HKD Pro Mini 328 - 3.3V/8MHz Arduino-Compatible ATmega328P Board

The HKD Pro Mini 328 (3.3V/8MHz) is a compact, low-power, Arduino-compatible development board based on the ATmega328P microcontroller. Designed for advanced users, it is ideal for projects where small size, low voltage, and flexibility are required.

Unlike standard Arduino boards, the Pro Mini does not include a built-in USB interface, making it extremely compact and cost-effective. It connects easily to an FTDI Basic Breakout or FTDI cable for programming and supports auto-reset when using the breakout board.

This board is perfect for integrating with 3.3V modules and sensors such as GPS, accelerometers, and wireless modules without additional interfacing circuitry.

Features:

• Based on ATmega328P running at 8MHz
• Low-voltage operation (3.3V) - ideal for 3.3V sensors and modules
• Compact, lightweight (under 2 grams) design
• Compatible with Arduino IDE and libraries
• Supports auto-reset (with FTDI Basic Breakout)
• Reverse polarity and overcurrent protection
• Onboard power and status LEDs
• Flexible pin configuration - solder headers/wires as needed

Specifications:

• Microcontroller: ATmega328P
• Operating Voltage: 3.3V
• Clock Speed: 8MHz (external resonator, 0.5% tolerance)
• Digital I/O Pins: 14
• Analog Input Pins: 8
• DC Input Voltage: 3.3V-12V
• Voltage Regulator Output: 3.3V (max 150mA)
• Dimensions: Ultra-compact form factor
• Weight: <2g
• USB: Off-board via FTDI interface
• Package Includes: 1 × Pro Mini ATmega328P Module (3.3V, 8MHz)

What's in the box
1 x HKD Pro Mini 328 - 3.3V/8MHz Arduino-Compatible ATmega328P Board