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1CH 5v Optocoupler Relay Board

1CH 5v Optocoupler Relay Board-Robocraze
1CH 5v Optocoupler Relay Board-Robocraze
1CH 5v Optocoupler Relay Board-Robocraze
  • 1CH 5v Optocoupler Relay Board-Robocraze
  • 1CH 5v Optocoupler Relay Board-Robocraze
  • 1CH 5v Optocoupler Relay Board-Robocraze

1CH 5v Optocoupler Relay Board

Regular price
Rs. 62
Sale price
Rs. 62
Regular price
Rs. 84
You save Rs. 22
26% off
You save Rs. 22
Unit price
  • ⚡ Dispatched within 24 hours
  • 🚚 Free shipping on orders above Rs 500/-
  • 💰 Earn RC Coins on every purchase
  • 🛠️ Dedicated Technical Support Team
  • Equipped with high-current relay 7A@250VAC / 10A@24VDC
  • It can control both AC and DC appliances such as Solenoids, Motors, lights, fans, etc
  • High quality screw terminals (Terminal Block) provided (C, NC , NO) for quick and easy connection
  • Free wheeling diode to protect your microcontroller
  • Input Signal Pin connected to Burg stick for easy accessibility
  • LED Status indicators to indicate the relay ON/OFF status
  • Mounting holes provided

1 Channel Optocoupler Relay Board

Relay board module is used for controlling higher current loads from your microcontroller development board, PC parallel port, or Arduino Uno. This board has one (1) on-board relay which can switch up to 7Amps. Relays terminals (C, NC, NO) are accessible through screw terminals which makes wiring up the board very easy. The relay is safely driven by transistor BC547 hence your input device, such as Arduino, is protected from the relay circuit. There is a freewheeling diode that will further protect your microcontroller from relay kickback. Single-channel 12 volt relay connections are

  • Connect VCC to the 12-volt power supply
  • The control signal is used to control the relay. If the signal will be HIGH (5V) the relay will be switched to NO(Normally Open) and if the signal is LOW (0V) the relay will be switched to Normally Connected (NC)
  • If the control signal is high the led will glow and Vice- versa.

This is a 12V 1-Channel Relay interface board that can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, 8051, and so on.

Package Includes:

  • 1 x 1CH Optocoupler Relay Board


Number of Channels 
Operating Voltage  12V
Dimensions  3 x 2 x 1cms 
Weight  5 grams

1. Is an optocoupler required for a relay?

  • Yes, Relays usually are driven using optocouplers, which offer isolation between the analog and digital grounds to ensure that switching currents in the relay coils do not affect the noise margin of the digital circuit.

2. What is a 1 channel 5V relay board?

  • The 1 Channel 5V Relay board provides a single relay that can be controlled by any 5V digital output from your microcontroller. Screw terminals are used to access the relay, which can handle up to 2A of current. The status of the relay is indicated by a handy LED.

3. Where can I use the single-channel relay board?

  • The Single Channel Relay board is a convenient board that can be used to control high voltage, and a high current load such as motor, solenoid valves, lamps, and AC loads. It is designed to interface with microcontrollers such as Arduino, PIC and etc.