Arduino Comparision

              Just received my shipment from Sparkfun today,it had the Arduino pro mini along with an RFID reader(ID-20 ,more on that in my next post) and some RFID tags.....i decided to see the other alternatives to the pro mini , read on to find what i have come up with.

          I have compared only the Arduino boards with the smallest footprints and surface mount chips........and I have only worked with the Arduino pro mini out of all that I mentioned....this list is not comprehensive and there may be other similar Arduino / arduino compatible boards. Just search for them on the arduino website or some online store. The information is only based on the latest v of these boards(as of the date of this post).
Here is a comparison Arduino Pro Mini (Sparkfun) vs Arduino Nano (Gravitech) vs Arduino Pico(Modified Electronics)

The images are NOT TO SCALE

*Without an on-board voltage regulator you have to supply the Vin pin with regulated 5V/3.3V through an external regulator or a adapter ,one more advantage of having an on board regulator is that you can power other devices with the same board. Also powering such boards with Li-polymer batteries is convenient as two of them give 7.4V and this will get well regulated to 5V

Note: The on board regulators cannot source much current and you should not draw more than the specified voltage

** The connectors to the pins on the boards,actually even if you know a bot of soldering boards without pin headers are preferable as it gives you the flexibility to solder the ones of your choice...which is very important if you are trying to make everything compact and small

Hope that helps you choose your arduino.................................................