[sdiy] Very cheap SPI pressure sensors.. anybody ??

[Mike Bryant]

Or you might be able to use a printer scanner head as an all in one solution, provided the piano roll isn't wider than A4 and a bit.   No idea on the electronics behind those though

-----Original Message-----
From: Synth-diy [mailto:synth-diy-bounces at synth-diy.org] On Behalf Of Ingo Debus
Sent: 20 March 2021 13:03
To: SDIY List
Subject: Re: [sdiy] Very cheap SPI pressure sensors.. anybody ??


> Am 19.03.2021 um 23:06 schrieb Didrik Madheden <nitro2k01 at gmail.com>:
> 
> So that gives me a different idea for a working principle based on
> light: reflection. No hole=light reflects back. Only one side of the 
> paper has electronics. This could be done with either a visible LED 
> (for an additional visualizer effect) or an IR LED (for 
> authentic-looking operation).

That was my idea too. Would the good old CNY70 do the trick?
https://www.vishay.com/ppg?83751

But then, 90 of these will eat quite a lot of power for the infrared-LEDs…

Ingo
_______________________________________________
Synth-diy mailing list
Synth-diy at synth-diy.org
http://synth-diy.org/mailman/listinfo/synth-diy
Selling or trading? Use marketplace at synth-diy.org