The Arduino Uno R3 Development Board is the quintessential microcontroller board for learning, prototyping, and building embedded electronics projects. ATmega16U2 USB-to-Serial converter (Standard USB Type-B port) · 5.0V DC logic supply · 7V to 12V DC via DC Barrel Jack or V_IN.
The Arduino Uno R3 Development Board is the quintessential microcontroller board for learning, prototyping, and building embedded electronics projects. Built around the Microchip ATmega328P 8-bit AVR microcontroller running at 16 MHz, it delivers identical functional specs, pinout layout, and software compatibility as the original Arduino Uno R3.
This high-quality DIP version features a socketed ATmega328P chip, allowing easy removal or replacement without unsoldering. The board incorporates an ATmega16U2 USB-to-serial converter for high-speed USB communication, fast uploading, and direct plug-and-play capability without needing third-party drivers. It accepts power via a standard USB Type-B connector, a DC barrel power jack (7V to 12V DC), or raw input on the V_IN pin with automatic power source selection.
Featuring 14 digital I/O pins (6 PWM channels), 6 analog inputs, an ICSP header, reset button, and standard 2.54mm female headers, this board supports the full ecosystem of Arduino expansion shields and sensors. It is ideal for robotics, automation, IoT prototyping, STEM education, and DIY electronics.
| Core Microcontroller | Microchip ATmega328P 8-bit AVR MCU @ 16 MHz |
|---|---|
| USB Interface | ATmega16U2 USB-to-Serial converter (Standard USB Type-B port) |
| Operating Voltage | 5.0V DC logic supply |
| Recommended Input Voltage | 7V to 12V DC via DC Barrel Jack or V_IN |
| Input Voltage Limits | 6V to 20V DC |
| Digital I/O Pins | 14 total (6 offer hardware PWM output) |
| Analog Input Channels | 6 pins (A0 - A5) |
| Memory Capacity | 32 KB Flash memory (0.5 KB used by bootloader), 2 KB SRAM, 1 KB EEPROM |
| Communication Protocols | Hardware UART TTL (TX/RX), SPI, and I2C (SDA/SCL) |
| Form Factor | Replaceable DIP socket chip version with standard 2.54mm female headers |
| Onboard Features | 5V and 3.3V onboard LDO regulators, reset push button, and LED indicators (ON, L, TX, RX) |
What is the operating voltage?
5.0V DC logic supply.
Which interface does it use?
ATmega16U2 USB-to-Serial converter (Standard USB Type-B port).
Is it compatible with Arduino?
Yes. It works with Arduino projects.
Can I buy the Arduino Uno R3 Development Board in Kanpur?
Yes – buy online with delivery across India, or pick it up from the iTechBuilders store, Damodar Nagar, Kanpur.
