On-bike car detection system

Project involved designing and manufacturing prototype of on-bike car detection system. Two devices were used: ESP32 board with distance sensor, and a Android phone.

Main goals

• detect distance to passing cars using ultrasonic sensor
• raise alarm when measured distance was lower than threshold
• make a car photo using Android device, using BT connection to trigger camera

Hardware

I've used ESP32 board with HC-SR04 ultrasonic sensor.

Software

I've made an Android app that connects to the ESP32. When ESP32 sends proper signal, app makes photo using phone camera.