THIS CODE WILL PROVIDE A DEMO USE OF THE HC-SR04 CONNECTED TO AN ARDUINO NANO (ATmega328p) THINGS YOU NEED FOR THIS DEMO: 1.) Install Arduino IDE 2.) Install CH340 Driver (Google how to install CH340 ...

The current code is written for the NodeMCU V2 board (an ESP8266 breakout board) but is easily modifiable to work with most if not any arduino compatible device. CAUTION: Note that the ECHO voltage ...

ABSTRACT: In this study, a simple Arduino-based experiment was designed to examine the acceleration of the object during free fall and to calculate the value of “g” (acceleration due to gravity).