Electronics > Projects, Designs, and Technical Stuff

Breath Controller for synths w/ BC input: need design help

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artico78:
I found that if its useful, i received the pressure sensor, different from the one i ordered but ok, the model is mpx2010dp, but i think it will work, first i will use it with arduino for test, then i will calculate all with the info you posted and simulate all on Proteus software.

artico78:
Take a look someone had the same idea and done it http://mitxela.com/projects/breath_controller

stubbsonic:
Thanks for those, Artico.

My choice of breath sensor was based on other projects that had different ranges. In hindsight (and perhaps down the road), more research about pressure range might be a useful step. One advantage of the MPX2010 is that though it requires 1.45 psi to max (which is blowing quite hard into a sealed tube), you can have a working operable range below that, with headroom for transient/bursts that might exceed some predicted max.

The person with the similar idea seemed to be operating with the same goal, but was perhaps a bit less cautious about damage. Also, that build looks like a nightmare!

I'm hoping that this build when tested and finalized will be easily breadboarded and ultimately put on a proto-board with these easily available and through-hole mounted components. My visions of the mechanical parts; hose, condensation-management, and vent adjustment, are still pretty vague.

artico78:
Tomorrow i will receive in my laboratory a broken BC3 i will disassemble and take a look inside before fix it, i received also an mpxm2010gs in smd technology. I will have good time, soon i will post some pictures of open BC3

stubbsonic:
I've searched but never found either pictures or schematics from a BC3. That will be very valuable. Good luck with the repair.

I finally have time today to troubleshoot my breadboard build of Chuck White's circuit.

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