another ebay gadget - Page 4 - diyAudio
Go Back   Home > Forums > Design & Build > Equipment & Tools
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Equipment & Tools From test equipment to hand tools

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 29th March 2013, 01:30 PM   #31
diyAudio Member
Join Date: Mar 2013
For better or worse, I plumped for the ESR Tester with 4mm Sockets (option B in my above list).

My rationale was:
  • it advertises itself as in-circuit testing, which is likely to be my primary usage, so hopefully it will be good at this.
  • The backlight could be handy
  • Sturdy looking construction
  • 4mm Test Sockets for flexible usage
  • It does the tests I'm buying it for (mainly ESR). The tests requiring a 3rd pin, are likely to be fringe cases for me, so better to get a unit that meets my needs better, rather than one that does extra things I'm less likely to use.
I had already ordered this last week before any replies, so hopefully I won't be disappointed with my choice. I guess if the backlight appear to drain battery excessively, I could always put a switch into that part of the circuit, to make the backlight optional.

At the end of the day, I decided it was cheap enough that if I wanted the other one, (or a fancier more expensive unit) I could buy one of those too!!

Been a week since ordering now, so will report back when it arrives.

Thanks for the thoughts...

  Reply With Quote
Old 30th March 2013, 02:12 PM   #32
diyAudio Member
Join Date: Mar 2013
I just did some digging on these, and my googling came across this thread. Some other things to add:

The two-terminal ESR tester boards are marked 'XJW Putian 2012-6' and have a STC12LE5A60S2 microcontroller (8051-clone). I found a Chinese site with a schematic, firmware and a Word document explaining the algorithm (in Chinese):
我设计的ESR表(可同时显示中小容量电容) - 〓仪表工具专区〓 - 矿石收音机论坛 - Powered by Discuz!

In that ESR.rar there seem to be four firmware versions.
aDC.c and two with Chinese filenames have versions:
lcd_puts("LCR 2.0");
lcd_puts("XJW Putian,2011");

meanwhile a.c (10K smaller than the others) has:

lcd_cur0(); lcd_puts("ESR 1.0");
lcd_goto2(0); lcd_puts("XJW Putian,2012");

diffing the firmware shows they do different calculations, but I'm not sure exactly what.
  Reply With Quote
Old 1st April 2013, 09:23 AM   #33
diyAudio Member
Join Date: Mar 2013
Thanks for the info. I will attempt to brush up my Chinese deciphering (or in other words just use Google Translate!).

I guess in buying this unit over the other one, I was resigning myself to probably having a fixed firmware (to all intents and purposes). As long as it works reasonably well at its stated job, I will be happy. If some improvements (in the form of updated firmwares) arrive in due course, that would be a real unexpected bonus!

I'll report back when the unit arrives and is tested.

  Reply With Quote
Old 20th April 2013, 10:31 AM   #34
diyAudio Member
Join Date: Mar 2013
It took a long time to arrive, but it is finally here. Just need to work out how it works and test it.

  Reply With Quote
Old 15th May 2013, 06:19 PM   #35
neskor is offline neskor  Serbia
diyAudio Member
Join Date: May 2008
Just received my board.
What kind of hardware( ISP to USB?) I need to upload new software to board?
Is there any guide for that?
  Reply With Quote
Old 22nd May 2013, 03:25 PM   #36
diyAudio Member
Join Date: May 2013
Default China Transistor-Cap-Ind checker

I purchased the tester above and received it, but there was no information on it or operations instructions. Are there any existant? I see the German website but have not been able to find English copies therein. Your attentioni is appreciated. Ray, W4BYG
  Reply With Quote
Old 22nd May 2013, 03:37 PM   #37
The Dastardly Dad of Three
diyAudio Member
Join Date: Sep 2009
See post 28
  Reply With Quote
Old 22nd May 2013, 04:01 PM   #38
diyAudio Member
Join Date: May 2013
I did miss it. Thank you. I don't yet know my away around the forum.
  Reply With Quote
Old 22nd May 2013, 04:20 PM   #39
diyAudio Member
Join Date: May 2013
We are the exact ebay seller of this item,
welcome to view our ebay shop about this tester:
Transistor Tester Capacitor ESR Inductance Resistor Meter NPN PNP MOSFET 9V | eBay

Many buyer want to get the newest firmware,
you can download in below link(link valid period:15 days): tester upgrade.rar

we welcome wholesale,or you can buy with your friends together.
we have discount if you want to buy 6 pieces or more.
welcome to contact us via ebay message or our
  Reply With Quote
Old 23rd May 2013, 03:01 PM   #40
diyAudio Member
Join Date: May 2013
some buyer maybe find some newest firmware such as rev.168, but we think the version we offered is the best version for our tester.
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
What is this gadget? It's made by Sennheiser SharpyWarpy Everything Else 12 19th August 2012 12:47 PM
10 kilo heatsink turned into a kitchen gadget DualTriode The Lounge 8 1st June 2012 03:31 PM
A LED meter, Volt meter, power meter or light indicator... a nice gadget destroyer X Solid State 5 25th February 2011 06:30 PM 5% Off Entire Order - eBay Prices without the eBay Hassle 3KingsAudio Vendor's Bazaar 4 24th October 2010 02:48 PM
Standalone Speaker measuring gadget venki Digital Source 2 1st January 2006 05:22 PM

New To Site? Need Help?

All times are GMT. The time now is 08:37 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2