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मूल्य सूची: Retail Price (B2C) मूल्य सूची
मूल्य सूची: Retail Price (B2C) मूल्य सूची
Sound Sensor Module Blue Intelligent Vehicle for Sound Detection

Sound Sensor Module Blue Intelligent Vehicle for Sound Detection

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SpecificationDetails
Operating VoltageDC 3.3V – 5.0V
Groove Width5 mm
Output TypeDigital (High/Low) and Analog
Comparator ICLM393 Dual Voltage Comparator
Output Drive Capacity>15mA
Indicator LEDsPower LED & Signal Status LED
PCB Dimensions32mm x 14mm
Price
₹ 50.85 ₹ 50.85
(Tax included)

बारकोड: 9315

Product Description

The Groove Coupler Sensor provides a clean, noise-free digital signal thanks to the onboard LM393 comparator. The sensing logic is straightforward: when the groove is unobstructed, the output is LOW; when an object blocks the IR beam (the "groove is coupled"), the output flips to HIGH. This "Active High" logic makes it extremely easy to count pulses using the external interrupt pins on an Arduino or Raspberry Pi. The module includes a mounting hole for secure attachment near motor shafts and two status LEDs for real-time visual debugging of the trigger state.

Key Features

  • Clean Digital Output: Integrated LM393 chip ensures a sharp square-wave signal without "bouncing."

  • Wide Slot Design: The 5mm groove accommodates various thicknesses of encoder disks and mechanical parts.

  • Dual Output Mode: Provides both a Digital output (DO) for pulse counting and an Analog output (AO) for real-time signal intensity.

  • High Sensitivity: Capable of detecting high-speed rotations with minimal lag.

  • Plug-and-Play: 4-pin interface allows for quick connection using standard jumper wires.

Technical Details

  • Pinout: VCC (3.3V-5V), GND, DO (Digital Output), AO (Analog Output).

  • Signal Logic: Output is HIGH when the beam is broken; LOW when the beam is clear.

  • Mounting: Fixed bolt hole (3mm) for easy installation.

Prototyping and Engineering Tips from Robogears

  • Calculating RPM: To measure motor speed, use a slotted encoder disk (typically 20 slots). In your code, count the number of pulses ($n$) in one second. The formula for RPM is:

  • Interrupt Usage: For high-speed motors, do not use the digitalRead() function in your main loop, as it may miss pulses. Instead, connect the DO pin to an Interrupt-capable pin (Pin 2 or 3 on Arduino Uno) and use attachInterrupt(digitalPinToInterrupt(2), countPulse, RISING);.

  • Ambient Light Interference: While the module is relatively stable, very bright direct sunlight can sometimes "leak" into the receiver and cause false readings. If using this outdoors, a simple black tape shroud or 3D-printed cover over the sensor head will ensure reliability.

  • Alignment is Key: Ensure your encoder disk is perfectly centered in the 5mm slot. If the disk wobbles and touches the sides of the groove, it will cause mechanical friction and eventually damage the IR LEDs.

  • Package Includes

    • 1 x Speed Measuring Sensor Groove Coupler Module

    • Disclaimer

    This module is designed for digital pulse counting and is not suitable for measuring the thickness of translucent materials. Ensure the input voltage does not exceed 5V to prevent damaging the LM393 comparator or the IR emitting diode.