<p>The Temp Sensor for Arduino is the first project of a joint Modern Device-Liquidware collaboration. It’s capable of turning the Arduino into an instant thermometer, plugging directly into Arduino Duemilanove Analog Pins 2-5.</p>
<p>The TMP421 chip is a 12 bit I2C chip that works from minus – 40 to 125 degrees C, so the sensor is able to resolve .04 degrees C per bit. The absolute accuracy is guaranteed to be +/- 1 degree C. The relative resolution should make the sensor useful for a range of higher resolution activities such as sniffing out drafts around windows.</p>
<p>The Temp Sensor comes with a 4-pin male header (unsoldered) and 8 total pin-outs to allow for maximal flexibility in project use. With a small, narrow form factor, it’s easy to set up multiple Temp Sensors for local temperature monitoring as well.</p>
<p>A ready-to-go Arduino library is also available free for download at the <a href="http://www.liquidware.com/apps/show/77">Liquidware App Store</a> for full, off-the-shelf integration with any Arduino project.</p>
<p>The chip communicates via I2C and also has an onboard remote temperature sensing capability as well.</p>
<p><strong>Specifications</strong></p>
<ul>
<li>TMP421 chip</li>
<li>4-pin male header included (unsoldered)</li>
<li>Communicates over I2C protocol</li>
<li>1 Bi-directional data pin</li>
<li>1 Clock pin</li>
<li>Ranges from – 40C to +125C with +/ – 1C accuracy</li>
<li>Optional remote temperature probe input</li>
<li>I2C Digital Interface</li>
<li>Arduino Pin Compatible</li>
<li>+5V Tolerant I/O</li>
</ul>
<p><strong>Arduino Pin Mapping</strong></p>
<p>Analog 2 = Ground<br />
Analog 3 = Vin<br />
Analog 4 = Data<br />
Analog 5 = Clock</p>
<p><strong>Resources</strong></p>
<ul>
<li>TI TMP421 <a href="http://focus.ti.com/docs/prod/folders/print/tmp421.html">Datasheet</a></li>
<li>Arduino Temp Sensor <a href="http://www.liquidware.com/apps/show/77">library and example code</a></li>
</ul>
<p><strong>Media</strong></p>
<div style="padding-bottom: 0px; margin: 0px auto; padding-left: 0px; width: 425px; padding-right: 0px; display: block; float: none; padding-top: 0px" id="scid:5737277B-5D6D-4f48-ABFC-DD9C333F4C5D:05ace15f-6127-4f1d-bed5-5d3ea1f73b95" class="wlWriterEditableSmartContent"><embed src="http://www.youtube.com/v/Ez7lZXAD_2k&hl=en_US&fs=1&" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></div>2009-12-13T12:54:25-05:00tmp421-temperature-sensor11590742Sensors2010-02-08T21:08:05-05:00Temp Sensor2010-02-08T23:05:53-05:00Modern Device
The Temp Sensor for Arduino is the first project of a joint Modern Device-Liquidware collaboration. It's capable of turning the Arduino into an instant thermometer, plugging directly into Arduino Duemilanove Analog Pins 2-5.
The TMP421 chip is a 12 bit I2C chip that works from minus - 40 to 125 degrees C, so the sensor is able to resolve .04 degrees C per bit. The absolute accuracy is guaranteed to be +/- 1 degree C. The relative resolution should make the sensor useful for a range of higher resolution activities such as sniffing out drafts around windows.
The Temp Sensor comes with a 4-pin male header (unsoldered) and 8 total pin-outs to allow for maximal flexibility in project use. With a small, narrow form factor, it's easy to set up multiple Temp Sensors for local temperature monitoring as well.
A ready-to-go Arduino library is also available free for download at the "Liquidware App Store":http://www.liquidware.com/apps/show/77 for full, off-the-shelf integration with any Arduino project.
The chip communicates via I2C and also has an onboard remote temperature sensing capability as well.
*Specifications*
* TMP421 chip
* 4-pin male header included (unsoldered)
* Communicates over I2C protocol
* 1 Bi-directional data pin
* 1 Clock pin
* Ranges from - 40C to +125C with +/ - 1C accuracy
* Optional remote temperature probe input
* I2C Digital Interface
* Arduino Pin Compatible
* +5V Tolerant I/O
*Arduino Pin Mapping*
Analog 2 = Ground
Analog 3 = Vin
Analog 4 = Data
Analog 5 = Clock
*Resources*
* TI TMP421 "Datasheet":http://focus.ti.com/docs/prod/folders/print/tmp421.html
* Arduino Temp Sensor "library and example code":http://www.liquidware.com/apps/show/77
*Media*
<div style="padding-bottom: 0px; margin: 0px auto; padding-left: 0px; width: 425px; padding-right: 0px; display: block; float: none; padding-top: 0px" id="scid:5737277B-5D6D-4f48-ABFC-DD9C333F4C5D:05ace15f-6127-4f1d-bed5-5d3ea1f73b95" class="wlWriterEditableSmartContent"><embed src="http://www.youtube.com/v/Ez7lZXAD_2k&hl=en_US&fs=1&" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></div>
2009-12-13T12:54:26-05:00manual4529562372shopifycontinue9861x19.6311590742trueGL000084true1x2010-03-03T19:17:50-05:002010-02-08T21:07:23-05:00manual13632947622shopifycontinue9995x243.3711590742trueGL000084-5true5x2010-02-17T14:48:32-05:002010-03-09T18:32:32-05:00294756321115907422010-03-09T18:32:32-05:00http://cdn.shopify.com/s/files/1/0038/9582/products/Temp_Sensor_Flat.jpg?12682759682010-03-09T18:34:27-05:00294757122115907422010-03-09T18:34:27-05:00http://cdn.shopify.com/s/files/1/0038/9582/products/Temp_Sensor_Assembled3.jpg?12682759682010-02-08T20:26:23-05:00270552623115907422010-02-08T20:26:23-05:00http://cdn.shopify.com/s/files/1/0038/9582/products/Temp_Sensor_Arduino_Mounted_Side.jpg?1268275968