# Which Arduino(or clone) to pick?

#### mollekake

Jun 30, 2014
37
Hello all!
I got a project in my mind that i want to try my hands on, it involves accelerometer and communication between two boards/controllers.(is bluetooth best?)
So i started looking around and oh my, there are a TON of boards, shields and controllers out there.
I want something cheap and easy to use, with a decent amount of shields to pick from.

So here is the big question, which one would you reccomend? And why that one?

#### Arouse1973

Dec 18, 2013
5,177
What are Shields? What distance are you going to need and how much data. Can you tell us a bit more about your project.

#### shumifan50

Jan 16, 2014
579
Which one you pick depends on what you want exactly. You can go for the minimum pinouts that support your application, or futureproof by picking one with more I/O pins. Most support UART and I2C. Shields are just dependent on how they interface and whether the specific Arduino you pick supports that type of interface, e.g. UART or I2C (the main 2 types of interfaces used). And then of course what I/O your app wants to do.
Other than that they are nuch of a muchness.
Personally I would go for the biggest one that fits my budget and space requirements. It is not possible to make a recommendation unless we know exactly what you want to do, so the I/O requirements can be determined.

My choice of communications in order of preference:
UART = if wite connections are possible and very high speeds are not required.
I2C = if it fits
Bluetooth = Note that you get bluetooth shields that plug into I2C or UART.

@Arouse: shields are the name Arduino gives to their interface boards to various peripherals.

#### Arouse1973

Dec 18, 2013
5,177
Thanks shumifan50

#### mollekake

Jun 30, 2014
37
Well i want to create a game with RC cars. I want to attach a module that senses when the cars crash with eachother. When one car sense a crash(the accelerometer) it communicates with the other car to see if it sensed a crashed aswell. So it needs to be small mainly

#### (*steve*)

##### ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,505
I like the arduino pro mini's. They're small. They don't connect to "shields". You can get them delivered for around $US3.50 each (edit: make that$US2.50 delivered).

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#### mollekake

Jun 30, 2014
37
Ok that sounds like a cheap version. Unfortunate that it does not have any shields with easy connection.

#### (*steve*)

##### ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,505
Shields are really just a way to monetize connecting a few wires.

#### mollekake

Jun 30, 2014
37
Yeah i guess you're right about that