Pro Mini ATmega328P Microcontroller Board - 3.3V/8M

The Pro Mini ATmega328P 3.3V 8MHz Microcontroller Board is an ultra-compact, lightweight development board designed for space-constrained and low-power DIY electronics, IoT, and robotics projects. Running on a 3.3V operating voltage with an 8MHz external resonator, this board is highly efficient and ideal for battery-powered applications. It allows makers and engineers to build compact prototypes without the bulk of a standard Arduino Uno, making it a staple for wearable technology and remote sensor nodes.

This improved version features the powerful ATmega328P microcontroller, offering 14 digital input/output pins and 8 analog inputs. Because it operates at 3.3V, it interfaces seamlessly with modern 3.3V sensors, GPS modules, and wireless transceivers (such as ESP8266 or NRF24L01) without requiring external logic level converters. To program the board, simply connect an external FTDI USB-to-TTL serial adapter to the onboard 6-pin programming header.

Features:

• Ultra-Compact Form Factor: Extremely small footprint and lightweight design, perfect for miniature projects and wearables.
• Low-Power 3.3V Operation: Runs at 3.3V, making it highly compatible with modern low-voltage sensors and battery power.
• ATmega328P Microcontroller: Equipped with 32KB flash memory, 2KB SRAM, and 1KB EEPROM.
• 8MHz Clock Speed: Driven by an onboard 8MHz ceramic resonator for stable and power-efficient processing.
• Abundant I/O Pins: Features 14 digital I/O pins (6 PWM outputs) and 8 analog inputs (A0-A7).
• Onboard Protection: Integrated over-current protection and power/status LEDs for easy troubleshooting.
• Auto-Reset Support: Designed with a DTR pin to support automatic reset when programming via FTDI adapters.

Package Includes:

1 x Pro Mini ATmega328P 3.3V 8MHz Board

2 x 12-Pin Male Headers

1 x 6-Pin Right-Angle Male Header