital I/O Pins | 6 (Pins 3, 5, 6, 9, 10, and 11) |
Analog Input Pins | 6 (A0 – A5) |
DC Current per I/O Pin | 20 mA |
DC Current for 3.3V Pin | 50 mA |
Flash Memory | 32 KB (ATmega328P) of which 0.5 KB used by bootloader |
SRAM | 2 KB (ATmega328P) |
EEPROM | 1 KB (ATmega328P) |
Clock Speed | 16 MHz |
USB Interface Chip | ATmega16U2 (or CH340G depending on specific variant) |
Pinout Configuration Summary
Digital I/O (Pins 0–13): Used for digital input/output. Pins 0 (RX) and 1 (TX) are also used for serial communication.
Analog Input (Pins A0–A5): Used to read analog sensors (e.g., temperature, light). They can also be configured as digital I/O if needed.
Power Pins: * GND: Ground pins.
5V & 3.3V: Regulated power outputs for external components.
Vin: Input voltage pin for powering the board from an external source.
Target Applications
Education & STEM: Perfect for introducing students to electronics and programming.
Robotics: Control servo motors, DC motors, and read data from ultrasonic, infrared, or gyro sensors.
IoT & Automation: Build smart home systems, automated weather stations, and security systems.
Rapid Prototyping: Quickly test concepts and circuit designs before moving to custom PCBs.
Package Includes
1 x Uno R3 Development Board (DIP Version) with ATmega328P Microcontroller.