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...
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 is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- Headers
- Rows of metal pins used to plug a module into a breadboard or connect it with jumper wires. Pre-soldered headers make the module easier to use straight away without needing to solder 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.
Find this product in
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
