SparkFun Digital Temperature Sensor Breakout – TMP102

The TMP102 is an easy-to-use digital temperature sensor from Texas Instruments. The TMP102 breakout allows you to easily incorporate the digital temperature sensor into your project. While some temperature sensors use an analogue voltage to represent the temperature, the TMP102 uses the I2C bus of the Arduino to communicate the temperature. Needless to say, this is a very handy sensor that doesn’t require much setup.

The TMP102 is capable of reading temperatures to a resolution of 0.0625°C and is accurate up to 0.5°C. The breakout has built-in 4.7kΩ pull-up resistors for I2C communications and runs from 1.4V to 3.6V. I2C communication uses open drain signalling, so there is no need to use level shifting.

Get Started with the TMP102 Breakout Guide

Features

• Uses the I2C interface
• 12-bit, 0.0625°C resolution
• Typical temperature accuracy of ±0.5°C
• 3.3V sensor
• Supports up to four TMP102 sensors on the I2C bus at a time

Resources

• Schematic
• Eagle Files
• Hookup Guide
• Datasheet (TMP102)
• Arduino Library
• GitHub