Advice for noob needed please

Good afternoon everyone, I'm hoping there is someone who can give me a little bit of advice or steer me i the right direction,

Iv had an idea floating around my head for a while now and need a little guidance,

basically i need a board that can take 4, 3v or 5v signals from a trigger wheel and sensor
and count the teeth and another 3 or 5v signal that goes in then back out and can be delayed slightly,

would an arduino board be appropriate for this? if so what would you guys recommend?

regards
cal

Is the size of the board important for this project ?
Any of the Arduino boards should be able to do what you want. The Uno is practically the de facto standard for starting with as it allows easy experimentation, is well supported and understood and the circuit and code can be transferred to another device if/when you need to.

Do you have any experience with C++ which is the language used by the Arduino environment.

Is this trigger wheel and sensor?

Yes, Arduino Uno can do it.

and another 3 or 5v signal that goes in then back out and can be delayed slightly,

But I don't understand this.

Thank you guys for your help, i have no experience with C++ whats so ever but i am going to learn and try, and BillHo, yes thats the exactly what I'm talking about and what i meant by the second bit is i need to take a signal from a trigger sensor and it needs to just pass through the arduino but i need to be able to delay it by a certain degree when conditions from the other sensors are met, does that make sense? I'm sorry I'm not too good at explaining myself.