5V 1-Channel Relay Module with Optocoupler Isolation
Standard 5V single-channel relay board with optocoupler isolation for safely switching AC 220V home appliances using Arduino, ESP32, or Raspberry Pi.
5V 1-Channel Relay Module with Optocoupler Isolation is an authentic, engineering-grade hardware component designed for prototyping, robotics, and academic research. Includes verified schematics, pre-tested hardware, and nationwide express shipping across Pakistan.
The 5V 1-Channel Optocoupled Relay Module allows low-voltage microcontrollers to safely switch high-voltage, high-current AC mains devices like bulbs, fans, water pumps, and solenoids.
Key Engineering Features:
- Optical Isolation (PC817 Optocoupler): Complete electrical barrier between your sensitive microcontroller GPIOs and high-voltage AC mains noise.
- High-Current Relay Contacts: Rated to switch up to 250V AC at 10A or 30V DC at 10A.
- Form C Contacts: Features NO (Normally Open), NC (Normally Closed), and COM (Common) screw terminals.
- Diagnostic LEDs: Green Power LED and Red Relay Status LED show switching state at a glance.
Common Engineering Applications:
- Smart home automation and room light switching via WiFi (ESP32/ESP8266)
- Automatic water pump controllers with float switch triggers
- Temperature-controlled cooling fan or heating element relays
- Security siren and gate solenoid actuators
What's Included in the Package:
- 1x 5V 1-Channel Optocoupled Relay Module Board
Quick Build & Interfacing Guide:
Unbox and verify all pre-tested sensors, microcontrollers, and wiring components included in your package.
Secure mechanical brackets, servos, and modules to the main frame using the provided mounting hardware.
Interface VCC, GND, and GPIO signal lines according to the verified schematic diagram provided with the kit.
Upload the tested source code via Arduino IDE, Python, or ESP-IDF and verify live sensor readings and actuation.
Need a Custom 3D Printed Casing or Multilayer PCB?
Get custom snap-fit enclosures and robotics parts printed via our custom 3D printing service in Lahore & Pakistan, or order industrial double-sided circuit boards through our custom PCB fabrication service with nationwide delivery.
Key Features
Specifications
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