SparkFun
SparkFun Digital Temperature Sensor - TMP102 (Qwiic)
The SparkFun TMP102 Qwiic breakout provides accurate digital temperature readings over I2C with minimal wiring. Based on the Texas Instruments TMP102, the se...
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The SparkFun TMP102 Qwiic breakout provides accurate digital temperature readings over I2C with minimal wiring. Based on the Texas Instruments TMP102, the sensor delivers 0.0625 °C resolution and ±0.5 °C accuracy, communicating entirely over the I2C bus — no analogue conversion needed.
This version features two Qwiic connectors for plug-and-play I2C daisy-chaining, an address jumper for multi-sensor setups, and standard 0.1" header breakouts for breadboard use. Built-in 4.7 kΩ pull-up resistors and open-drain I2C signalling mean no level shifting is required.
Key Features
- 0.0625 °C Resolution – High-precision temperature readings
- ±0.5 °C Accuracy – Reliable across the measurement range
- I2C Interface – Digital output with configurable address
- 2× Qwiic Connectors – Quick I2C connection, no soldering required
- Address Jumper – For running multiple TMP102 sensors on one bus
- Built-In Pull-Ups – 4.7 kΩ I2C pull-up resistors onboard
- 0.1" Header Breakout – Also compatible with standard breadboards
Specifications
- Sensor: Texas Instruments TMP102
- Resolution: 0.0625 °C
- Accuracy: ±0.5 °C
- Operating Voltage: 1.4–3.6 V
- Interface: I2C (Qwiic / 0.1" headers)
Package Contents
- 1× SparkFun TMP102 Qwiic Digital Temperature Sensor Breakout
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
- Headers
- Rows of connector contacts on a fixed pitch (commonly 2.54 mm) used to link a board to a breadboard, jumper wires, or another board. They come as male pin headers and female socket headers; when a module ships with pre-soldered headers it can be used straight away, whereas bare pads require soldering the pins yourself.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- Qwiic
- Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
- UPS
- An uninterruptible power supply is a battery-backed power system that keeps a device running when external power is unplugged or fails. For an embedded computer, it helps prevent sudden shutdowns that can corrupt files or interrupt a project.
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Brands
SparkFun TMP102 Qwiic Schematic
Schematic · 88.5 KB · Click any page to view full size
TMP102 Datasheet
Datasheet · 1.1 MB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 639.9 KB · Click any page to view full size
Resources & Downloads
Guides, code examples, and more
Related Tutorials
Free guides on learn.littlebird.com.au
