Mini Pro Microcontroller Board: Compact Control with 14 Digital Pins and 8 Analog Inputs

The Mini Pro microcontroller board delivers precise electronic control in a 33.3mm by 18.0mm footprint, featuring an Atmel Atmega328P-AU microcontroller, 14 digital input/output pins (including 6 PWM outputs), and 8 analog inputs. With a 16MHz clock frequency and support for external 3.3V to 12V DC power supplies, it handles real-time tasks like sensor monitoring or motor control, making it suitable for prototyping, robotics, and DIY electronics projects where space and versatility matter.

Features and Technical Specifications

This section details the Mini Pro's capabilities, from its pin configurations to power options, ensuring you understand how it integrates into electronic systems.

Digital and Analog Pin Layout

The board provides 14 digital pins (RX, TX, D2-D13) for connecting components like LEDs or switches, with 6 of these (D3, D5, D6, D9, D10, D11) offering PWM functionality to adjust signal duty cycles. Eight analog inputs (A0-A7) accept variable voltage readings from sensors, enabling applications such as light sensing or temperature measurement. A TTL-level serial port transceiver (RX/TX) facilitates serial communication for data logging or remote control.

Power and Performance Data

Construction and Durability Details Built on an FR-4 fibreglass PCB, the Mini Pro offers electrical insulation and resistance to warping in the compact 33.3mm by 18.0mm form. Pin headers provide secure connections for the 14 digital and 8 analog ports, with soldered joints designed to withstand repeated insertions. The Atmega328P-AU microcontroller includes 32KB flash memory for program storage, supporting serial downloads for updates without physical disassembly.

Applications and Use Cases

Explore how the Mini Pro fits into various scenarios, from professional prototyping to everyday electronics tinkering, leveraging its specific features.

Professional Prototyping and Testing

In lab settings, engineers use the Mini Pro for rapid prototyping due to its 14 digital pins and 8 analog inputs, which interface with sensors and actuators in control systems. The 16MHz speed allows real-time data acquisition, while PWM outputs on pins like D3 and D6 enable precise motor speed adjustments in robotics. Support for 3.3V to 12V power adapts to different voltage requirements in industrial mock-ups.

Everyday DIY Electronics Projects

Versatility in Educational and Hobby Contexts Teachers integrate the Mini Pro into electronics courses, using its 8 analog inputs for hands-on sensor experiments and PWM outputs for demonstrating signal modulation. The board pairs with accessories like breadboards or shields, expanding functionality while maintaining the compact 33.3mm profile. Its support for 9V battery power enables mobile projects, such as remote-controlled vehicles or portable data loggers.

Benefits and User Advantages

Discover the long-term value and user satisfaction offered by the Mini Pro's specific features and reliable performance.

Cost-Effective and Long-Term Value

Compared to larger microcontroller boards, the Mini Pro's 33.3mm by 18.0mm size reduces material costs, while the Atmega328P-AU microcontroller's durability minimises replacement needs. Support for 3.3V to 12V power sources lowers energy expenses, and the ability to handle 14 digital and 8 analog connections reduces the need for additional components, offering savings over time in prototyping budgets.

User Experience and Reliability

Users gain confidence from the board's consistent performance, with the 16MHz clock ensuring stable timing for projects like clock displays or timers. The peace of mind in knowing the 6 PWM outputs provide precise control, such as dimming LEDs smoothly, stems from the Atmega328P-AU's reliable signal generation, backed by the robust FR-4 PCB construction that resists wear.

Reasons to Choose This Microcontroller Board

Select the Mini Pro for its balanced feature set: 14 digital pins and 8 analog inputs in a 33.3mm by 18.0mm package, ideal for space-sensitive designs. The 16MHz speed and PWM capabilities enhance control accuracy, while flexible power options support diverse applications. Its straightforward serial download process simplifies updates, making it a practical choice for both beginners and experienced makers seeking measurable performance.