SparkFun
SparkFun Temperature Sensor - STTS22H (Qwiic)
The SparkFun STTS22H is a Qwiic-enabled temperature sensor breakout based on ST Microelectronics' ultralow-power, high-accuracy digital temperature sensor. F...
The SparkFun STTS22H is a Qwiic-enabled temperature sensor breakout based on ST Microelectronics' ultralow-power, high-accuracy digital temperature sensor. Factory calibrated to ±0.5°C accuracy without any application-level calibration needed, it's ideal for precision temperature monitoring.
The sensor supports multiple operating modes including freerun, one-shot, and low-ODR, with current consumption dropping to just 1.75µA in one-shot mode. Four configurable I2C addresses allow multiple sensors on a single bus, and a programmable interrupt pin signals when user-defined temperature thresholds are exceeded.
Key Features
- ±0.5°C Accuracy – Factory calibrated, no additional calibration needed (-10°C to +60°C)
- Ultralow Power – 1.75µA in one-shot mode
- Qwiic Connector – Plug-and-play I2C with no soldering
- Four I2C Addresses – 0x3C (default), 0x3E, 0x38, 0x3F via solder jumpers
- Programmable Interrupt – High/low temperature threshold alerts
- Multiple Operating Modes – Freerun, one-shot, and low-ODR for battery saving
- NIST Traceability – For calibration chain requirements
Specifications
- Operating Temperature – -40°C to +125°C
- Temperature Accuracy – ±0.5°C (-10°C to +60°C)
- Operating Voltage – 1.5–3.6V (typically 3.3V via Qwiic)
- Interface – I2C (Qwiic)
- Pullup Resistors – 2.2kΩ onboard (can be disabled for multi-device buses)
Ideal For
- Precision temperature monitoring and logging
- Battery-powered IoT sensor nodes
- Environmental monitoring systems
- Threshold-based temperature alerting
Package Contents
- 1× SparkFun STTS22H Temperature Sensor (Qwiic)
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.
- 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.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- NIST traceability
- A way of linking a measurement back to standards maintained by the US National Institute of Standards and Technology. For temperature sensing, it matters when you need documented confidence that readings can be compared to recognised measurement standards.
- 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.
Find this product in
SparkFun Temperature Sensor STTS22H Schematic
Schematic · 91.0 KB · Click any page to view full size
STTS22H Datasheet
Datasheet · 1.6 MB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 655.0 KB · Click any page to view full size
Resources & Downloads
Guides, code examples, and more
Related Tutorials
Free guides on learn.littlebird.com.au
