太白金星

Relay module

Overview

Principle: The microcontroller, sensor and other signals drive the optocoupler, and then the optocoupler drives the transistor, and the transistor controls the relay to close.

Advantages: Using optocoupler and transistor, the control is safer.

Equipped with power indicator light and work indicator light, the green light turns on when the power is turned on, and the red light turns on after the relay is closed, making it easy to observe the working status of the relay module.

Design Files

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Update:2025-06-19 05:25:00

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