Smart shoe’s for Blind Person using Arduino

Shoe is not part of project.

Project Requirements:

• Arduino Nano microcontroller
• Ultrasonic sensor (HC-SR04 commonly used)
• Buzzer
• Breadboard
• 9V Battery with Clip
• Jumper Wire’s

Objective:

• Measure object distance using the ultrasonic sensor.
• Generate buzzer beeps with on/off durations varying based on the measured distance:
  • 40 cm distance: 600 ms on, 600 ms off
  • 30 cm distance: 450 ms on, 450 ms off
  • 20 cm distance: 300 ms on, 300 ms off
  • 10 cm distance: 150 ms on, 150 ms off

Improved Response:

Hardware Connections:

1. Ultrasonic Sensor:
   • VCC pin to Arduino’s 5V pin.
   • GND pin to Arduino’s GND pin.
   • TRIG pin to any Arduino digital pin (e.g., D2).
   • ECHO pin to another Arduino digital pin (e.g., D3).
2. Buzzer:
   • Choose a buzzer suitable for Arduino’s voltage (usually 5V or 3.3V) and connect it in series with a resistor (e.g., 220 ohms) to protect it from excessive current. Resistor is optional.
   • Connect the resistor-buzzer combination to a PWM-capable Arduino pin (e.g., D8 or D9).