4-Channel 5V Relay Module | Optocoupler Isolated for Arduino
₵40.00 Original price was: ₵40.00.₵38.00Current price is: ₵38.00.
Control 4 appliances with one board. This module contains 4 separate relays, allowing your Arduino or ESP32 to switch up to 4 high-voltage devices ON and OFF. It features Optocoupler isolation to protect your microcontroller from electrical noise and surges.
-
Channels: 4 Independent Relays.
-
Trigger: Low Level (Connect Input to GND to switch ON).
-
Load Capacity: 10A @ 250V AC / 10A @ 30V DC.
-
Best For: Home Automation, Smart Switches, and Industrial Control.
4 in stock
The 4-Channel 5V Relay Module (Low-Level Trigger) is a versatile and efficient relay switch that allows Arduino, Raspberry Pi, ESP32, and other microcontrollers to safely control high-voltage electrical appliances. Designed for home automation, industrial control, and IoT applications, this module supports simultaneous switching of up to four devices, making it perfect for smart home systems, robotics, and remote control projects.
🔹 Reliable & Safe Switching with Optocoupler Isolation 🔌
✔ Operating Voltage: 5V DC (Microcontroller Compatible).
✔ Trigger Type: Low-Level Trigger (Active LOW Switching).
✔ Relay Rating: AC 250V/10A | DC 30V/10A per channel.
✔ Optocoupler Protection: Prevents interference & enhances stability.
✔ LED Indicators: Each relay has an indicator LED for easy debugging.
✔ Screw Terminals: Secure connections for high-voltage devices.
✔ Compact & Durable Design: Perfect for embedded systems and automation projects.
🔹 Applications – Where to Use the 4-Channel 5V Relay Module 🛠️
✔ Smart Home Automation – Control lights, fans, and appliances remotely.
✔ Industrial & Security Systems – Manage alarms, motors, and electronic locks.
✔ Arduino & Raspberry Pi Projects – Integrate with IoT for cloud-based control.
✔ Remote Relay Switching – Enable relay activation via Wi-Fi, Bluetooth, or RF modules.
✔ DIY Electronics & Robotics – Use in smart circuits requiring multi-device control.
🔹 How to Use & External Resources 📚
The 4-Channel Relay Module connects easily to Arduino, ESP8266, STM32, and Raspberry Pi via a LOW (0V) trigger signal on the IN1, IN2, IN3, and IN4 pins. Simply connect VCC, GND, and control signals, and switch high-voltage devices safely.
📖 Helpful Resources for the 4-Channel 5V Relay Module:
✔ YouTube Tutorials – 4-Channel Relay Module with Arduino
🔹 Best Price & Availability in Ghana 🇬🇭
Looking for a 4-Channel 5V Relay Module (Low-Level Trigger) in Ghana? Whether for home automation, industrial control, or IoT projects, this efficient and reliable multi-device relay module is a must-have. Order today for fast delivery across Ghana!
Related products
16-in-1 Sensor Module Kit for Arduino, ESP32 & Raspberry Pi
Expand your project possibilities instantly. This value-packed kit contains 16 of the most popular sensors for home automation and robotics. Instead of buying modules individually, get everything you need in one box.
-
Includes: DHT11 Temperature, Relay, Ultrasonic, Motion Sensor, and 12 more!
-
Compatibility: Works perfectly with Arduino Uno, Mega, Nano, and Raspberry Pi.
-
Perfect For: Learning how to read data and control devices.
433MHz RF Transmitter & Receiver Kit | Wireless Module for Arduino
Cut the cord. Go wireless. This kit includes one Transmitter and one Receiver. It is the simplest and most affordable way to send data wirelessly between two Arduinos up to 100 meters (with antenna).
-
Frequency: 433MHz
-
Includes: 1x Transmitter (Square), 1x Receiver (Rectangle)
-
Modulation: ASK (Amplitude Shift Keying)
-
Best For: Remote control cars, weather stations, and wireless switches.
DS3231 RTC Real-Time Clock Module
The DS3231 is a highly accurate I2C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO).
-
Chip: Maxim DS3231 (High Precision)
-
Memory: Built-in AT24C32 32K I2C EEPROM
-
Voltage: 3.3V – 5.5V DC
-
Interface: I2C (SCL, SDA)
-
Battery Backup: Holds time when power is off (Coin cell slot included)
-
Accuracy: Much higher than the standard DS1307
Flame Sensor Module (YG1006) | Infrared Fire Detector for Arduino
-
Sensor Type: YG1006 NPN Phototransistor (High Speed).
-
Detection Range: Up to 1 meter (depending on flame size).
-
Spectrum: 760nm - 1100nm (Invisible IR light).
-
Best For: Fire Fighting Robots, Smart Kitchen Alarms, and Safety Systems.
HC-SR501 PIR Motion Sensor Module | Infrared Detector for Arduino
Build your own burglar alarm or automatic light. The HC-SR501 detects human and animal movement by sensing body heat. It is the standard motion sensor for Arduino security projects.
-
Range: Adjustable (3 to 7 meters)
-
Output: 3.3V Logic (High when motion detected)
-
Features: Adjustable Time Delay & Sensitivity
-
Ideal For: Automated lighting, security systems, and robotics.
High Sensitivity Vibration Sensor Module (SW-1801P) | Shock & Shake Switch
Detect even the slightest tap. Unlike standard vibration sensors that require a hard shake, the SW-1801P High Sensitivity module can detect light knocks, impacts, and vibrations. Perfect for anti-theft alarms and "Smart Wake-Up" devices.
-
Sensor Type: SW-1801P (High Sensitivity Spring).
-
Output: Digital (High/Low).
-
Adjustable: Blue Potentiometer to set sensitivity trigger.
-
Best For: Anti-Theft Alarms, Earthquake Detection, and Smart Toys.
Soil Moisture Sensor Module (YL-69) | Automatic Plant Watering System
Never forget to water your plants again. The Soil Moisture sensor measures the water content in soil. When the soil gets dry, the sensor output changes, allowing your Arduino to turn on a water pump automatically.
-
Outputs: Analog (Exact moisture level) & Digital (Threshold switch)
-
Adjustable: Set your "Dry" trigger point with the blue potentiometer.
-
Ideal For: Smart irrigation systems, greenhouse monitoring, and science projects.
SW-420 Vibration Sensor Module | Adjustable Impact & Shake Switch
- Sensor Type: SW-420 (Normally Closed).
- Output: Digital (High/Low).
- Sensitivity: Adjustable via Blue Potentiometer.
- Best For: Anti-Theft Alarms, Smart Cars, and Impact Detection.

Reviews
There are no reviews yet.