air pressure sensor needed

sss · 23rd January 2008, 01:47 AM

something like the ones used in digital tire gauges ,where can i get those? + datasheet

Conrad Hoffman · 23rd January 2008, 05:09 AM

Search for barometric pressure sensors. I think Spark Fun Electronics (Google is your friend) has some. There are also much cruder types, probably closer to the tire application. Try Honeywell also.

error401 · 23rd January 2008, 06:11 AM

Freescale makes them as well. You probably want something like the MPX5700. DigiKey carries them, they're about $15-20 each.

OzMikeH · 24th January 2008, 02:57 AM

for up to 3 bar with very good accuracy use an automotive MAP sensor off a turbocharged vehicle, gives a 0-5V signal.
They make so many of them they are quite cheap.

standard 1 bar map sensor is sensitive enough to use as a barometer..... you just made me realise how I can build my own barograph, I've always wanted one.

sss · 25th January 2008, 06:47 AM

Quote:

Originally posted by OzMikeH
you just made me realise how I can build my own barograph, I've always wanted one.

glad i could help

just ordered one form freescale
thanx everybody!

23rd January 2008, 01:47 AM	#1
sss diyAudio Member Join Date: Jul 2003 Location: Israel , haifa	air pressure sensor needed something like the ones used in digital tire gauges ,where can i get those? + datasheet __________________ if you are not living on the edge you are taking too much space

23rd January 2008, 06:11 AM	#3
error401 diyAudio Member Join Date: Mar 2007	Freescale makes them as well. You probably want something like the MPX5700. DigiKey carries them, they're about $15-20 each. __________________ http://audio.gotroot.ca/

24th January 2008, 02:57 AM	#4
OzMikeH diyAudio Member Join Date: Mar 2007	for up to 3 bar with very good accuracy use an automotive MAP sensor off a turbocharged vehicle, gives a 0-5V signal. They make so many of them they are quite cheap. standard 1 bar map sensor is sensitive enough to use as a barometer..... you just made me realise how I can build my own barograph, I've always wanted one. __________________ Help some guys with funny hair bang two rocks together really hard. http://athome.web.cern.ch/athome/LHCathome/whatis.html

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23rd January 2008, 05:09 AM	#2
Conrad Hoffman diyAudio Member Join Date: Mar 2007 Location: Canandaigua, NY USA	Search for barometric pressure sensors. I think Spark Fun Electronics (Google is your friend) has some. There are also much cruder types, probably closer to the tire application. Try Honeywell also.

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