Скачать или смотреть Piezoelectric sensors and Arduino Uno Car Speed Detecter

s In this project, I built an automated Speed Tracker for toy cars using an Arduino Uno. This system replaces manual stopwatches with high-precision piezoelectric vibration sensors to measure velocity across a 1-meter track.

How it works:

Start Line: When the car passes the first sensor, a Green LED turns on, a buzzer chirps, and the timer starts.

Finish Line: When the car hits the second sensor, a Red LED turns on and the timer stops.

Calculation: The Arduino calculates the speed using the formula: Speed = Distance / Time.

Display: The final speed (m/s) and elapsed time are displayed on a 1602 I2C LCD screen for 30 seconds before resetting.

Key Components:

Arduino Uno

1602 LCD with I2C Module

Piezoelectric Vibration Sensors

Active Buzzer & LEDs

Powered by a USB Power Bank for portability

This is a perfect STEM project for school science fairs, demonstrating the intersection of physics, electronics, and coding!

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Science project for kids
Piezoelectric sensors
Arduion Uno Car Speed Detecter
Project for kids