5V 1-Channel Relay Module

5V 1‑Channel Relay Module – Actuators

The 5 V 1‑Channel Relay Module is a compact, ready‑to‑use interface that lets low‑voltage microcontrollers (Arduino, Raspberry Pi, ESP32, etc.) safely switch higher‑voltage loads such as lamps, motors, solenoids, or household appliances. Inside the board, a single electromechanical relay is driven by a 5 V control signal and protected with an optocoupler, flyback diode, and LED indicator, making it ideal for hands‑on projects that bridge the gap between digital logic and real‑world power.

With this module, students explore core STEAM concepts: they learn how to design circuits that separate control logic from power circuitry, understand the role of isolation and protection components, program timing and sequencing in code, and see the immediate physical impact of their software. Key features include a 5 V coil voltage, 10 A / 250 V AC (or 30 A / 125 V DC) switching capacity, built‑in optocoupler for electrical isolation, a clear LED status indicator, and a screw‑terminal for easy wiring. Its plug‑and‑play layout (pin‑header compatible with standard breadboards) speeds up prototyping, while the robust housing ensures reliable operation in classroom labs.

Because it merges electronics, coding, and mechanical motion in a single, low‑cost component, the relay module is a perfect STEAM tool. It empowers learners to build automated lighting, motor‑driven robots, smart home prototypes, and safety‑critical systems, giving them a tangible, interdisciplinary experience that reinforces theory with real‑world impact.