really odd case here

Projects Programming
1

so i have an odd situation and wanted to know if there is any real difference between the uno and the nano. the reason why i ask this is because i have started a project and not getting the results that i should following the porject guidance on the web pages i am using. for example, i have been following this project -http://www.sparkfun.com/tutorials/330

however when i run the first code and watch the serial monitor, i dont get 0 it is all sitting about 200 or so, not sure why,

and this project too -http://todbot.com/blog/2006/10/29/spooky-arduino-projects-4-and-musical-arduino/

this one i used a hacked midi interface from another (and perfect working ) project
but the led showing that midi signals are being sent flashes and i dont get any midi note or anything register in logic.

i am well confused, and wondered that the difference could be that i am using an arduino nano now and my last project was with an UNO r3.

is there going to be a difference just by using a different board.

can anyone shed some light here ( i am thinking it could also be a faulty nano)

cheers

marc

2

No real fundamental differences from a programming point of view as both use a 328P type chip.

Minor differences:

Uno has a smaller faster bootloader so sketches can be a tiny bit larger maximum size and upload at a higher baud rate.

The nano has two more analog input pins then the Uno board does.

Lefty

3

so i can definately rule that out does the nano sound faulty to you at all???

4

marcjwebb:
so i can definately rule that out does the nano sound faulty to you at all???

I would first look carefully at all your wiring as the Uno shield layout and the nano pin layouts are vastly different, it would easy to get something miswired when moving a project from a Uno to a Nano board.

Lefty

5

kl . so looked at the wiring, all is ok still get random readings other than 0 that should be coming up.