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-   -   ESR meter upgrades (https://www.badcaps.net/forum/showthread.php?t=50720)

stj 12-01-2015 07:22 PM

ESR meter upgrades
 
2 Attachment(s)
so - rotary encoder time.

get your rotary encoder and bend and trim the center pin so it sits on the top of the board - like this:

stj 12-01-2015 07:23 PM

Re: ESR meter upgrades
 
1 Attachment(s)
next, take the original switch off, and scrape some laq off the top of the pcb for the center pin like this:
(only for this model of meter)

stj 12-01-2015 07:24 PM

Re: ESR meter upgrades
 
1 Attachment(s)
next, solder the encoder in,

stj 12-01-2015 07:26 PM

Re: ESR meter upgrades
 
2 Attachment(s)
next you need a pair of 1k resistors and a pair of 10k resistors and some thin wire.

just to be clear, the place the 10k resistors join the wire is NOT connected to the pcb!

stj 12-01-2015 07:28 PM

Re: ESR meter upgrades
 
3 Attachment(s)
next you need to link the 2 cpu pins to the resistors.
WARNING - this is pro-soldering!

stj 12-01-2015 07:29 PM

Re: ESR meter upgrades
 
1 Attachment(s)
if you do it clean, it should look like this:

stj 12-01-2015 07:31 PM

Re: ESR meter upgrades
 
1 Attachment(s)
back to the top of the pcb,
solder the center tab of the encoder to the ground-point you remembered to scrape-clean on the pcb.

stj 12-01-2015 07:32 PM

Re: ESR meter upgrades
 
2 Attachment(s)
2 foto's i had left. :)

stj 12-01-2015 07:33 PM

Re: ESR meter upgrades
 
and does it work?
NO - i have to compile new firmware first. :(

still, the hardware is done now.

goodpsusearch 12-02-2015 06:02 AM

Re: ESR meter upgrades
 
Thank you for the walk through!

stj 12-04-2015 05:14 AM

Re: ESR meter upgrades
 
1 Attachment(s)
AND - IT'S HERE!

latest firmware compiled for this model by me.
with rotary encoder, new fonts/gfx, serial-port etc.

elval 12-04-2015 05:59 AM

Re: ESR meter upgrades
 
Thank you

vinceroger69 12-04-2015 06:05 AM

Re: ESR meter upgrades
 
what extra functions does this firmware/encoder mod gain?

stj 12-04-2015 06:29 AM

Re: ESR meter upgrades
 
depends.
if your tester is pretty new and id's as 1.12k then nothing really, just a lot easier to use the menu function.

if your tester is old and running 1.11k or older then probably lots of new stuff.

stj 12-04-2015 11:36 PM

Re: ESR meter upgrades
 
i am going to be making some updates to that file.
just saying.

stj 12-05-2015 02:47 AM

Re: ESR meter upgrades
 
1 Attachment(s)
update:

btw, i'm willing to compile this for the T3 / T4 boards if asked.

SteveNielsen 12-05-2015 08:02 AM

Re: ESR meter upgrades
 
Thank you man. You're sure to be on Santa's nice list for this
:)

stj 12-05-2015 09:22 PM

Re: ESR meter upgrades
 
1 Attachment(s)
bugfix. :)

stj 12-05-2015 11:31 PM

Re: ESR meter upgrades
 
1 Attachment(s)
config fix.
previous builds wont read inductors properly.

:duh:

japlytic 12-06-2015 06:06 AM

Re: ESR meter upgrades
 
There is one thing ESR meters should have, which is Kelvin sensing (4-wire measurement capability), which keeps measurement errors to a minimum.


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