ESR meter upgrades

**stj** · 12-01-2015, 07:22 PM

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

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

next, solder the encoder in,

**stj** · 12-01-2015, 07:26 PM

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

next you need to link the 2 cpu pins to the resistors.
WARNING - this is pro-soldering!

**stj** · 12-01-2015, 07:29 PM

if you do it clean, it should look like this:

**stj** · 12-01-2015, 07:31 PM

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

2 foto's i had left.

**stj** · 12-01-2015, 07:33 PM

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

Thank you for the walk through!

**stj** · 12-04-2015, 05:14 AM

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

Thank you

**vinceroger69** · 12-04-2015, 06:05 AM

what extra functions does this firmware/encoder mod gain?

**stj** · 12-04-2015, 06:29 AM

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

i am going to be making some updates to that file.
just saying.

**stj** · 12-05-2015, 02:47 AM

update:

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

**SteveNielsen** · 12-05-2015, 08:02 AM

Thank you man. You're sure to be on Santa's nice list for this

**stj** · 12-05-2015, 09:22 PM

bugfix.

**stj** · 12-05-2015, 11:31 PM

config fix.
previous builds wont read inductors properly.

**japlytic** · 12-06-2015, 06:06 AM

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

12-01-2015, 07:33 PM	#9
stj Great Sage 齊天大聖 Join Date: Dec 2009 City & State: Europe My Country: some shithole run by Israeli agents I'm a: Professional Tech Posts: 29,104	Re: ESR meter upgrades and does it work? NO - i have to compile new firmware first. still, the hardware is done now.

12-02-2015, 06:02 AM	#10
goodpsusearch Badcaps Veteran Join Date: Oct 2009 City & State: Thessaloniki, Greece My Country: Greece Line Voltage: 230VAC 50Hz I'm a: Knowledge Seeker Posts: 2,140	Re: ESR meter upgrades Thank you for the walk through!

12-04-2015, 05:59 AM	#12
elval New Member Join Date: Nov 2015 City & State: Slatina My Country: Hrvatska I'm a: Knowledge Seeker Posts: 2	Re: ESR meter upgrades Thank you

12-04-2015, 06:05 AM	#13
vinceroger69 Badcaps Veteran Join Date: Mar 2012 City & State: Nuneaton Warwickshire My Country: uk I'm a: Hobbyist Tech Posts: 6,493	Re: ESR meter upgrades what extra functions does this firmware/encoder mod gain?

12-04-2015, 06:29 AM	#14
stj Great Sage 齊天大聖 Join Date: Dec 2009 City & State: Europe My Country: some shithole run by Israeli agents I'm a: Professional Tech Posts: 29,104	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.

12-04-2015, 11:36 PM	#15
stj Great Sage 齊天大聖 Join Date: Dec 2009 City & State: Europe My Country: some shithole run by Israeli agents I'm a: Professional Tech Posts: 29,104	Re: ESR meter upgrades i am going to be making some updates to that file. just saying.

12-05-2015, 08:02 AM	#17
SteveNielsen Retired Tech Join Date: Jun 2012 City & State: Newport, OR My Country: USA Line Voltage: 120VAC 60Hz I'm a: Hobbyist Tech Posts: 2,305	Re: ESR meter upgrades Thank you man. You're sure to be on Santa's nice list for this

12-06-2015, 06:06 AM	#20
japlytic Badcaps Veteran Join Date: Oct 2005 City & State: Rockhampton, Queensland, Australia My Country: Australia Line Voltage: 240VAC 50Hz I'm a: Hobbyist Posts: 2,011	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. __________________ My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics.