Description

DC3V-30V Touch Key Switch Sensing Module – 4-Wire Bistable Light Touch Switch

The DC3V-30V Touch Key Switch Sensing Module (4-Wire) is a versatile and user-friendly solution for LED lighting, DIY electronics, and interactive projects. This bistable touch-sensitive switch allows users to control devices with a simple touch, replacing traditional mechanical switches and providing smooth, silent operation.

Designed for compatibility with LED light bands, lamps, and low-voltage DC electronics, this 4-wire touch module offers jog and latch modes to suit a wide range of applications, making it ideal for DIY hobbyists, engineers, and home automation enthusiasts.

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Key Features

Wide Voltage Compatibility

The module operates efficiently across a DC voltage range of 3V to 30V, making it suitable for various LED lighting systems, low-voltage DC electronics, and battery-powered projects. This wide voltage range ensures reliable operation for both small LED strips and larger DIY electronics.

4-Wire Design

The 4-wire configuration provides separate input and output lines for simplified installation and stable operation:

• VCC – Connects to DC positive supply

• GND – Connects to DC ground

• OUT+ – Positive output for the load

• OUT- – Negative output for the load

This configuration enhances safety, flexibility, and ease of integration in various circuits, making it ideal for professional and DIY setups.

Bistable Touch Function

The bistable design ensures that each touch toggles the output:

• First touch: Turns the device ON

• Second touch: Turns the device OFF

With touch-sensitive control, the module eliminates mechanical wear, providing long-lasting, reliable performance for continuous use.

Jog and Latch Modes

This touch module supports both jog (momentary) and latch (bistable) modes, allowing flexible operation:

• Jog mode: Device remains ON only while the sensor is pressed

• Latch mode: Device toggles between ON and OFF states with each touch

This versatility makes it perfect for LED strips, home lighting, and interactive electronics.

Touch Sensing Technology

The module employs capacitive touch sensing, which detects a light finger press. No mechanical force is required, ensuring silent, smooth, and responsive operation.

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Applications

The DC3V-30V Touch Key Switch Sensing Module 4-Wire is suitable for a wide range of projects:

• LED Light Bands: Convenient touch-based control for strips and lamps

• Desk Lamps & Bedside Lighting: Easy on/off control without mechanical switches

• DIY Electronics Projects: Ideal for Arduino and Raspberry Pi integrations

• Automotive LED Projects: Low-voltage control for interior LED lighting

• Interactive Devices: Adds user-friendly touch interfaces to gadgets

Its compact and robust design allows integration into small enclosures, making it perfect for portable or embedded electronics projects.

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Benefits

• Compact Design: Easy to integrate into LED strips, small devices, and enclosures

• Touch-Sensitive Operation: Silent, smooth, and reliable switching

• Bistable and Jog Modes: Flexible control options for multiple applications

• Wide Voltage Range: Compatible with DC 3V to 30V devices

• 4-Wire Configuration: Simplifies installation and improves circuit reliability

• Durable and Maintenance-Free: No mechanical contacts to wear out

• Versatile Applications: Ideal for LED lighting, DIY electronics, and automation

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Installation and Usage

Installation is simple and intuitive:

1. Connect VCC to the positive DC supply and GND to ground.

2. Connect OUT+ and OUT- to your LED strip or device load.

3. Touch the sensor pad to toggle the device ON/OFF.

No additional components are required, and the module works seamlessly with low-voltage DC circuits, making it DIY-friendly.

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Conclusion

The DC3V-30V Touch Key Switch Sensing Module 4-Wire is an essential component for modern electronics projects, offering touch-sensitive, bistable control for LED strips, lamps, and DIY devices. Its wide voltage range, jog/latch functionality, and robust 4-wire design make it suitable for home, educational, and professional electronics applications.

Invest in this touch switch module to enhance your electronics projects with modern, reliable, and intuitive control, while eliminating mechanical wear and adding a sleek touch interface.