4 Channel Isolated 5V 10A Relay Module opto coupler For Arduino PIC AVR DSP ARM

Description

The 4 Channel Isolated 5V 10A Relay Module opto coupler For Arduino PIC AVR DSP ARM is a high-grade, precision-tested electronic component designed for reliable performance in prototyping, education, industrial control, and custom hardware engineering.

🔹 Key Features

• •In addition, each relay can be individually controlled through dedicated input pins, allowing multiple devices to be switched independently
• •As a result, the module is ideal for home automation, industrial control systems, robotics, IoT projects, and appliance control applications
• •Because of its opto-coupler isolation design, the relay board helps protect sensitive microcontrollers from electrical noise and voltage spikes
• •Furthermore, onboard status LEDs provide clear indication of relay activation and power status
• •The module supports both AC and DC load switching, making it suitable for controlling lamps, fans, pumps, motors, solenoids, and various household appliances
• •Moreover, the high-quality relay contacts ensure reliable long-term operation under demanding conditions

🔹 Technical Specifications

🔹 Pin Configuration & Wiring

Interactive Silicon Pinout & GPIO Mapping

ESP32 DevKitArduino Uno

All PinsI2C / SPI / UARTADC AnalogDigital GPIOPower & GND

5V3.3VPin 13 (SCK)Pin 11 (MOSI)Pin 9 (PWM)Pin A0Pin A4 (SDA)Pin A5 (SCL)

COMM PIN

Pin 13 (SCK)

Electrical Limit: 5.0V Max

Board Logic

5V Logic (7-12V VIN)

Mapped Silicon Functions

SPI SCK (Clock)Built-in 'L' LED

Hardware Engineering Note

Connected directly to onboard yellow LED and SPI hardware clock bus.

Arduino / C++ Quick CodeReady to flash

pinMode(LED_BUILTIN, OUTPUT);
digitalWrite(LED_BUILTIN, HIGH);

Verified Genuine Silicon Layout100% Physical Pin Match

🔹 Applications

This component is engineered and suitable for:

• •Microcontroller interfacing (Arduino, ESP32, Raspberry Pi, STM32)
• •IoT telemetry, environmental monitoring, and smart home systems
• •Robotics navigation, obstacle detection, and motion sensing
• •STEM education, university electronics labs, and maker prototyping

🔹 Package Includes

• ✓1 × 4 Channel Isolated 5V 10A Relay Module opto coupler For Arduino PIC AVR DSP ARM