Hi all,
I would like ask more experienced guys. I'm little bit confuned, which one Arduino I should choose as best for my aplication.
Suggest for my project:
I would like control 4 relays for switching fuel maps on my motorbike, control it with display and buttons. And for control throttles on air-intake and lamba sonda tracing.
Thanks a lot
Your post was MOVED to its current location as it is more suitable.
I don't know what a "fuel map" is (a map of fuel stations?), but any Arduino board can do all of these tasks. Look at the Nano.
Avoid the Uno. It's a great board for the classroom, but the Nano beats it in just about every spec.
On the other hand, if this is your first Arduino project, then I strongly recommend that you buy an Uno and a "sensor" kit. Then start experimenting with the sensor kit and the example sketches in the IDE. Diving right into the deep end will only make your project take longer.
Somewhat confusing, Steve!
I agree with Steve's first statement: avoid Uno. And Mega. And Due. A classic Nano v3 would be my recommendation also.
If this is the FIRST Arduino experience, then the Uno is, as I said, a good classroom processor. And more expendable.
... and, if this is your first project, you should do a lot of bench experiments before trying to install something like this on a motorcycle. Then the choices will become clearer to you...
It's almost like, "I want to write a novel, what kind of pen should I use?".
Hi @oration,
on projects with little space, I like to use the Arduino Mini.
It has all the features of the Nano, but it doesn't have the USB interface,
which during normal use is unnecessary.
To upload codes I use the module with FT232RL, which I remove after I record the code.
RV mineirin
People here won't automatically know what that is. Of course, I could Google it. 
The concept is, we help for free. Don't force us to do unnecessary work to help you.
There are forum guidelines that you should read, in order to post a question in a way that it will get good results.
Hi guys,
thans for help.
Yes, I´m plannig a plenty of tests before use on my bike. SW and HW must be durable, but the function, that I expect, doesnt has an impect for function at all. Only reading analog values and switching some relays. I checked what marker offers, I am wondering about Arduino Nano, is it suitable too?
The Nano or Pro Mini would probably work for your project. I say "probably" because your requirement is still vague.
Also, there's a new one, "durable". Well, that obviously depends on how it's constructed and used... none of the Arduinos are automotive or industrial grade electronics.
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