Completed4 channel relay module
PRO4 channel relay module
License
：TAPR Open Hardware License
Description
A 4-channel relay with optocoupler provides electrical isolation between control and load circuits. The optocoupler protects the microcontroller from high voltage, while the relay safely switches devices like lights or motors.
Design Drawing
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Intellectual Property Statement & Reproduction Instructions
This is an open-source hardware project. All intellectual property rights belong to the creator. The project is shared on the platform for learning, communication, and research only; any commercial use is prohibited. If your intellectual property rights are infringed on EasyEDA, please notify us by submitting relevant materials in accordance with the Rules for Complaints and Appeals of IPR Infringement.
Users must independently verify the circuit design and suitability when replicating this project. All risks and consequences are borne by the user, and the platform assumes no liability.
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