A 5V 8-Channel Relay Module integrates eight independently controlled electromagnetic relays onto a single printed circuit board (PCB). This high-density switching array allows low-power microcontrollers (like Arduino, ESP32, NodeMCU, or Raspberry Pi) to coordinate up to eight separate high-voltage AC or DC loads simultaneously. It is the premier component across India for building comprehensive home automation distribution boxes, industrial multi-actuator sequence controllers, and automated test benches.
✨ Key Features
- Octa-Optocoupler Galvanic Shield: Packed with eight individual PC817 optocoupler chips that isolate the logic inputs from the switching circuitry via light, protecting your microcontroller from catastrophic back-EMF spikes.
- Mains Coil Power Isolation (JD-VCC): Outfitted with a standard JD-VCC / VCC jumper plug, letting you bypass the microcontroller’s power grid entirely and supply clean external power strictly to the mechanical coils.
- Low-Level Active Triggering: Operates on a Low-Level Trigger (0V) configuration by default. Grounding an input pin completes the internal optocoupler circuit and clicks the corresponding relay closed.
- Comprehensive Diagnostic Array: Features nine surface-mount LEDs; one to confirm stable Board Power (Red) and eight independent channel indicator LEDs (IN1 to IN8) to easily spot which relays are actively engaged.
Reviews
There are no reviews yet.