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With a 5V 1-Channel Relay Module, microcontrollers switch high-voltage AC or DC appliances. It manages up to 10A at 250VAC or 30VDC through a single signal input. Optocoupler isolation blocks electrical noise from reaching the control board.
Key Features
- Optocoupler Isolation: Physical separation between input and output circuits. Stops back-EMF from damaging microcontrollers during sudden voltage fluctuations.
- Adjustable Trigger: Jumper-selectable High (3-5V) or Low (0-1.5V) logic levels. Matches the 5V relay trigger module to various sensor outputs.
- 10A Load Rating: Switching capacity for 250VAC or 30VDC loads. Manages household appliances or DC motors during frequent load shedding.
- Compact Footprint: 50x26x18.5mm board with 3.1mm mounting holes. Fits inside tight project enclosures or custom junction boxes.
- Dual LED Indicators: Onboard red and green status lights. Provides immediate visual confirmation of power and relay activation.
Frequently Asked Questions
How to connect 5V relay to Arduino?
Connect the VCC, GND, and IN pins to the Arduino power and digital headers. Use the onboard jumper to set the trigger level for the single channel relay module Arduino logic.
What is high and low level trigger in relay?
High level trigger requires 3V to 5V on the input pin to close the relay. Low level trigger completes the circuit when the input signal drops below 1.5V.
