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Getting Started

What You'll Need

Before starting with your Kaush Sound Sensor v1.0, ensure you have all the required components and software ready.

Hardware Requirements

Essential Components:

  1. ✅Kaush Sound Sensor v1.0
  2. ✅Microcontroller (Arduino Nano, ESP32, or Raspberry Pi)
  3. ✅USB cable (for programming the microcontroller)
  4. ✅Jumper wires (male-to-female recommended)
  5. ✅Breadboard (optional, but highly recommended for prototyping)
  6. ✅Power supply (4V–12V) or USB power

Optional Components:

  1. 🔧Multimeter → For verifying voltage and connections
  2. 🔧Audio source (speaker, phone, or buzzer) → For testing sound detection

Software Requirements

For Microcontroller Programming:

  1. Arduino IDE (v1.8.0 or later)
  2. USB drivers for your microcontroller
  3. Kaush Sound Sensor library (provided)

Step-by-Step Setup

Step 1: Choose Your Platform

Select your preferred microcontroller platform. Each has its advantages:

Arduino Nano Setup Complete Arduino Nano setup with Kaush Sound Sensor

Advantages: - Easy to program with Arduino IDE - 5V operation matches sensor well - Large community support - Real-time sampling up to 4kHz

Option B: ESP32 (WiFi Enabled)

ESP32 Setup ESP32 setup enabling wireless data transmission

Advantages: - Built-in WiFi for wireless data - Higher processing power - IoT integration capabilities - Web-based control possible

Option C: Raspberry Pi (Advanced Features)

Advantages:

  • Linux-based advanced processing
  • Multiple communication interfaces
  • Can run desktop application directly
  • Real-time DSP capabilities

Step 3: Basic Wiring (Arduino Nano Example)

Connection Table:

Kaush Sensor Pin Arduino Nano Pin Function
VCC 5V Power Supply
GND GND Ground
FILTERED_OUT A0 Analog Signal

Step 4: Power Supply Connection

Power Supply Options Different power supply methods for the sensor

Power Options:

USB Power (5V) - Simplest Method

Arduino Nano USB → Computer USB Port
Sensor VCC → Arduino 5V Pin
Sensor GND → Arduino GND Pin

External Power (6V-12V) - Maximum Performance

External Supply → Arduino VIN Pin
Sensor VCC → Arduino 5V Pin (regulated)
Sensor GND → Arduino GND Pin

Battery Power (Portable Operation)

4x AA Batteries (6V) → Arduino VIN Pin
Or 9V Battery → Arduino VIN Pin

Step 5: Software Installation

Download Required Software

Arduino IDE Setup:

  1. Download Arduino IDE from arduino.cc
  2. Install USB drivers for your microcontroller
  3. Download Kaush Sound Sensor library from our GitHub

Library Installation

Method 1: Arduino IDE Library Manager

  1. Open Arduino IDE
  2. Go to Sketch → Include Library → Manage Libraries
  3. Search for "Kaush Sound Sensor"
  4. Click Install

Method 2: Manual Installation

  1. Download library ZIP from GitHub
  2. Go to Sketch → Include Library → Add .ZIP Library
  3. Select downloaded ZIP file
  4. Verify installation in Examples → Kaush Sound Sensor

Step 6: Upload Test Code

Basic Test Code:

  1. Open Arduino IDE
  2. Go to File → Examples → Kaush Sound Sensor → BasicTest
  3. Select correct board: Tools → Board → Arduino Nano
  4. Select correct port: Tools → Port → COM_X
  5. Click Upload button

Step 7: Initial Calibration

Calibration Procedure:

8.1 Baseline Setting

  1. Environment: Start in quiet environment
  2. 200K Pot: Turn clockwise until you see waveform on the Kaush Software (12 o'clock)
  3. 10K Pot: Once 200k pot is successfully calibrated, you can turn this clock-wise to increase the gain and anticlock-wise to decrease the gain
  4. Monitor: Watch serial output for baseline ~VCC/2

8.2 Sensitivity Adjustment

  1. Test Sound: Speak normally at 30cm distance
  2. 200K Pot: Slowly increase until clear signal appears
  3. Fine-tuning: Adjust 10K Pot for desired amplitude (1-2V peak)
  4. Verification: Test at different distances

8.3 Optimal Settings

Quiet Environment:

- Expected Output: 1.5V baseline, 2-3V with speech

Noisy Environment:

- Expected Output: Reduced baseline, clear speech signals

Quick Start Video Tutorial

Complete Setup Guide

Watch our comprehensive setup tutorial covering all steps:

Getting Started Tutorial

Potential First-Time Issues

Issue 1: No Serial Output

Symptoms: Arduino IDE serial monitor shows no data Solutions:

  1. Verify COM port selection
  2. Check baud rate (115200)
  3. Ensure USB cable supports data (not charge-only)
  4. Try different USB port
  5. Calibrate Sensor Again
  6. Reconnect supply or try different Power Supply
  7. Push the reset/restart button of microcontroller(ESP32 or Arduino)

Issue 2: Constant High/Low Readings

Symptoms: Sensor output stuck at 0V or VCC Solutions:

  1. Check power supply voltage (4-12V range)
  2. Verify wiring connections
  3. Adjust 200K potentiometer
  4. Test with multimeter
  5. Check whether GND and VCC are swapped accidentally

Issue 3: No Response to Sound

Symptoms: Output doesn't change with audio input Solutions:

  1. Increase 10K potentiometer (gain)
  2. Verify microphone is not blocked
  3. Test with louder sounds first
  4. Check pre-amp output (A2 pin)
  5. Clean the bottom side of sensor

Issue 4: Desktop App Won't Connect

Symptoms: Cannot establish COM port connection Solutions:

  1. Install Arduino USB drivers
  2. Close Arduino IDE serial monitor
  3. Check Windows Device Manager
  4. Check Arduino

Success Indicators

When your setup is working correctly, you should see:

  • 🟢 Stable baseline around VCC/2 in quiet conditions
  • 🟢 Clear waveforms when speaking at normal volume
  • 🟢 Responsive adjustments when turning potentiometers
  • 🟢 Real-time display in desktop application
  • 🟢 Meaningful FFT data showing voice frequencies

Next Steps

Congratulations on completing the basic setup! You're now ready to:

  1. Explore Pin Configuration - Learn about advanced wiring options

Need Help?

Ready to dive deeper? Continue to Pin Configuration for advanced connection options.