The ELECROW Crowtail‑Button 2.0 is a simple, reliable momentary push‑button module designed for Crowtail compatible systems. When pressed, the button outputs a digital HIGH signal, and when released, returns to LOW, making it ideal for user input / control actions in DIY electronics, robotics, embedded learning kits, or hobbyist projects. It features a panel‑mount design which allows it to be mounted securely in enclosures or project panels. The casing makes it easier to integrate into more polished builds. The module comes in several colors (black, red, blue, green, yellow), enabling color coding or visual aesthetics in your project; if no specific color is requested, a random one is supplied. It is compact and lightweight, works at standard Crowtail digital ports, and uses a Crowtail 4‑pin cable for easy connection (with VCC, GND, and signal pins). Overall, it offers an economical, plug‑and‑play way to add button input functionality to Crowtail‑based systems, suited for both beginners and more advanced users wanting user‑controlled triggers (e.g., to start/stop operations, select modes, or create menu navigation).