Octopus LM35 Analog Temperature Brick
100 units will be available shortly.
Octopus Electronic Bricks, you can use them build electronics projects just as easy as piling bricks. By using Octopus electronic bricks, you may connect Arduino/Freaduino compatible boards easily with various digital, analog and I2C/Uart interfaces. These the breadboard-less firm connection are prepared to extensive modules like poteniometers, sensors, relays, servos…even buttons, just plug and play.This brick uses the LM35D LM35 Precision Centigrade Temperature Sensors from TI. The LM35 series are precision integrated-circuit temperature devices with an output voltage linearly- proportional to the Centigrade temperature. The LM35 device has an advantage over linear temperature sensors calibrated in Kelvin, as the user is not required to subtract a large constant voltage from the output to obtain convenient Centigrade scaling. The LM35 device does not require any external calibration or trimming to provide typical accuracies of ±1⁄4°C at room temperature and ±3⁄4°C over a full −55°C to 150°C temperature range. Lower cost is assured by trimming and calibration at the wafer level. The low-output impedance, linear output, and precise inherent calibration of the LM35 device makes interfacing to readout or control circuitry especially easy. The device is used with single power supplies, or with plus and minus supplies. As the LM35 device draws only 60 μA from the supply, it has very low self-heating of less than 0.1°C in still air. The LM35 device is rated to operate over a −55°C to 150°C temperature range, while the LM35C device is rated for a −40°C to 110°C range (−10° with improved accuracy). The LM35-series devices are available packaged in hermetic TO transistor packages, while the LM35C, LM35CA, and LM35D devices are available in the plastic TO-92 transistor package. The LM35D device is available in an 8-lead surface-mount small-outline package and a plastic TO-220 package.
The Freaduino Sensor Shield is the perfect shield to connect this senor to Arduino. Or Freaduino UNO which we had pre-stray Octopus Brick interface.
Feature
Power supply needs: 5V
Pin Definition: S-Sigal V-VCC G-GND
Wide detecting scope
Fast response and High sensitivity
±0.5°C Accuracy from -10°C to +85°C
Usable temperature range: -55 to 125°C (-67°F to +257°F)
9 to 12 bit selectable resolution
Uses 1-Wire interface- requires only one digital pin for communication
Unique 64 bit ID burned into chip
Multiple sensors can share one pin
Temperature-limit alarm system
Query time is less than 750ms
Size: 19x27mm
Calibrated Directly in Celsius (Centigrade)
•Linear + 10-mV/°C Scale Factor •0.5°C Ensured Accuracy (at 25°C) •Rated for Full −55°C to 150°C Range •Suitable for Remote Applications •Low-Cost Due to Wafer-Level Trimming •Less than 60-μA Current Drain •Low Self-Heating, 0.08°C in Still Air •Non-Linearity Only ±1⁄4°C Typical •Low-Impedance Output, 0.1 Ω for 1-mA Loa
Resources:
Please visit the ElecFreaks wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials.
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