Search found 7 matches

by RoboKaren
Sun Sep 19, 2010 9:53 am
Forum: DSO
Topic: The latest version v2.5e of DSO nano has released! [Update!]
Replies: 13
Views: 7579

Re: The latest version v2.5e of DSO nano has released!

So.... what's new in 2.5? :-)
by RoboKaren
Sun Sep 05, 2010 9:17 am
Forum: DSO
Topic: DSO NANO - how we users can impact next hardware design !!!
Replies: 52
Views: 106558

Re: DSO NANO - how we users can impact next hardware design !!!

Looks like they've posted a new schematic (or at least the v2.3) on Google code. It uses LTC4054 and FDFMA2P853 for charge controlling.

http://code.google.com/p/dsonano/downloads/list
by RoboKaren
Wed Sep 01, 2010 9:27 am
Forum: DSO
Topic: new usage for the nano question?
Replies: 2
Views: 2498

Re: new usage for the nano question?

Sounds like a great idea! I wonder how fast it would have to react.... so say you had a 50 meter cable with a break in it somewhere.... say at the 25 meter mark, then that would be 50 meters round trip for the pulse to go out and come back.... Let's assume that the pulse was travelling at near the s...
by RoboKaren
Thu Aug 19, 2010 3:23 am
Forum: DSO
Topic: New DSO Nano v2 looks great!
Replies: 1
Views: 2558

New DSO Nano v2 looks great!

Looks like there's a new hardware revision of the DSO! And it's beta-testing for $69. I just picked one up, can't wait 'til it gets here. http://www.seeedstudio.com/depot/bmz_cache/1/158caf7237ed3f9e788d90aacf6eb59d.image.150x112.jpg http://www.seeedstudio.com/blog/wp-content/uploads/2010/08/Structu...
by RoboKaren
Thu Aug 19, 2010 3:19 am
Forum: DSO
Topic: DSO NANO - how we users can impact next hardware design !!!
Replies: 52
Views: 106558

Looks like the new nano v2 is posted!

Hey guys - It looks like Seeed has just posted a new version of the nano. Can someone do a full teardown and let us know how the circuitry has changed? http://www.seeedstudio.com/depot/bmz_cache/1/158caf7237ed3f9e788d90aacf6eb59d.image.150x112.jpg http://www.seeedstudio.com/blog/wp-content/uploads/2...
by RoboKaren
Sat Jun 19, 2010 11:15 am
Forum: To Be Classified
Topic: Arduino Controlled PC Water Cooling System info center.
Replies: 8
Views: 9614

Re: Arduino Controlled PC Water Cooling System info center.

The problem is that it takes an entire second to count RPM, which will delay the updates to your LCD. This may be acceptable or not. If you have a fast RPM and don't care about precision, you can reduce the sampling interval to 500 msecs or even 250 msecs. One other way to count RPM is to count the ...
by RoboKaren
Sat Jun 19, 2010 11:08 am
Forum: To Be Classified
Topic: Energy Monitor Shield
Replies: 3
Views: 5576

Re: Energy Monitor Shield

I would love to measure the energy requirements of my various EVs. So I would like Seed to carry an AC/DC hall effect current sensor with at least 100 volts / 200 amps, preferably 300 volts / 200 amps capacity.

:-O