silly money - Page 1
Forum section: electronics / general

author: siliconmix
author_rank: Frequent Contributor
timestamp: January 21, 2012, 07:26:00 pm
content: eBay auction: # [url=http://www.ebay.co.uk/itm/170719972268?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_5817wt_874]http://www.ebay.co.uk/itm/170719972268?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_5817wt_874

author: ElectroElvis
author_rank: Regular Contributor
timestamp: January 21, 2012, 07:28:06 pm
content: It says that listing has been removed:D

author: 8086
author_rank: Super Contributor
timestamp: January 21, 2012, 07:35:21 pm
content: http://www.ebay.co.uk/itm/170719972268?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_5817wt_874What's wrong with it? :/

author: siliconmix
author_rank: Frequent Contributor
timestamp: January 21, 2012, 07:38:36 pm
content: sorryeBay auction: #http://www.ebay.co.uk/itm/0-36-Digital-Panel-Meter-DC-Voltage-Volt-meter-0-33V-Blue-LED-DC-0V-33V-/170719972268?pt=LH_DefaultDomain_0&hash=item27bfb40bac#ht_5817wt_874

author: siliconmix
author_rank: Frequent Contributor
timestamp: January 21, 2012, 07:40:34 pm
content: Quote from: siliconmix on January 21, 2012, 07:38:36 pmthe price is too cheap.anyone tried these ?

author: 8086
author_rank: Super Contributor
timestamp: January 21, 2012, 08:45:17 pm
content: Quote from: siliconmix on January 21, 2012, 07:40:34 pmToo cheap? For a moment I thought you were suggesting it was too expensive!I don't see that it's too cheap. The parts certainly don't add up to the price on the listing...and even then it leaves room for profit.

author: Chet T16
author_rank: Frequent Contributor
timestamp: January 21, 2012, 09:07:00 pm
content: I bought one from that seller for just over half that price, it didn't work

author: siliconmix
author_rank: Frequent Contributor
timestamp: January 21, 2012, 09:58:42 pm
content: thats what i was thinking too cheap must be garbage

author: 8086
author_rank: Super Contributor
timestamp: January 21, 2012, 10:04:09 pm
content: I'm sure it works to some degree, or else they couldn't really sell it. It looke like a pretty simple circuit, low parts count, no reason for it not to work, or be too cheap.

author: westfw
author_rank: Super Contributor
timestamp: January 22, 2012, 01:03:42 am
content: Generic microcontoller with A-D converter, set of as a voltmeter. No particular reason for it to be expensive...Though I doubt that it really achieves 0.02% accuracy, since I've never seen a micro with that accurate of an internal reference, and I don't see a big fancy external reference. It's more likely that that means it has a 12bit A-D converter, and 1/4096 is about 0.02%, if you round...

author: electrode
author_rank: Regular Contributor
timestamp: January 31, 2012, 10:23:39 am
content: Looks like theAdafruit one, but with an extra digit.

author: Balaur
author_rank: Unknown
timestamp: January 31, 2012, 10:45:01 am
content: Quote from: electrode on January 31, 2012, 10:23:39 amI've bought several of those. The assembly's quality ishighlyvariable. Works for my projects, but I would not want to use them in a product.They are decent after resoldering and calibration.Cheers,Dan