Let’s imagine the simple situation: people are sitting around the table and see a small squared shaped box with one pressing button at the center of it. It is easy to tell what happens next – even the button is without any specific function people will try to press leaded by the curiosity that ‘is the most superficial of all the affections; it changes its object perpetually and it has an appetite which is very sharp, but very easily satisfied’. The simple fact about the button and a pushing action impelled by the curiosity creates a personal link between an object and a person.

If the square shaped box similar to the previous one, but just with two different colour buttons (for example red and green) instead of one on the same table for the group of people they would respond to it similarly – try to press a buttons. The only difference in this case it is the meanings of colours and their psychology to society. In all the gadgets (computers, mobile phones, cars, traffic-lights etc.) green means capability, start and other affirmative meanings while red, contrary, associates with shortage, danger and urgency. So assumption that majority of people would choose to press the green button first rather than red could be made.

'The 20/80 rule asserts that approximately 80 percent of the
effects generated by any large system are caused by 20 percent of the variables in that system.'

'A few examples of the 80/20 rule include:
80 percent of a product's usage involves 20 percent of its features.
80 percent of a tow's traffic is on 20 percent of its roads.
80 percent of a company's revenue comes form 20 percent of its products.
80 percent of innovation comes from 20 percent of the people.
80 percent of progress comes from 20 percent of the effort.
80 percent of errors are caused by 20 percent of the components.'

William Lidwell, Kritina holden
Universal Principles of design

So, with this simple cube with few different colours buttons i want to track the number each colour is been pressed.

If the blue button would be pressed, the cube would light up with the blue LED light.

Same with the other colours.

The counters on the sides of the cube would show how many times each colour been used.

Firstly I tried simply switch on and off the LED with a button.

And then the more difficult part - connect the LCD display and make it just simply write a few words and to show how many seconds it is on.

First problem: the pin headers that I'm using for LCD screen doesn't make a right connection. So I tried to find a solution.

Second problem: I couldn't find better way to connect the wires (as the Internet and electronic shop assistant said) so I tried to solder wires to all 16 pins.
The problem is that I burned all of my fingers and lost all of my patience.

Finally it is working.

The really complicated part: I tried to make LCD screen to show the number of button hits.

But it doesn't seem to work. I figured out that my potentiometer is on the wrong side of the breadboard, it started to work, unfortunately not properly (flashing when it not supposed to).

Third problem: I tried everything I could think of (in my opinion the problem is that the potentiometer is connecting only to one side or the breadboard or my bad soldering) until the wires connecting LCD to breadboard started falling off. And I had no possibility to solder again.

At least I came up with some interesting outcomes by changing only position of the wires.

This is how my final peace supposed to look.