Most helpful positive review
21 of 21 people found the following review helpful
Great Board, But...
on November 14, 2012
I am new to Arduino, but I dove right in! I was looking for a small USB-enabled board that would work well as an LED controller for a quadcopter that I am building. I was so eager to get started that after finishing my purchase for this board on Amazon, I went directly to RadioShack to buy one so that I did not have to wait. RadioShack only had the Arduino Micro, and I was then curious to see which was smaller. The Nano is smaller, but only by about 5mm in length.
My title ends with "but" because when I received the board, some pins were bent and I noticed RIGHT AWAY that it was not a Gravitech board. The board I received looks a bit different than the one pictured, but I assume it functions exactly the same. The Micro has 4 extra pins, labeled "MOSI", "SS", "MI" and "SCK" -- not sure what these are, but I haven't used them yet.
Here are a few comparisons of the Nano vs the Micro:
Manufactured by Xinda (mine was, anyhow)
VERY SMALL (and hard to press) reset button
5mm shorter than Micro
Pin labeling and LED labeling are kinda crammed and hard to decipher
Power LED on top (green)
Weighs in at just over 6 grams (6g)
Designed with Adafruit
Decent sized reset button
5mm longer than Nano
Pins are clearly labeled and easy to read
Power LED on bottom (blue)
Weighs in at just under 7 grams (7g)
Both boards are breadboard friendly, have 4 integrated LEDs (L, TX, RX, PWR). Overall, I like the Micro better than the Nano, but mainly because I don't keep a mini USB cable plugged into my PC at all times (and it's a wee bit prettier...) Both boards seem to be directly interchangeable, with the exception of the 4 additional pins on the ISP header-side of the Micro board.
Just a side note: I might switch to an Arduino Pro Mini once I get the custom x550 quadcopter finished, since it is about 4 grams (4g) lighter than the Nano and Micro.