The 1CH 5V Relay Board is a reliable and versatile control module designed to switch high-voltage devices using a low-voltage control signal. It features both high and low-level trigger modes, making it suitable for a variety of microcontrollers, including Arduino, Raspberry Pi, and ESP32. The integrated optocoupler provides electrical isolation, ensuring safe operation when switching AC or DC devices.
Features:
Trigger Modes: Supports both High-level and Low-level trigger for flexible operation
Relay Rating: Switches AC devices up to 250V @ 10A and DC devices up to 30V @ 10A
5V Operating Voltage: Compatible with 5V systems such as Arduino and other microcontrollers
Optocoupler Isolation: Offers protection from electrical surges and noise interference
Low Trigger Current: Works with TTL logic, ideal for controlling via microcontroller digital pins
LED Indicators: Displays relay status (ON/OFF) clearly
Screw Terminals: Provides easy connection to Common (COM), Normally Open (NO), and Normally Closed (NC) terminals
Flyback Diode Protection: Protects the microcontroller from harmful voltage spikes when switching inductive loads
Mounting Holes: Pre-drilled for easy installation
Wide Compatibility: Works seamlessly with Arduino, Raspberry Pi, ESP32, and more
Package Includes:
1 × 5V 1-Channel Relay Board with Optocoupler (High/Low Level Trigger)