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Showing posts from April, 2018

Sensor Project - Reverse Proximity Sensor

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Display installed and powered by vehicle My sensor project makes use of the HC-SR04 ultrasonic distance sensor, an Arduino Uno, Arduino Nano and a 16x2 LCD display. The purpose of this project is to provide distance data to the driver when reversing and also warn them when they're getting dangerously close to an object with a series of different tones from the buzzer and a warning to stop on display.  The Arduino Nano is dedicated to reading from the sensor and calculating the distance before sending it over a serial link to the Arduino Uno. The Uno is dedicated to controlling the display, buzzer and changing the bar graph. The original plan was to run multiple sensors from the Nano, however the sensors I ordered from AliExpress didn't arrive in time for testing but there is still plenty of room for expandability. The display shows the distance reading as reported by the Arduino Nano, along with a basic bar graph with range between  140cm and 20cm. After 20cm it displa