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Topic: i2c temperaturesensor (Read 5175 times) previous topic - next topic

hi,

i'm searching for a cheap i2c temperaturesensor.
have you got some ideas?

best regards,
stefan

Simpson_Jr

Personally I had the chance to buy a lot of 1wire sensors cheap, haven't worked with I2C-ones yet.

I don't know what temperatures you'll measure, maybe the LM75 would do the job.

If not, a search on "I2c and temperature" for components in stock gave me this list on Mousers site.
(hopefully there's one on it suiting your needs.)

http://www2.mouser.com/Sensors/Temperature-Sensors/Board-Mount-Temperature-Sensors/_/N-7gz7qZscv7?Keyword=temperature+i2c&FS=True&Ns=Digital%20Output%20-%20Bus%20Interface|0

pwillard

You want to use the DS1621.  It costs about the same as a 1-wire temp sensor.

James C4S

When asking for a "cheap" solution, it is helpful to define what you consider to be "cheap"...
Capacitor Expert By Day, Enginerd by night.  ||  Personal Blog: www.baldengineer.com  || Electronics Tutorials for Beginners:  www.addohms.com

CrossRoads

http://store.yahoo.com/yhst-27389313707334/i2c12ditese.html 
$15
all set to plug in ...
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

MarkT

STLM75, £1.05 from Farnell UK, but its SMT!
[ I won't respond to messages, use the forum please ]

JimG

MCP9800 is less than $1.50US.  SOT23-5 package, surface mount.

Jim

TC4 Open Source Digital Thermometer and Temperature Controller
http://code.google.com/p/tc4-shield

mrjonny2

I am currently using SHT21 sensors for my project

they are however incredibly small so kind of a pain to solder but they give humidity readings and the temperature in Celsius and Fahrenheit.  I think they are about £10 a pop.

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