The 4 Channel 5V Relay Module is a powerful switching device designed to control high-voltage appliances using low-voltage microcontrollers like Arduino, Raspberry Pi, ESP32, and others. It allows you to control AC/DC devices such as lights, fans, motors, and pumps with precision and safety. Each of the 4 relays on the board is optically isolated for safe operation and provides both normally open (NO) and normally closed (NC) contacts. The LED indicators on each channel help monitor switching status in real-time. Whether you’re building a home automation system, robotics project, or industrial control application, this relay module offers a reliable and scalable solution. ✅ Key Features: 4 Channels: Control 4 devices independently Operating Voltage: 5V DC Trigger Level: Active Low Max Switching Voltage: 250VAC / 30VDC Max Switching Current: 10A Opto-Isolated for safety LED Indicators for each relay channel Compatible with Arduino, Raspberry Pi, NodeMCU, STM32, etc. ��️ Applications: Home automation Smart agriculture systems Industrial equipment control IoT-based switching DIY hobby electronics projects Robotics and automation projects
