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:

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)

Re: ESR meter upgrades
 

next, solder the encoder in,

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!

Re: ESR meter upgrades
 

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

Re: ESR meter upgrades
 

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

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.

Re: ESR meter upgrades
 

2 foto's i had left. :)

Re: ESR meter upgrades
 

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

still, the hardware is done now.

Re: ESR meter upgrades
 

Thank you for the walk through!

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.

Re: ESR meter upgrades
 

Thank you

Re: ESR meter upgrades
 

what extra functions does this firmware/encoder mod gain?

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.

Re: ESR meter upgrades
 

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

Re: ESR meter upgrades
 

update:

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

Re: ESR meter upgrades
 

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

Re: ESR meter upgrades
 

bugfix. :)

Re: ESR meter upgrades
 

config fix.
previous builds wont read inductors properly.

:duh:

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.