VIDEO: Track Temperature & Humidity with Silicon Labs Sensors
About Symmetry Electronics Team
Established in 1998, Symmetry Electronics is a focused global distributor of wireless connectivity solutions, sensors, and audio-video technologies. Offering comprehensive design support and available-to-ship inventory, Symmetry is committed to helping engineers accelerate time to market, reduce costs, and offer modern solutions for their IoT designs. Acquired by Berkshire Hathaway company, TTI, Inc. in 2017, Symmetry Electronics is part of the Exponential Technology Group (XTG) – a supergroup of electronic component distributors and engineering services firms working together to advance the electronics industry. For more information, visit www.symmetryelectronics.com.
In this video, Symmetry Electronics Application Engineer Tyler Wojciechowicz shows how to visualize sensor data in an easy to read on-screen GUI using a Silicon Labs Si7021 temperature and humidity sensor.
Bill of materials for this demo: Arduino Uno, Si7021, 10-pin DFN to DIP breakout, (2) male header pins, 10uF capacitor
Applications:
- HVAC/R
- Thermostats/humidistats
- Respiratory therapy
- White goods
- Indoor weather stations
- Micro-environments/data centers
- Automotive climate control and defogging
- Asset and goods tracking
- Mobile phones and tablets
Key Features:
- Precision relative humidity sensor
- High accuracy temperature sensor
- -10° to 85° C sensing capability
- Low power consumption (150uA)
- Factory-calibrated
- Excellent long term stability
- Optional factory-installed cover
Head on over to the official Arduino page to download the IDE:
Then head to the tutorials page to learn more about how to use your Arduino:
If you haven’t used Processing before, you can download it here:
Then head to the tutorials page to learn more about how to use Processing:
First wire up your Si7021 following this wiring diagram:
Next, download the example Arduino code here:
And download the example Processing code here:
Once you have uploaded the Arduino code, start Processing and open the Processing example code. Change your COM port to match the COM port of your Arduino (see comments in code), and then run the processing code. If everything is wired up correctly and you have the correct COM port selected, you should see a live feed of your temperature and relative humidity.
All relative documents and manuals to the Si70211 can be downloaded from here:
About Symmetry Electronics Team
Established in 1998, Symmetry Electronics is a focused global distributor of wireless connectivity solutions, sensors, and audio-video technologies. Offering comprehensive design support and available-to-ship inventory, Symmetry is committed to helping engineers accelerate time to market, reduce costs, and offer modern solutions for their IoT designs. Acquired by Berkshire Hathaway company, TTI, Inc. in 2017, Symmetry Electronics is part of the Exponential Technology Group (XTG) – a supergroup of electronic component distributors and engineering services firms working together to advance the electronics industry. For more information, visit www.symmetryelectronics.com.