This sketch is an example of 2 units of HC-SR04 Ranging Module connected to Arduino Uno ATMega 238. The dual HC-SR04 trigger by the same output pin 2 and echo at pin 3 (PCINT19) and 4 (PC ...

A very simple HC-SR04 example to go with the Youtube video. - Arduino_HC-SR04/Arduino_HC-SR04.ino at master · LessonStudio/Arduino_HC-SR04 ...

Posted in Arduino Hacks, Beer Hacks Tagged arduino nano, beer run?, HC-SR04, oled display, tall boy, ultrasonic ...

The complete Arduino Levitation circuit is shown below and the working principle of the circuit is very simple. The main component of this project is an Arduino, L239D motor driving IC, and ultrasonic ...