Big scaffolding and connection and coding Arduino

First of all I needed to sign on the slat the distance from the extremities, so that once all was tied I could move and adjust the lengths of the tied slats

Then, I started to tie the rods with the twine. As I made a smaller one before, I learnt how to tied them.

After that, I could positioning the ultrasonic sensor to detect how far is the audience and, given a certain distance, they will activate the two step motors, which will pull two opposite joints of the cube, making it move. To know how to connect the wires fro the motors and sensor to Arduino, I looked at the system I used for kinetic sculpture before but I this time I had two servo motors.

Thanks to a project online done using Arduino that control two servo motor with a joystick explained on the website available at:

https://maker.pro/arduino/tutorial/how-to-control-servo-motors-with-an-arduino-and-joystick

I could confront that code with the code I already had, understood where was the part of code I needed and applied at my project. The only way I could know if what I wrote as code for my project would have work was trying... and it worked.

The final code is:

At the first try I saw the servo motors culdn't pull the wires enough to make the cube move in a proper way,

so I look around what I have got to solve this problem. So I taped the pen cap the the propeller of the servo motors and it was a success.

When I tested it few times I saw that the positions ( top tight on the left and bottom in front on the left) of the two servo motors wasn't good because the only movement I could get was only one where the cube ended in diagonal position and didn't return to the initial frontal one.

I will need to move the servo motors a side by the cube, one up and one at the bottom, and connect the frontal joints, on the top right and the bottom left sides because when I tried by hand it made another good lively movement.