Transducer hookup

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elmsley
 
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Joined: Tue Aug 29, 2017 11:32 pm

Transducer hookup

Post by elmsley »

Noob here (with Feather, and electronics in general),
Working on a project where I have the nrf52 Feather hooked up to use the hid scan sketch, and everything works fine with my switch.
I would like to create a "sip & puff" type trigger to generate different keys. Is it possible?
Doing a bit of research, it looks like I need a 3.3v powered pressure transducer like this one:

http://www.ebay.ca/itm/0-40kPa-Atmosphe ... 0033.m2042

However I am unclear how I would wire it on the feather.

The pinout looks like this:

1 - N/C
2 - Vdd
3 - GND
4 - Vdd
5 - OUT
6 - GND

I really don't care about specific pressure measurements, only that it detects a level > 1psi or < -1psi, then send a BLE signal.

Maybe I'm going about this all wrong, but some pointers would help.

Thanks!

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adafruit_support_mike
 
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Re: Transducer hookup

Post by adafruit_support_mike »

The nRF52 can work as a BLE keyboard, and in theory you can convert just about any input into some kind of output. The devil is in the details though.

I'm afraid we don't know anything about the transducer you linked. Your best bet would be to check with the vendor to see if there's a datasheet, or trace the connections and signals by hand to see how they behave.

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