20 Piece Double Sided PCB Prototype Kit For DIY Projects Four Sizes Includes Five Boards Per Size Flexible Layout With No Predefined Routing Great For Arduino Prototyping And Electronics Nerds

Four-Size Double-Sided PCB Prototyping Kit for Arduino
✔️ 20 boards in 4 sizes: 2x8 cm, 3x7 cm, 4x6 cm, 5x7 cm

This FR4 double-sided PCB prototype kit includes four sizes with five boards per size, enabling flexible DIY prototyping. It's ideal for Arduino projects, LED arrays, sensors, and general electronics experiments.

✅ Four sizes across 20 boards total
✅ FR4 glass fiber, green color, 1.6 mm thick
✅ 0.04 in diameter mounting holes at each corner (1.0 mm)
✅ 2.54 mm pitch (0.1 in) for easy component placement
✅ No predefined routing for freeform circuit layouts
✅ Pack includes 20 boards in total

💡 What is a double sided PCB prototype kit used for in Arduino prototyping workflows? Handy tool for laying out circuits freely without fixed traces.
- quick layout without predefined routing
- easy to modify connections during testing
- supports standard 2.54 mm pitch components
- ideal for LED/resistor/sensor prototyping