What should be the better choice to buy an Aruino board. My concept is from desktop output is given to android device through internet and its out is to Arduino board via USB cable and board gives out to run motors.

1. Arduino Due Vs Mega
2. Arduino Uno Vs Mega 2560
3. Difference Between Arduino Mega And Uno

This is why in this post, two Arduino products—the Mega2560 and Uno R3—will be compared to help you make an educated choice whenever the need arises. Hi, just wanted to know, is there any drawback in getting an Arduino Mega2560 vs an Uno R3? (Or, clones of them, respectively).

Thanks in Advance..!

closed as primarily opinion-based by Matt Gibson, UncleO, njuffa, Andrew BarberNov 19 '14 at 20:31

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.

1 Answer

The major differences are things like number of pins and memory sizes. Here is a good list:http://arduino.cc/en/Products.Compare

The Uno will run most programs you will need and are very compact. Go up further if you have more pins requirements.

Arduino Due Vs Mega

I can't add below since it says the topic is closed:

If your motors are small and you are thinking of running them all or a few doctor from the pins instead of from outside supply you need to be aware of the current capacitieshttp://playground.arduino.cc/Main/ArduinoPinCurrentLimitations

Sounds like the uno will be fine for you unless you need slightly more current.

The easiest way to add android support is over a Wi-Fi or a Bluetooth shield that you can quickly add to your uno.

Arduino Uno Vs Mega 2560

Difference Between Arduino Mega And Uno

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So, if you were working with the ATMega 1280, you can just plug it in and burn the bootloader to it.
That would be 'Arduino Mega'
If you were using the ATMega 2560... Uh oh...
You see the Arduino Mega 2560 board has an ATMega 8 or 16 as the UART. In this instructables I was using an FTDI converter.
I would have continued to make some board support for this DIY Mega, however.... it burnt out.
When soldering in the oscillator crystal, make sure it DOES NOT SHORT THE LEADS. Note that it has a metal casing, so it should either be masked with electrical tape or place in another area.
That ended up shorting XTAL 1 and 2, Vcc, and GND all together. The chip smoked and I wasted a lot of effort.
As long as you follow all of these instructions, however, you will be able to accomplish what I would have if I have not made that mistake!
In other words
I shorted something by accident. If all of you out there remember not to short anything, your mega will work. If you do what I did, by putting the crystal in the wrong place and shorting it, it will not work.