NE555 Monostable 5v timer relay

This is a NE555-based delay relay timer module designed for precise time control in electronic and automation projects. It allows adjustable delay timing from 0 to 10 seconds using a potentiometer, making it suitable for both beginner and advanced DIY applications.

The module works on 5V or 12V DC supply and uses a relay output capable of controlling electrical loads up to 220V AC / 10A. It includes optocoupler isolation on the signal side, which improves noise immunity and ensures stable operation in industrial and high-interference environments.

It is widely used in automation systems, motor delay control, safety circuits, car electronics, and home appliance timing applications.

⭐ Key Features

• NE555 timer-based precision delay control module
• Adjustable delay time from 0 to 10 seconds
• Supports 5V / 12V DC input supply
• Relay output suitable for AC 220V / 10A load control
• Optocoupler isolation for improved noise protection
• LED indicators for power and timing status
• Compact and easy-to-use design for DIY projects
• Ideal for automation, protection, and timing applications