4-Channel 5V Relay Module | Optocoupler Isolated for Arduino
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 黑木一香 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 黑木一香s 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 (黑木一香 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, 保姆+中文字幕+bt, or RF modules.
✔ DIY 保姆+中文字幕+bt & 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
16×2 LCD Display Module (Blue Backlight) – HD44780 Arduino Compatible
The classic 1602 Character LCD provides a bright 16-character by 2-line display, essential for user 雅俗共赏 in 保姆+中文字幕+bt projects.
-
Display: 16 Characters x 2 Lines
-
Color: White Text on Blue Background
-
Controller: HD44780 (Standard Library Support)
-
Voltage: 5V DC
-
Interface: Parallel (4-bit or 8-bit)
-
Backlight: LED
20×4 LCD Display Module (Blue Backlight) | 2004A Character Screen
-
Size: 20 Characters x 4 Lines.
-
Display: White Text on Blue Background.
-
Controller: HD44780 (Standard Industry Chip).
- Best For: Weather Stations, 3D Printers, and Advanced Menus.
3×4 Matrix Membrane Keypad Module | 12 Button Numeric Pad
A simple and reliable input device for Arduino and DIY 保姆+中文字幕+bt projects. This flexible 12-key keypad provides only the essential keys (0–9, *, #)—no letters—making it ideal for numeric-only applications. It comes with a peel-and-stick adhesive backing for quick mounting on enclosures, panels, or doors.
-
Keys: 12 (Telephone-style layout)
-
Interface: 7 pins (2.54 mm standard pitch)
-
Mounting: Self-adhesive sticker backing
- Best for: Electronic door locks, vending machines, access control systems, phone dialers, and keypad-based Arduino projects.
BMP180 Digital Barometric Pressure & Altitude Sensor Module
Predict the weather or measure your altitude. The BMP180 is a high-precision sensor that measures air pressure and temperature. Because pressure changes with height, it also works as an incredibly accurate altimeter (±1 meter accuracy).
-
Measures: Pressure (Pa) & Temperature (C)
-
Interface: I2C (SDA/SCL)
-
Voltage: 3.3V to 5V Compatible
-
Best For: Weather stations, Drones, and GPS altitude correction.
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
LDR Photosensitive Sensor Module (4-Pin) | Light Detector
- Sensor Type: Light Dependent Resistor (Photoresistor).
-
Outputs: Digital (D0) & Analog (A0).
-
Sensitivity: Adjustable via Blue Potentiometer.
- Best For: Automatic Lights, Sun Trackers, and Laser Tripwires.
MQ-135 Air Quality & Hazardous Gas Sensor Module | CO2, Smoke, Ammonia
Detect smoke and dangerous gases instantly. The MQ-135 is the most versatile gas sensor for air quality monitoring. It detects a wide range of gases including Ammonia, Sulfide, Benzene, Smoke, and CO2. Perfect for "Smart Home" safety systems and environmental monitoring.
- Gases Detected: NH3, NOx, Alcohol, Benzene, Smoke, CO2.
-
Output: Analog (Gas Concentration) and Digital (Alarm Trigger).
-
Warm-up Time: ~20 seconds.
-
Best For: Air Quality Monitors, Smoke Alarms, and Industrial Safety.
Sound Sensor Module (Microphone) | Clap Switch & Alarm Detector
Turn on lights with a clap! This microphone module detects sound waves and converts them into a digital signal for your Arduino. It is the core component for "Clap Switch" projects and noise-activated alarms.
-
Sensitivity: Adjustable via Blue Potentiometer.
-
Outputs: Digital (Gate) and Analog (Waveform).
-
Microphone: High-Sensitivity Condenser Mic.
-
Best For: Clap Switches, Baby Monitors, and Noise Alarms.
Reviews
There are no reviews yet.