In this section a simple use of the programming an arduino uno is depicted


This project is using an ultrasound sensor to triggre a light resistance into reading analog voltage on the arduino
and as a plus turning on the arduino builtin LED as long as the light sensor is triggered


What do we need


1- Arduino Uno

2- Arduino data cable

3- Ultrasound sensor

4- Bread board

5- Resistor for protecting the components

6- Connecting cables (male-male, female-male)

7- Light sensor / light resistor

7- computer equipped with the Arduino software

Getting to work : Connections


First We connect the components on the bread board in this following way, I am using here the software Tinkercad for better visualisation

The connection should look as depicted


Arduino code

The logic of the code is designed so when a hand gesture is interrupting the ultrasound sensor with a distance less than 5 cm
the arduino LED and the light sensor are triggered and the light sesnor data is read through the monitor
The code is depicted in the following pictures


Testing


after finializing the code it is time for a test

Resources


To download the code
Sound to LDR with comments
Sound to LDR