ATMEGA328 Uno R3 Dev Board + Expansion Board Set
The USB Connection is type-c and smd microcontroller chip not like other version type-a version.
The SMD UNO R3 is a compact and versatile development board based on the popular Arduino UNO R3 platform. Designed for electronics prototyping, programming, education, and DIY projects, it provides an easy-to-use development environment for both beginners and experienced makers.
The board is based on the ATmega328P microcontroller and uses an SMD (Surface-Mount Device) design, making it compact while retaining the core functionality of the standard UNO R3. It provides 14 digital input/output pins, including 6 PWM outputs, and 6 analog input pins, giving users plenty of interfaces for connecting sensors, LEDs, motors, displays, and other electronic modules.
The dev board supports USB programming and serial communication, allowing users to easily upload programs from a computer. It is compatible with the Arduino IDE and supports the extensive Arduino ecosystem of libraries, shields, sensors, and modules.
With its straightforward interface, reliable performance, and wide compatibility, the SMD UNO R3 is suitable for applications such as robotics, smart home projects, IoT prototypes, sensor monitoring, automation systems, STEM education, and DIY electronics.
Key Features of Atmega328 Microcontroller
- Based on the ATmega328P microcontroller
- SMD design for a compact and cost-effective board
- 14 digital I/O pins
- 6 PWM-capable digital outputs
- 6 analog input pins
- USB interface for programming and serial communication
- Compatible with the Arduino IDE
- Supports a wide range of Arduino libraries and expansion modules
- Easy connection to sensors, displays, motors, relays, and other peripherals
- Suitable for prototyping, education, robotics, and DIY electronics projects
Applications
The SMD UNO R3 can be used for a wide variety of embedded and maker projects, including:
- Robotics and robot control
- Smart home and automation systems
- Sensor and environmental monitoring
- LED and lighting control
- Motor and servo control
- IoT prototyping
- STEM and programming education
- DIY electronic projects
- Rapid hardware prototyping
The development board offers an affordable and practical platform for developing Arduino-based electronic projects, combining the familiar UNO R3 architecture with a compact SMD design.






















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