ESR meter upgrades

[stj]

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]

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)

[stj]

Re: ESR meter upgrades

next, solder the encoder in,

[stj]

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!

[stj]

Re: ESR meter upgrades

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

[stj]

Re: ESR meter upgrades

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

[stj]

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.

[stj]

Re: ESR meter upgrades

2 foto's i had left.

[stj]

Re: ESR meter upgrades

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

still, the hardware is done now.

[goodpsusearch]

Re: ESR meter upgrades

Thank you for the walk through!

[stj]

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.

[elval]

Re: ESR meter upgrades

Thank you

[vinceroger69]

Re: ESR meter upgrades

what extra functions does this firmware/encoder mod gain?

[stj]

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]

Re: ESR meter upgrades

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

[stj]

Re: ESR meter upgrades

update:

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

[SteveNielsen]

Re: ESR meter upgrades

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

[stj]

Re: ESR meter upgrades

bugfix.

[stj]

Re: ESR meter upgrades

config fix.
previous builds wont read inductors properly.

[japlytic]

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.