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low cost methods to measure temperture and pressure

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coolhand21

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Hi I'm exploring methods to measure temperature and pressure, My temperature range is between 40- 180 degrees f and and my pressure range is between -10 to 30 psi.

What low cost methods are available?

cool
 

zoro1

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Arduino ,LM355,LCD16x2 and some digital pressure sensor...In the library in the Arduino IDE code for LCD is present.The same is for pressure.
 

kender

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There are a lots of inexpensive ($1 and less) temperature sensors. LM35, LM75, thermistors

As for pressure sensors, search these manufacturers:
* Honeywell </title> <meta name="robot" content="Index, NoFollow"> <link rel="StyleSheet" HREF="http://sensing.honeywell.com/prism_asset/html_stylesheet/html_stylesheet314188.css" type="text/css" /> <meta name="generator" content="PRISMtm 5.5 - Web Impact Inc. /
* Freescale Pressure Sensors
* Omega Engineering Sensors, Thermocouple, PLC, Operator Interface, Data Acquisition, RTD (not really low cost, though)

Also search the electronic component distributors:
* DigiKey Pressure | Digi-Key (lots of pressure sensors)
* Mouser Capteurs de force / pression
* Jameco https://www.jameco.com

BTW, check out this yahoo group dedicated to sensors: sensorforum : Sensor Forum
 

millwood

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temperature is fairly easy to measure: a diode is sufficient.

pressure is a little bit tougher. you can probably measure the capacitance of a diagram, or use stress sensor for that.
 

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