The Pro Mini 3.3V/8MHz Development Board is a compact, lightweight, and low-power Arduino-compatible board based on the ATmega328 microcontroller. Designed for space-constrained and battery-powered applications, this board is perfect for integrating with 3.3V logic modules such as LoRa, nRF24L01, ESP8266, and various sensors without the need for voltage level converters.

This minimalist board includes essential features such as a reset button, onboard power LED indicator, and 14 digital I/O pins—all while offering the full capabilities of the ATmega328 in a smaller form factor. Please note that the Pro Mini does not include a built-in USB programmer, so an external USB-to-Serial (FTDI or CP2102) adapter is required for uploading sketches.

✅ Key Features:

• 🧠 Microcontroller: ATmega328 – same as Arduino Uno

• ⚡ Operating Voltage: 3.3V – ideal for low-power and 3.3V logic components

• ⏱ Clock Speed: 8MHz – optimized for reduced power consumption

• 🔌 Digital I/O Pins: 14 (including 6 PWM-enabled pins: D3, D5, D6, D9, D10, D11)

• 🎛 Analog Inputs: 8 (A0 to A7) for precise sensor interfacing

• 📡 Serial Communication: RX/TX TTL-level ports for programming and data transfer

• 🔄 Compact Size: Easily integrates into embedded and portable systems

📦 Package Includes:

• 1 × Pro Mini Board – 3.3V / 8MHz

🛠 Applications:

• DIY electronics and embedded projects

• Low-power IoT sensor nodes

• Wireless communication modules (LoRa, nRF24L01)

• Wearable technology

• Home automation systems

⚠️ Note:

• USB programmer not included – requires external FTDI or similar USB-to-Serial adapter

• Ensure 3.3V logic compatibility with connected modules to avoid damage

Take your embedded designs to the next level with the Pro Mini 3.3V Development Board—an efficient and reliable choice for compact, low-power Arduino-based applications.

Please note: Images are for representation only. The Actual image of the product may vary slightly.