0.1″ (2.54 mm) Arduino Male Pin Headers (Straight Blue 10PCS)

DFRobot Blue 40‑Pin 2.54mm Single Row Pin Header Strip offers a dependable interconnection solution for electronics prototyping, development board expansion, and embedded hardware assembly. A standard 2.54mm (0.1") pitch ensures direct compatibility with Arduino boards, solderless breadboards, female header sockets, and typical prototyping PCBs. The blue breakaway connector strip supports fast circuit assembly while maintaining reliable electrical contact across modules and controller boards. Consistent pin spacing, durable plated contacts, and a customizable length format make the prototyping header suitable for robotics hardware builds, sensor module integration, and engineering lab experimentation.

Standard 2.54mm Pitch for Universal Prototyping

This 0.1‑inch pitch electronics header follows the most widely adopted spacing standard across embedded development platforms. Such uniform spacing allows seamless insertion into solderless breadboards and direct soldering onto prototyping PCBs without mechanical adjustment. The single‑row connector format simplifies board‑to‑board wiring when building controller expansions, sensor breakout assemblies, and robotics interface circuits. Consistent alignment between pins improves solder joint reliability while maintaining stable electrical contact in repeated prototyping and development environments.

Breakaway Design for Flexible Pin Counts

A 40‑pin breakaway structure enables easy segmentation into shorter connector sections using simple hand pressure or cutting tools. This configurable header strip adapts to many circuit layouts, allowing customized pin counts for shields, controller boards, sensor modules, and embedded development hardware. Engineers and makers frequently divide long header strips to match specific PCB footprints, reducing unused materials while maintaining clean hardware integration. Such modular flexibility supports rapid prototyping workflows and efficient electronics assembly during iterative hardware design.

Color-Coded Identification for Circuit Organization

The blue pin header supports visual signal organization when assembling complex electronics systems. Color differentiation helps separate signal groups on development boards, robotics controllers, and sensor interface circuits. Many prototyping environments apply color conventions such as green for digital signals, blue for analog channels, red for power rails, and black for auxiliary connections or ground. Using colored connector strips improves wiring readability, reduces assembly mistakes, and simplifies troubleshooting when multiple signal paths exist within dense prototyping layouts.

Typical use cases include electronics prototyping, controller board expansion, sensor module interconnections, and robotics hardware integration. The breakaway single‑row header format provides a practical connector solution for maker laboratories, engineering development benches, and STEM Education environments that require fast and reliable PCB interconnections during experimentation and iterative hardware design.