Mini Pro Microcontroller Board: Compact 33.3mm x 18.0mm Board with Atmega328P-AU and 16MHz Clock

The Professional Mini Pro version represents a dedicated microcontroller circuit board tailored for electronics enthusiasts, makers, and prototyping projects requiring a capable yet physically compact control unit. Its foundation is the Atmel Atmega328P-AU microcontroller, a widely recognised chip known for its application in various development environments. The board's defined size of 33.3mm by 18.0mm makes it a candidate for projects where space is at a premium, from custom robotics to embedded systems. It delivers a suite of I/O options with 14 digital pins and 8 analog inputs, coupled with a 16MHz resonator for processing speed, providing a practical hardware platform for turning electronic concepts into functional prototypes.

Features and Construction

This section details the tangible specifications and build of the Mini Pro board, focusing on the concrete data provided about its capabilities and physical form.

Material and Build

The board is constructed as a standard printed circuit board (PCB) populated with electronic components. The core processing element is the specified Atmel Atmega328P-AU microcontroller soldered onto the board. Additional fixed hardware includes a 16MHz resonator for clock generation, a physical reset button for manual rebooting, and pre-soldered pin headers designed for mounting holes to secure the board. The construction centres on providing a ready-to-use microcontroller platform without the need for additional assembly of these core parts.

Size and Practical Fit

The board's dimensions are precisely given as 33.3mm in length and 18.0mm in width. This small footprint is a key physical differentiator, allowing it to be integrated into enclosures or projects where larger development boards would not fit. The inclusion of mounting hole pin headers supports this practical application by providing a method to fix the board securely in place, preventing movement and ensuring reliable connections in finished projects.

Uses and Placement

The technical parameters of the Mini Pro board support its use in various electronic applications, from hobbyist experiments to more structured prototype development.

Event or Professional Use

For workshops, educational settings, or professional prototyping, the board's support for serial download and a full complement of I/O pins makes it suitable for teaching microcontroller programming and sensor interfacing. The availability of 8 analog inputs (A0~A7) allows for data acquisition from multiple sensors simultaneously, useful in environmental monitoring or data logging setups. The six PWM-capable digital outputs (D3, D5, D6, D9, D10, D11) enable precise control of motors, LEDs, or servos in robotics or animation projects.

Everyday Home Use

Makers and DIY enthusiasts can employ this board in home automation projects, such as custom light controllers, smart plant watering systems, or security gadgets. The flexible power supply options, supporting external DC from 3.3V to 12V or a standard 9V battery, make it adaptable for both benchtop testing and portable, battery-operated devices. The TTL-level serial port (RX/TX) facilitates communication with other modules like Bluetooth or WiFi adapters for connected projects.

Benefits and Buying Value

The value of this product lies in its specific combination of a proven microcontroller, comprehensive I/O, and a small form factor, presented as a fully assembled unit.

Reuse and Low Maintenance

As a solid-state electronic board with no moving parts, its maintenance is minimal under normal use. The board is designed for reuse across multiple projects; it can be reprogrammed via serial download repeatedly. The robust pin headers are intended for repeated connection and disconnection of jumper wires during the prototyping phase.

Why Choose This Product

Choosing this Mini Pro board is supported by its precise specification set: the specific Atmega328P-AU microcontroller, the exact 33.3mm x 18.0mm size, the confirmed count of 14 digital and 8 analog pins, and the 16MHz operating speed. It offers a known quantity for those familiar with this chip ecosystem, avoiding the uncertainty of unspecified clone boards. Its defined power supply range and battery support provide clear guidelines for integration, reducing guesswork in power circuit design.