4 Piece 12V Relay Module With Optocoupler Isolation 1 Channel Relay Board High Or Low Level Trigger For Arduino Raspberry Pi And Home Automation Projects Durable Fault Tolerant Design
Four independent 1-channel relay boards let you control high-power loads from a microcontroller or home automation controller. They are suitable for Arduino, Raspberry Pi, ARM, PIC, CNC machines, and similar projects.
✅ 12V DC coil with screw terminals for coil input
✅ Load capacity: AC 250V/10A, DC 30V/10A
✅ Optocoupler isolation to protect IO ports
✅ NO and NC contacts accessible through screw terminals
✅ Input wires: Coil +, Coil -, and Trigger; jumper to select high or low trigger
✅ Fault-tolerant design keeps the relay from energizing if the control line is broken
💡 What is a 12V relay module with optocoupler isolation used for in microcontroller projects? It helps you safely drive high-power devices from a low-voltage controller. - Handy for Arduino, Raspberry Pi, and other MCUs - Provides isolation to protect IO ports - Jumpers allow high/low trigger selection - Suitable for home automation and CNC projects
✝️