Description
4-channel relay board that allows you to control up to four high-voltage devices using Arduino, ESP8266/ESP32, PLC, or any microcontroller. Built with optocoupler isolation to protect your controller from electrical noise and high voltage.
⚙️ Specifications
-
Channels: 4 Relays
-
Operating Voltage: 5V DC
-
Isolation Type: Optocoupler Isolation
-
Trigger Mode: Selectable High-Level or Low-Level Trigger
-
Status LED indicator for each channel
-
Relay Terminals: COM / NO / NC
-
Contact Rating (per relay):
-
10A @ 250V AC
-
10A @ 30V DC
-
🔌 Pins
-
VCC → 5V supply
-
GND → Ground
-
IN1 – IN4 → Control signals from microcontroller
-
JD-VCC → Separate relay power (optional isolation)









Reviews
There are no reviews yet.