Badcaps.net Forum
Go Back   Badcaps Forums > Troubleshooting Hardware & Devices and Electronics Theory > Equipment Usage, Soldering, Techniques, and Reviews
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools
Old 12-01-2015, 07:22 PM   #1
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,082
Default ESR meter upgrades

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:
Attached Images
File Type: jpg encoder-pins1.jpg (201.8 KB, 192 views)
File Type: jpg encoder-pins2.jpg (81.6 KB, 173 views)
stj is online now   Reply With Quote
Old 12-01-2015, 07:23 PM   #2
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,082
Default Re: ESR meter upgrades

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)
Attached Images
File Type: jpg pcb-top+gnd-pad.jpg (1.09 MB, 265 views)

Last edited by stj; 12-01-2015 at 07:34 PM..
stj is online now   Reply With Quote
Old 12-01-2015, 07:24 PM   #3
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,082
Default Re: ESR meter upgrades

next, solder the encoder in,
Attached Images
File Type: jpg encoder-fitted(pads).jpg (452.2 KB, 147 views)
stj is online now   Reply With Quote
Old 12-01-2015, 07:26 PM   #4
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,082
Default Re: ESR meter upgrades

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!
Attached Images
File Type: jpg 5v-wire1.jpg (1.01 MB, 153 views)
File Type: jpg 5v-wire2.jpg (1.15 MB, 130 views)

Last edited by stj; 12-01-2015 at 07:38 PM..
stj is online now   Reply With Quote
Old 12-01-2015, 07:28 PM   #5
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,082
Default Re: ESR meter upgrades

next you need to link the 2 cpu pins to the resistors.
WARNING - this is pro-soldering!
Attached Images
File Type: jpg atmel-pads.jpg (1.04 MB, 201 views)
File Type: jpg atmel-wires.jpg (429.7 KB, 171 views)
File Type: jpg encoder-wires.jpg (1,014.1 KB, 172 views)
stj is online now   Reply With Quote
Old 12-01-2015, 07:29 PM   #6
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,082
Default Re: ESR meter upgrades

if you do it clean, it should look like this:
Attached Images
File Type: jpg pcb-bottom+wires.jpg (505.2 KB, 240 views)
stj is online now   Reply With Quote
Old 12-01-2015, 07:31 PM   #7
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,082
Default Re: ESR meter upgrades

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.
Attached Images
File Type: jpg encoder-fitted2.jpg (455.1 KB, 140 views)
stj is online now   Reply With Quote
Old 12-01-2015, 07:32 PM   #8
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,082
Default Re: ESR meter upgrades

2 foto's i had left.
Attached Images
File Type: jpg cable-hooks.jpg (386.5 KB, 142 views)
File Type: jpg encoder-fitted1.jpg (192.1 KB, 131 views)
stj is online now   Reply With Quote
Old 12-01-2015, 07:33 PM   #9
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,082
Default Re: ESR meter upgrades

and does it work?
NO - i have to compile new firmware first.

still, the hardware is done now.
stj is online now   Reply With Quote
Old 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: 1,945
Default Re: ESR meter upgrades

Thank you for the walk through!
goodpsusearch is offline   Reply With Quote
Old 12-04-2015, 05:14 AM   #11
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,082
Default Re: ESR meter upgrades

AND - IT'S HERE!

latest firmware compiled for this model by me.
with rotary encoder, new fonts/gfx, serial-port etc.
Attached Files
File Type: zip GM328A ESR Tester.zip (33.9 KB, 183 views)
stj is online now   Reply With Quote
Old 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
Default Re: ESR meter upgrades

Thank you
elval is offline   Reply With Quote
Old 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: 5,770
Default Re: ESR meter upgrades

what extra functions does this firmware/encoder mod gain?
vinceroger69 is offline   Reply With Quote
Old 12-04-2015, 06:29 AM   #14
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,082
Default 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 is online now   Reply With Quote
Old 12-04-2015, 11:36 PM   #15
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,082
Default Re: ESR meter upgrades

i am going to be making some updates to that file.
just saying.
stj is online now   Reply With Quote
Old 12-05-2015, 02:47 AM   #16
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,082
Default Re: ESR meter upgrades

update:

btw, i'm willing to compile this for the T3 / T4 boards if asked.
Attached Files
File Type: zip GM328A ESR tester v2 (SVN617).zip (2.62 MB, 110 views)
stj is online now   Reply With Quote
Old 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: 2,306
Default Re: ESR meter upgrades

Thank you man. You're sure to be on Santa's nice list for this
SteveNielsen is offline   Reply With Quote
Old 12-05-2015, 09:22 PM   #18
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,082
Default Re: ESR meter upgrades

bugfix.
Attached Files
File Type: zip GM328A ESR tester v2 (SVN619).zip (2.62 MB, 63 views)
stj is online now   Reply With Quote
Old 12-05-2015, 11:31 PM   #19
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,082
Default Re: ESR meter upgrades

config fix.
previous builds wont read inductors properly.

Attached Files
File Type: zip GM328A ESR tester v3 (SVN619).zip (2.62 MB, 108 views)
stj is online now   Reply With Quote
Old 12-06-2015, 06:06 AM   #20
japlytic
Badcaps Veteran
 
japlytic's Avatar
 
Join Date: Oct 2005
City & State: Rockhampton, Queensland, Australia
My Country: Australia
Line Voltage: 240VAC 50Hz
I'm a: Hobbyist
Posts: 1,950
Default 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.
japlytic is offline   Reply With Quote
Reply

Thread Tools

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

Forum Jump



Badcaps.net Technical Forums 2003 - 2019
Powered by vBulletin ®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 08:05 PM.
Did you find this forum helpful?