Rotary encoder sensibility

[Iorobyy11]

Hi everyone
Question about rotary encoder : response sensibility is low , for example when i scroll the Patch Voices.
It seem there is a late Between rotation and display act , Maibe something to adjust in encoder software interface sensibility…
I rotate a lot before (3-4 rotation click) to switch to another Voice.
How can i increase or adust sensibility ?
Thanks

[craigyjp]

Do you have 10nf capacitors across the A&B terminals to ground? Also maybe a capacitor from switch to ground?

These are recommended for encoders and the Pi.

[dhstsw]

Thanks

[dhstsw]

yes, if you look on the github site the A and B are CLK and DT.

After more than a month i found the time to solder the 10nf capacitors (directly on the back of the encoder itself).
Now it works absolutely perfect.

Thanks!

[Iorobyy11]

You mean 2 capacitors 10nf - clk to ground and dt to ground?

[dhstsw]

Exactly.

[Iorobyy11]

👍 thanks

[fedekrum]

Hi. I am willing to buy capacitors, but I have no electronics experience (nor knowledge).
I have found 3 different capacitors from a seller:
3KV 10nf(103)
2KV 10nF (103)
1KV 10nF (103)

another seller sells this:
50V - 10NF

and another:
2J103J 10NF 630V

Not sure what to buy.
I would appreciate any advice.

[plamen-dzhorev]

Raspberry PI is powered by 5V only so you can use the smallest possible voltage - 50V/10nF. If you have pictures of the capacitors, just choose the most convenient one for you, all will do the job but these with higher voltage can be bigger in size.

[fedekrum]

thanks @plamen-dzhorev !!!

[b1tfl0w]

Hello, I have a question about this. Some time ago, I created a program for launching scripts on the Pi https://github.com/b1tfl0w/pictrl. It’s quite simple: it uses a KY-040 rotary encoder to select the script to run and an SSD1306 display to show the menu. I didn’t need to add capacitors, and it never misses a step while rotating.
So, I’m wondering why capacitors are required in minidexed but not in my project? Maybe the library is implemented differently?

[penfold42]

They're probably not required as of the changes a couple of weeks ago.
#1008