Uno R3 with Atmega328

The UNOR3 is an electronic development board designed for rapid prototyping, education, and automating small projects. It’s the ideal entry point into the world of programmable electronics and embedded systems, combining a robust hardware architecture with extreme ease of use.

The beating heart of the board is the renowned high-performance ATmega328P microcontroller, an 8-bit chip that offers a perfect balance between power efficiency and computing power. The board integrates all the support circuitry needed to run the microcontroller safely and reliably, eliminating the need for complex external circuits and letting you focus solely on code development and component connections.

A Complete, Ready-to-Use Hardware Infrastructure
The UNOR3 stands out for its rich, flexible ecosystem of interfaces:

• Advanced Signal Management: It has 14 digital input/output pins, a standard that lets you control relays, LEDs, and switches. Of these, as many as 6 pins support PWM modulation (Pulse Width Modulation), essential for adjusting light brightness or for the fine-grained control of servo motors and DC motors.
• Dedicated Analog Interface: For monitoring the physical world, the board provides 6 analog inputs connected to an internal ADC converter. This section allows precise reading of variable signals from temperature, humidity and light sensors, potentiometers, and much more.
• Stability and Synchronization: Logic operation and instruction execution are timed by a 16 MHz crystal oscillator, which ensures precise, reliable timing over time.

Connectivity, Communication, and Flexible Power Supply
One of the UNOR3’s key industrial strengths lies in its communication section. The board uses the ATmega16U2 chip, programmed as a high-speed USB-to-serial converter. Compared to older, low-cost chips, this solution guarantees outstanding transmission stability, and the driver installs easily.

Power management is also designed for maximum versatility in the field:

• During Development: The board can be powered and programmed at the same time by connecting it directly to a computer with a standard USB Type B cable.
• In Stand-Alone Mode: Once the program is loaded, the UNOR3 can run independently. It can be powered on the move via a battery connected to the dedicated pins, or in fixed installations using a standard AC/DC adapter plugged into the built-in power jack (recommended voltage between 7V and 12V), thanks to the internal voltage regulator that stabilizes the current.
• Rounding out the hardware is an ICSP header for low-level in-circuit programming of the microcontroller, plus a handy physical reset button on the PCB to instantly restart code execution whenever needed.

Whether you’re taking your first steps in robotics, programming a home weather station, or developing an industrial prototype, the UNOR3 offers the stability and flexibility you need to bring any idea to life.