HELP finding a switching solution please

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sonolink

Well-known member
Joined
Feb 15, 2010
Messages
1,368
Location
London-Madrid
Hi guys,

I bought a couple of boards that playback some prerecorded audio. Basically it has 8 pins that when grounded will trigger an mp3.
This is the board I got:

https://es.aliexpress.com/item/3305...jNDff0FbTC2Ap__bylfE3AbAKSqPqOOBoCae4QAvD_BwE

My question is: is there a way to use a momentary footswitch to trigger sequentially each pin? The idea is to use it in a guitar pedal that would allow the player to trigger prerecorded sounds through his amp. Since 8 separate footswitches make quite a big pedal I was wondering if a switch single switch could be used to trigger the pins in sequence?

Thanks in advance for any ideas and suggestions :)
Cheers
Sono
 
..a three bit counter with reset, then a one-of-eight decoder?

Look at cmos 4000-series standard chips
Thanks for the reply Gyraf. TBH I've never dealt with CMOS so I guess I'll have to dig into logic :)

I hope I can find some ready made boards.

Thanks!
Cheers
Sono
 

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