Life Hacks Instead of having to pulse, and calculate, there's an awesome library we can use to calculate distance with HY-SRF05 Module called New Ping. Easy Peasy.

Ultrasonic Distance Sensor Using an Ultrasonic Sensor coupled with an Arduino Uno to calculate distances between the sensor and objects.

We propose to make a little calculator realising the four basic arithmetical operations using one Arduino and a Nextion touch display. This calculator uses the Reverse Polish Notation, which may ...