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Old 05-06-2018, 06:25 AM   #941
Per Hansson
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Default Re: ESR meter upgrades

I have uploaded the firmware from one on eevblog.
Yes it has a menu where you can select the basic modes of operation, including only ESR.
If anything's missing just compile your own
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Last edited by Per Hansson; 05-06-2018 at 06:27 AM..
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Old 08-13-2018, 02:57 AM   #942
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Default Re: ESR meter upgrades

@STJ,
Did you investigate the AY-AT firmware further? (See message 928)
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Old 08-13-2018, 04:22 AM   #943
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Default Re: ESR meter upgrades

no.
and that machine is sketchy as fuck - i think a harddrive is failing.
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Old 08-30-2018, 07:38 AM   #944
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Default Re: ESR meter upgrades

Hi i was going to arder AY-AT tester with case but seen a post where it says this one maybe a better choice and is newer https://www.aliexpress.com/item/M644...ceBeautifyAB=0
can this tester be upgraded with later firmware etc if needed and has anyone found a case too fit them thanks
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Old 08-30-2018, 09:49 AM   #945
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Default Re: ESR meter upgrades

ask here:
http://www.eevblog.com/forum/testgear/$20-lcr-esr-transistor-checker-project/5025/

it looks o.k. but a colour display would have been better.
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Old 08-30-2018, 12:10 PM   #946
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Default Re: ESR meter upgrades

Quote:
Originally Posted by stj View Post
ask here:
http://www.eevblog.com/forum/testgear/$20-lcr-esr-transistor-checker-project/5025/

it looks o.k. but a colour display would have been better.
Yes true no colour screen on these, so a ay-at it is then as aliexpress has a sale on and these can come with a case etc, too save me reading loads of pages in the eevblog thread lol, do you know what if any parts are recommend to swop out? before i update the firmware, i will also keep too a 9v battery as fits in case nice.

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Old 08-30-2018, 02:24 PM   #947
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Default Re: ESR meter upgrades

only the voltage reference really, like last time - i think you have spares of the lm4040

beware of the case, if it's the acrylic ones they crack.
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Old 08-30-2018, 02:26 PM   #948
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Default Re: ESR meter upgrades

btw, i ordered one of these in the sale.
https://www.aliexpress.com/item/New-...814430302.html

i'm thinking with a mask on the end to reduce the aperature, i can check how hot chips are without using the "finger test"
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Old 08-30-2018, 02:33 PM   #949
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Default Re: ESR meter upgrades

Quote:
Originally Posted by stj View Post
btw, i ordered one of these in the sale.
https://www.aliexpress.com/item/New-...814430302.html

i'm thinking with a mask on the end to reduce the aperature, i can check how hot chips are without using the "finger test"
yes got spares of the lm4040 so thats ok what crystal does the ay-at come with is it worth upgrading? and yes that looks like a good ir thermometer i will have a good look through there site whilst the sales on, i was going too make a post asking if anyone had spotted anygood bargains etc we all like too build our test equipment/parts stock up.
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Old 08-30-2018, 06:55 PM   #950
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Default Re: ESR meter upgrades

upgrade to a 16MHz crystal too.
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Old 10-06-2018, 09:29 AM   #951
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Default Re: ESR meter upgrades

GM328R firmware attached containing latest SVN version 798 of Karl-Heinz firmware.
This time 16Mhz and 20Mhz builds are included, I have tested both.
Attached Files
File Type: zip GM328R ESR tester (SVN798).zip (90.3 KB, 28 views)
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Old 12-12-2018, 02:46 AM   #952
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Default Re: ESR meter upgrades

@STJ

Is your old machine still sketchy ?
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Old 12-12-2018, 07:35 AM   #953
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Default Re: ESR meter upgrades

worse,
drive is dead
i know why - the motor driver ic is shorted (ST smooth series) - i'm looking for a donor drive to get another chip.
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