The Arduino Pro Mini 328 is a compact 5V / 16MHz microcontroller board built around the popular ATmega328 chip. Its small footprint makes it a favourite for makers, students, and hobbyists who need real Arduino power in a tiny space — from smart-garden sensors and automatic irrigation controllers to home automation, robotics, and embedded electronics projects.
Key features
- Runs at 5V logic with a 16MHz clock for smooth, responsive performance.
- Based on the widely supported ATmega328 microcontroller.
- Minimal, space-saving board ideal for permanent or built-in installations.
- Compatible with the standard Arduino IDE and a huge library ecosystem.
- Pin headers let you connect sensors, relays, and modules with ease.
Typical uses
- Automatic plant-watering and drip-irrigation timers and controllers.
- Soil moisture, temperature, and light sensor projects.
- DIY robotics, wearables, and battery-powered gadgets.
- Home and garden automation prototypes.
How to choose / tips
- Pick the 5V / 16MHz version when your sensors and modules are 5V-based.
- You'll need a USB-to-serial (FTDI) adapter to upload your code.
- Choose the Pro Mini when size and a low-profile build matter more than onboard USB.
Why tna W rna
At tna W rna we focus on reliable sourcing, quality electronics, and fast delivery across Egypt, with cash on delivery available so you can order with confidence.
