« previous next »
Pages: [1]   Go Down

Author Topic: silly money  (Read 5217 times)

0 Members and 1 Guest are viewing this topic.

Offline siliconmixTopic starter

  • Frequent Contributor
  • **
  • Posts: 466
  • Country: wales
silly money
« on: January 21, 2012, 07:26:00 pm »
Logged
 

Offline ElectroElvis

  • Regular Contributor
  • *
  • Posts: 61
  • Country: at
  • http://electroelvis.com/
    • ElectroElvisBlog
Re: silly money
« Reply #1 on: January 21, 2012, 07:28:06 pm »
It says that listing has been removed:D
Logged
 

Offline 8086

  • Super Contributor
  • ***
  • Posts: 1085
  • Country: gb
    • Circuitology - Electronics Assembly
Re: silly money
« Reply #2 on: January 21, 2012, 07:35:21 pm »
Logged
 

Offline siliconmixTopic starter

  • Frequent Contributor
  • **
  • Posts: 466
  • Country: wales
Re: silly money
« Reply #3 on: January 21, 2012, 07:38:36 pm »
Logged
 

Offline siliconmixTopic starter

  • Frequent Contributor
  • **
  • Posts: 466
  • Country: wales
Re: silly money
« Reply #4 on: January 21, 2012, 07:40:34 pm »
« Last Edit: January 21, 2012, 07:49:52 pm by siliconmix »
Logged
 

Offline 8086

  • Super Contributor
  • ***
  • Posts: 1085
  • Country: gb
    • Circuitology - Electronics Assembly
Re: silly money
« Reply #5 on: January 21, 2012, 08:45:17 pm »
Quote from: siliconmix on January 21, 2012, 07:40:34 pm
Quote from: siliconmix on January 21, 2012, 07:38:36 pm



sorry
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

the price is too cheap.anyone tried these ?

Too 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.
Logged
 

Offline Chet T16

  • Frequent Contributor
  • **
  • Posts: 537
  • Country: ie
    • Retro-Renault
Re: silly money
« Reply #6 on: January 21, 2012, 09:07:00 pm »
I bought one from that seller for just over half that price, it didn't work
Logged
Chet
Paid Electron Wrestler
 

Offline siliconmixTopic starter

  • Frequent Contributor
  • **
  • Posts: 466
  • Country: wales
Re: silly money
« Reply #7 on: January 21, 2012, 09:58:42 pm »
thats what i was thinking too cheap must be garbage
Logged
 

Offline 8086

  • Super Contributor
  • ***
  • Posts: 1085
  • Country: gb
    • Circuitology - Electronics Assembly
Re: silly money
« Reply #8 on: January 21, 2012, 10:04:09 pm »
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.
Logged
 

Online westfw

  • Super Contributor
  • ***
  • Posts: 4263
  • Country: us
Re: silly money
« Reply #9 on: January 22, 2012, 01:03:42 am »
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...
Logged
 

Offline electrode

  • Regular Contributor
  • *
  • Posts: 141
  • Country: au
Re: silly money
« Reply #10 on: January 31, 2012, 10:23:39 am »
Looks like the Adafruit one, but with an extra digit.
Logged
 

Offline Balaur

  • Supporter
  • ****
  • Posts: 525
  • Country: fr
Re: silly money
« Reply #11 on: January 31, 2012, 10:45:01 am »
Quote from: electrode on January 31, 2012, 10:23:39 am
Looks like the Adafruit one, but with an extra digit.

I've bought several of those. The assembly's quality is highly variable. Works for my projects, but I would not want to use them in a product.
They are decent after resoldering and calibration.

Cheers,
Dan

Logged
 
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee