Description
Product Description
The 1 Channel 5V Relay Module without Optocoupler is a compact relay switching module designed to control electrical loads using a microcontroller or development board. It provides a simple way to switch devices such as lamps, motors, fans, pumps, solenoids, and other electrical loads through a relay.
This single-channel relay module operates with a 5V relay coil and can be controlled using a digital control signal from compatible microcontrollers and development boards. The relay provides NO (Normally Open), NC (Normally Closed), and COM (Common) terminals for flexible load switching.
The module is suitable for Arduino projects, microcontroller applications, robotics, home automation, industrial prototypes, and DIY electronics.
Key Features
- Single-channel relay module
- 5V relay operation
- No optocoupler
- Simple control interface
- NO, NC, and COM relay contacts
- Compact PCB design
- Suitable for digital ON/OFF control
- Useful for switching higher-voltage or higher-current loads
- Suitable for Arduino and other compatible microcontrollers
- Ideal for robotics, automation, and DIY projects
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | 1 Channel Relay Module |
| Number of Channels | 1 |
| Relay Voltage | 5V |
| Optocoupler | Not Included |
| Relay Contacts | NO, NC, COM |
| Control Type | Digital ON/OFF |
| Application | Electrical Load Switching |
| Suitable For | Arduino, Microcontrollers, Robotics & DIY Electronics |
Relay Terminals
- COM – Common terminal
- NO – Normally Open
- NC – Normally Closed
Typical Applications
- Arduino relay projects
- Home automation
- Light and lamp control
- Fan control
- DC motor switching
- Water pump control
- Solenoid control
- Robotics projects
- Automation systems
- DIY electronic projects
Important Note
This module does not include an optocoupler, so it should not be treated as an optically isolated relay interface. The actual relay contact voltage/current rating depends on the specific relay fitted to the module. Always verify the relay markings and electrical ratings before connecting a load.
For mains-voltage applications, use appropriate electrical protection and safe wiring practices.
A 5V relay module is a type of interface module that is used to control a relay using a 5V digital signal from a microcontroller such as an Arduino. Relays are electrically-operated switches that can be used to control a variety of electrical devices, such as motors, lights, and appliances. The 5V relay module typically contains a small coil that is activated by the digital signal from the microcontroller, which causes a switch to close or open, turning the electrical device on or off. The use of a relay module allows a microcontroller to control high-power devices that it would not be able to control directly.
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