# Encoders in matrix designs

**URL:** <https://forum.midibox.org/t/encoders-in-matrix-designs/19642>\
**Category:** Parts Questions\
**Tags:** encoder, matrix\
**Created:** [July 12, 2016, 8:04pm UTC](https://forum.midibox.org/t/encoders-in-matrix-designs/19642 "2016-07-12T20:04:06Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Psykhaze](https://forum.midibox.org/user_avatar/forum.midibox.org/psykhaze/32/104_2.png) [@Psykhaze](https://forum.midibox.org/u/Psykhaze)\
**Post date:** [July 12, 2016, 8:04pm UTC](https://forum.midibox.org/t/encoders-in-matrix-designs/19642/1 "2016-07-12T20:04:06Z")

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Need some technical advice about a question:  
May encoders be managed in a switch matrix design?  
see&nbsp;[http://wiki.midibox.org/doku.php?id=switch#connection](http://wiki.midibox.org/doku.php?id=switch#connection)  
it may allow to manage large encoders numbers by having less DIN/DOUTs inputs outputs  
Bests,  
JK

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**Author:** ![latigid\_on](https://forum.midibox.org/user_avatar/forum.midibox.org/latigid_on/32/107_2.png) [@latigid\_on](https://forum.midibox.org/u/latigid_on)\
**Post date:** [July 12, 2016, 9:31pm UTC](https://forum.midibox.org/t/encoders-in-matrix-designs/19642/2 "2016-07-12T21:31:14Z")

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No, you can’t handle encoders this way.

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**Author:** ![Hawkeye](https://forum.midibox.org/user_avatar/forum.midibox.org/hawkeye/32/223_2.png) [@Hawkeye](https://forum.midibox.org/u/Hawkeye)\
**Post date:** [July 14, 2016, 7:16pm UTC](https://forum.midibox.org/t/encoders-in-matrix-designs/19642/3 "2016-07-14T19:16:35Z")

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> Quote
> 
> No, you can’t handle encoders this way.

Correct, imho because otherwise some encoder-turning events might get lost. A matrix always has a limited scan time per input line. Normal tactile switches are pressed at least a hundred milliseconds or so, these events will always be captured. But fast-turned encoders might pulse the input lines much faster and for shorter durations.

Best regards,

Peter

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**Author:** ![Psykhaze](https://forum.midibox.org/user_avatar/forum.midibox.org/psykhaze/32/104_2.png) [@Psykhaze](https://forum.midibox.org/u/Psykhaze)\
**Post date:** [July 14, 2016, 7:33pm UTC](https://forum.midibox.org/t/encoders-in-matrix-designs/19642/4 "2016-07-14T19:33:45Z")

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Thanks for the precision peter , i didn’t get why at first sight =) now clear.  
Bests,  
JK