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# SparkFun Digital Temperature Sensor - TMP102 (Qwiic)

**Type:** Product page · **SKU:** SEN-16304 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/sparkfun-digital-temperature-sensor-tmp102-qwiic.html ([markdown](https://core-electronics.com.au/sparkfun-digital-temperature-sensor-tmp102-qwiic.html.md))

We all like to know the temperature, right? Well, with the SparkFun TMP102 Digital Temperature Sensor, we've made it just about as easy as it gets. Based on the...

## Pricing

- **Price:** $13.70 (inc GST) — $12.45 AUD, exc GST
- **Quantity discounts:** 5+ $12.08 (exc GST) · 25+ $11.84 (exc GST) · 100+ $11.34 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## How to buy

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- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/SEN-16304:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

We all like to know the temperature, right? Well, with the SparkFun TMP102 Digital Temperature Sensor, we've made it just about as easy as it gets. Based on the original [Digital Temperature Sensor Breakout - TMP102](https://core-electronics.com.au/search/?q=13314), we've added Qwiic connectors to bring this board into our plug-and-play Qwiic Ecosystem and added an address jumper instead of breaking out the address pin. However, Sparkfun still have broken out 0.1"-spaced pins in case you prefer to use a breadboard.

The TMP102 itself is an easy-to-use digital temperature sensor from Texas Instruments. While some temperature sensors use an analog voltage to represent the temperature, the TMP102 uses the I2C bus of the Arduino to communicate the temperature.

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 4.7kO pull-up resistors for I2C communications and runs from 1.4V to 3.6V. I2C communication uses an open drain signaling, so there is no need to use level shifting.

*The SparkFun Qwiic Connect System is an ecosystem of I2C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can't hook it up wrong.*

 [Get Started with the Qwiic TMP102 Digital Temperature Sensor Guide](https://learn.sparkfun.com/tutorials/sparkfun-qwiic-digital-temperature-sensor---tmp102-hookup-guide)**Features**

- Uses the I2C interface
- I2C Address: **0x48 by default** (Three additional addresses available, as well)
- 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
- 2x Qwiic Connectors

**Documents**

- [Schematic](https://core-electronics.com.au/attachments/localcontent/SparkFun_TMP102_Qwiic-Schematic_90636b5a1d7.pdf)
- [Eagle Files](https://core-electronics.com.au/attachments/localcontent/16304-TMP102-Qwiic_EagleFiles_165001b41c1.zip)
- [Hookup Guide](https://learn.sparkfun.com/tutorials/tmp102-digital-temperature-sensor-hookup-guide)
- [Datasheet](https://core-electronics.com.au/attachments/localcontent/tmp102-Datasheet_110449fac2b.pdf) (TMP102)
- [Qwiic Info Page](https://www.sparkfun.com/qwiic)
- [Arduino Library](https://github.com/sparkfun/SparkFun_TMP102_Arduino_Library)
- [GitHub Hardware Repo](https://github.com/sparkfun/Temperature_Sensor_TMP102_Qwiic)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/6/16304-sparkfun_digital_temperature_sensor_-_tmp102__qwiic_-01.jpg)