Products > Test Equipment
Rigol DS1054Z rotary encoder mod *works!*
tooki:
Also, for what it's worth, the original encoders in my THT board appear to be from a called LJV.
I suspect that the original encoders are their "RE11 Low Profile Rotary Encoder". (I must say that I enjoy how the non-detented ones are pine green, while the detented ones are lime green.)
smartislav:
TL;DR
For keyboard v01.02 (with 1:2 SMD encoders), these THT panel-mount encoders https://nl.mouser.com/ProductDetail/652-PEC11L4215FS0015
can easily be converted to SMD. I just did it and it works just fine.
The only thing is, it might be a little bit too fast. The controller skips steps sometimes.
Another option (with fewer steps) is https://nl.mouser.com/ProductDetail/Bourns/PEC11R-4215F-S0012 but it's only rated for 30000 cycles (against 100000 for the first one). Also, it's not low-profile. Not sure if it fits or not. It's temperature range is slightly different, too. So I'm not sure if it's just estimated within a different confidence interval or something.
klausES:
The encoder you are using now has 30 detents 15 pulses.
This corresponds to the last theses for locking encoders that could work with this board and the software.
He also has an overlap of 50% (unfortunately, my first attempt with an Alps didn't have that).
What I'm interested in.
Is your encoder (30 detent, 15 impulses) when slowly turning now exactly one menu item or two from one detent to the next?
My question is, because with the original encoder with 20 pulses everyone is used for jumps,
Your current one at 15, whether the software interprets 30 or the real 15 from it.
If a brisk turn leads more often to errors such as skipping a menu item (I noticed that often in my attempts)
a 24 (or 20) detent with 12 (or 10) pulses would probably be more suitable for this board.
smartislav:
--- Quote from: klausES on April 09, 2020, 09:53:26 pm ---Is your encoder (30 detent, 15 impulses) when slowly turning now exactly one menu item or two from one detent to the next?
--- End quote ---
Yep, exactly one.
--- Quote from: klausES on April 09, 2020, 09:53:26 pm ---My question is, because with the original encoder with 20 pulses everyone is used for jumps,
Your current one at 15, whether the software interprets 30 or the real 15 from it.
If a brisk turn leads more often to errors such as skipping a menu item (I noticed that often in my attempts)
a 24 (or 20) detent with 12 (or 10) pulses would probably be more suitable for this board.
--- End quote ---
It does jump. I'm not 100% satisfied with the replacement.
The problem is, after you turn it quickly, the firmware on the board might get confused. Some of the subsequent turns might be missed.
But if you only ever turn it slowly, it works just fine.
I should've put a scope on the signal traces to debug the issue, but alas. It might be caused by my rework of the PCB pads I tore off. Another possible cause is different signal filtering requirements.
klausES:
The knob, which is very small in diameter, favors a very fast pulse sequence when it is turned quickly between the fingers.
A larger knob would defuse that, but it is not a nice solution.
Therefore 24 detent with 12 impulses could probably cause fewer problems.
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