Human Presence Sensing PIR Motion Sensor Relay Module Adjustable Delay & Dual Mode DC 5V

Product Description:
The Infrared Sensing Relay Module is a highly adaptable and intelligent motion detection solution designed to detect human presence and activate a relay accordingly. It features dual operational modes, adjustable sensitivity, and customizable delay timing, making it ideal for automation, lighting control, smart appliances, and energy-saving systems. Powered by a 5V DC source and based on the STC8G1K08A microcontroller, this module provides reliable performance with flexibility for customization and development.

Key Features:

• Dual Operating Modes:

  • Mode 1 (Unrepeatable Trigger): Relay activates when motion is detected and turns off after the set delay time.

  • Mode 2 (Repeatable Trigger): Relay stays activated as long as motion continues to be detected.

  • Mode selection is easily configured using a jumper cap.

• Adjustable Sensitivity:

  • Fine-tune motion detection range using the sensitivity adjustment knob (counterclockwise increases sensitivity).

• Adjustable Delay Timing:

  • Set how long the relay remains active after detecting motion (clockwise increases delay duration).

• PIR Motion Detection:

  • Uses the BM412 infrared sensor for reliable detection of human presence.

• Built-in STC8G1K08A MCU:

  • Ensures stable logic control with additional cascading port for program burning and custom firmware development.

• Stable Relay Output:

  • 5V relay can be used to control lights, fans, alarms, or other low-voltage devices.

Technical Specifications:

• Power Supply: DC 5V

• Sensor: BM412 PIR motion sensor

• Microcontroller: STC8G1K08A

• Relay Type: Standard 5V relay

• Sensitivity Adjustment: Manual (knob-based)

• Delay Time Adjustment: Manual (knob-based)

• Cascade Port: Yes, for program burning or firmware development

• Mode Selection: Via jumper cap

  • No jumper: Mode 1

  • Jumper inserted: Mode 2

How to Use:

1. Power the module using a 5V DC source.

2. Select desired mode by placing or removing the jumper cap:

   • Mode 1: Relay auto-off after delay.

   • Mode 2: Relay stays on with continued presence.

3. Adjust sensitivity for range and delay duration for control timing using the onboard knobs.

4. Use relay output to control connected devices like lights or buzzers.

Applications:

• Smart home automation

• Motion-triggered lighting

• Intrusion detection systems

• Office and corridor energy-saving lighting

• DIY electronics and IoT automation

Package Includes:

• 1 x Infrared Sensing Relay Module with PIR Motion Sensor

Why Choose This Module?
With dual operating modes, adjustable controls, and expansion options for developers, this module offers a versatile and reliable solution for intelligent motion-based control systems. Easy to integrate and customize, it's ideal for both beginners and experienced makers looking to automate environments effectively.

Upgrade your automation setup with smart motion sensing—order now and bring intelligence to your projects!