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मूल्य सूची: Retail Price (B2C) मूल्य सूची
मूल्य सूची: Retail Price (B2C) मूल्य सूची
KY-036 Metal Touch Interface Sensor Module for Arduino

KY-036 Metal Touch Interface Sensor Module for Arduino

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SpecificationDetails
Operating VoltageDC 3.3V – 5V
Transistor TypeKDS9013 Darlington Pair
Main ChipsetLM393 Voltage Comparator
Output TypeDual (Analog & Digital)
Current Consumption~10mA
SensitivityAdjustable via Onboard Potentiometer
PCB Dimensions35mm x 15mm
Price
₹ 72.03 ₹ 72.03
(Tax included)

Product Description

The KY-036 Metal Touch Sensor features a distinct metal pin protruding from the front of the PCB which acts as the primary sensing element. When a conductive object (like a finger) touches this pin, the Darlington transistor amplifies the signal, which is then processed by an LM393 comparator. The module provides a Digital Output (D0) that switches from LOW to HIGH upon contact, and an Analog Output (A0) that provides a real-time voltage level corresponding to the intensity of the touch or the proximity of the conductive body. This dual-output nature allows for both simple "on/off" logic and complex signal processing.

Key Features

  • Dual Output Mode: Simultaneously provides digital trigger signals and analog intensity data.

  • Adjustable Threshold: The onboard blue multi-turn potentiometer allows you to fine-tune the touch sensitivity.

  • Visual Indicators: Features two LEDs—one for power status and another that lights up when a touch is detected.

  • Non-Contact Potential: At high sensitivity, it can act as a proximity sensor for large metal masses without direct physical contact.

  • Compact Integration: Standard 4-pin header (VCC, GND, D0, A0) for easy wiring with jumpers.

Technical Details

  • Pinout: 1. AO: Analog output voltage. 2. GND: Ground. 3. VCC: 3.3V-5V Power. 4. DO: Digital output (TTL level).

  • Control: 10K Ohm Potentiometer for sensitivity adjustment.

  • Mounting: Single 3mm screw hole for secure mechanical fastening.

Prototyping and Engineering Tips from Robogears

  • Sensitivity Calibration: Turn the potentiometer clockwise to increase sensitivity. If the "Status LED" stays on constantly without being touched, turn it counter-clockwise until the LED just turns off. This ensures the module is at its peak sensing threshold.

  • External Sensor Extension: If your project requires the touch point to be away from the PCB, you can solder a thin copper wire to the base of the metal sensing pin and attach it to a decorative metal plate or a conductive "Touch Pad."

  • Signal Stability: The analog output (A0) can be "noisy" because it picks up 50Hz/60Hz hum from nearby AC power lines. In your Arduino code, use a small delay or a software "Debounce" logic to ensure one touch isn't registered as multiple clicks.

Package Includes

  • 1 x KY-036 Metal Touch Sensor Module

Disclaimer

This sensor requires direct skin or metal contact for standard operation. It will not work through thick plastic or insulated gloves. Always ensure your power supply is grounded correctly to the microcontroller to avoid false triggers from floating voltages.