GitHub

Arduino + HC-SR04 distance-based LED feedback system

This schematic was designed using EasyEDA and shows the complete connection setup of the ultrasonic sensor (HC-SR04) with the Arduino UNO and two LEDs. It includes pin mappings, power rails, and ...
GitHub

Designed an obstacle detection system using HC-SR04 sensor + Arduino, with buzzer/LED alerts for objects <10 cm. Tested performance in real-world scenarios, optimizing signal ...

There was an error while loading. Please reload this page. // Clear the trigPin digitalWrite(trigPin, LOW); delayMicroseconds(2); // Set the trigPin HIGH for 10 ...
Hackaday

HC-SR04

The HC-SR04 sonar modules are available for a mere pittance and, with some coaxing, can do a pretty decent job of helping your robot measure the distance to the nearest wall. But when sellers on eBay ...
Hackaday

HC-SR04

Some of the best hacks are the ones which seem perfectly obvious in hindsight; a solution to the problem that’s so elegant, you wonder how it never occurred to you before. Of course we also love the ...
IEEE

Arduino-Driven Elevating Bridge Responsive to Water Level Variations using HC-SR04

Abstract: The automation of height-increasing bridges during floating events is a crucial engineering challenge in areas prone to flooding or water surges. It proposes a solution to adjust the bridge ...