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Customer needs version of this board, but with 12 or more in
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Customer needs version of this board, but with 12 or more in

by dan_rapp on Thu Sep 05, 2019 8:46 pm

To Adafruit Support Team:

The customer needs a version of this audio FX sound board p/n 2217 (or p/n 2133) that includes more than
11 input Triggers for buttons or switches; the customer needs at least 12 -- if not more. I wasn't able to find
such, but wanted to verify with you just in case I missed something.

Can you help us with this?

Thanks!


Dan Rapp
Technical Support
Mouser Electronics
(800) 346-6873
(817) 804-3800
www.mouser.com
QAF187B

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Re: Customer needs version of this board, but with 12 or mor

by adafruit_support_mike on Fri Sep 06, 2019 12:30 am

The VS1000 (the main chip in the FX Board) only has 11 inputs, so there's no way to increase the number of hardware trigger pins.

The VS1000 also have a Serial control interface though, so they can use a microcontroller for input and control options the FX Board can't do on its own.

A small microcontroller board like the Trinket M0 can talk to a row of I2C GPIO expanders like the MCP23017 (16 inputs x 8 pin-selectable I2C addresses = 128 inputs), then tell the FX Board what sounds to play.

Our tutorial for the FX Board has more information about the Serial interface:

https://learn.adafruit.com/adafruit-aud ... io-control

and we have code support for the MCP23017 in C and CircuitPython.

Another option would be to brute-force the solution by using more than one FX Board and separate speakers.

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