On Friday 28 April 2017 10:38:11 Jim Craig wrote: > Thought you all might be interested in this cool little tool. I might > have to add one to the toolbox. > > https://www.sparkfun.com/products/13929 > > Let me know your thoughts. > > Jim > Its rather cute, Jim, but for me I see 2 problems, both of which keep the card in the rfi case. Either or both might be showstoppers for you too.
BW limited to 30MHz. I have noises that extend to well above 100MHz to deal with. The usb connection for power and ground probably is a ground loop, so it will lie to you in strange ways. But if it has supply and ground isolation, its quite a decent toy for troubleshooting servo systems. The lack of bandwidth would make it less than usefull for studying stepper systems. Trade the usb interface for a POE ethernet connection and it would be much more usefull because that would probably open the ground loop paths quite decently. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
