Thank you for your fast answer !
To be clear, I have already an Arduino Uno, a display, 2 sensors. I don't need any printed board. As I may use it only once, I will do a temporary cabling on my breadboard.
Actually, I thought my 17 years old son could manage the program but he does not have the skill and the time to do it...
Will your package be what I need and is it the version with the RPM indication ?
Thanks.