Arduino - micros()

As I said before in my blog I am new to arduino. Right now I am struggling with the micros() command. I use the micros() to measure period time on a puls train, but sometime I got "0" from the micros() - hmmmm

EAGLE - CadSoft

I am using the EAGLE CAD software when drawing schematic. I have made my own Library - nbody.lbr. If you need devices for some of my projects, send me a e-mail, and you will get the .lbr file. 

New DMM

Today I order a new multimeter instead of the old "Metrix" meter. I order a Extech EX420 DMM, more about this meter later.