Modul detector de metale simplu

Product Description:

The Metal Detector Module is a compact and fully functional metal detection solution. No external circuitry is needed – just power it on and start detecting hidden "treasures" under couch cushions or for DIY electronics projects. This module uses a spiral PCB trace as an inductive coil, forming a Colpitts oscillator that reacts to the presence of metal by triggering an audible alert via the built-in buzzer.

Main Features:

• Integrated coil: Spiral PCB traces on both sides act as the metal detection inductor.
• Audible alerts: Built-in buzzer sounds when metal is detected.
• Adjustable sensitivity: Onboard potentiometer (R3) allows fine-tuning of detection sensitivity.
• Simple operation: Operates from a 3V to 5V power supply, suitable for use with microcontrollers or batteries.
• Compact design: Includes 4 mounting holes for easy integration into enclosures or custom mounts.

Technical Specifications:

• Oscillator type: Colpitts
• Operating frequency: approx. 300 kHz
• Power supply: 3V – 5V
• Output alert: Built-in buzzer
• Sensitivity adjustment: Potentiometer R3
• Power connector: 2-pin JST (current version with SMD components)
• Mounting: 4 screw holes

Package Contents:

• 1x Metal Detector Module with built-in buzzer and coil