Low-Power Flood/Freeze Detector Reference Design With Sub-1 GHz and 10-Year Coin Cell Battery Life
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Key Document


This reference design uses Texas Instruments low-power consumption digital dual temperature and humidity sensors and the SimpleLink™ ultra-low power Sub-1 GHz wireless microcontroller (MCU) platform to demonstrate a flood and freeze detector with extremely long battery life and no wiring required.

  • Ultra-low-power design resulting in 10-year battery life from single CR2032 coin cell
  • Conductive water sensing always powered on to enable continuous monitoring
  • Designed for SimpleLink™ Sub-1 GH CC1310 wireless microcontroller (MCU) LaunchPad™ development kit (LAUNCHXL-CC1310)
  • Ability to take high-resolution temperature and humidity data
  • Simple design that leads to lower cost

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Schematic/Block Diagram

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Design Files

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
HDC2010  ±2% ultra-low-power, digital humidity sensor with temperature sensor in WCSP  Sensors  Sample & Buy View Design Kits & Evaluation Modules
TPD1E10B06  Single-channel ESD in 0402 package with 10pF capacitance and 6V breakdown  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
HDC2010 Download -
TPD1E10B06 Download Download

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Technical Documents

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Datasheet (1)
Title Type Size (KB) Date
PDF 3669 23 Jul 2018
User guides (2)
Title Type Size (KB) Date
PDF 6567 17 Oct 2017
PDF 22195 10 Oct 2017
Design files (6)
Title Type Size (KB) Date
ZIP 698 17 Oct 2017
ZIP 795 17 Oct 2017
PDF 675 17 Oct 2017
PDF 97 17 Oct 2017
PDF 66 17 Oct 2017
PDF 797 17 Oct 2017
Related Tools & Software

Reference Designs  ( 2 )

Design Kits & Evaluation Modules  ( 1 )

Name Part Number Tool Type
SimpleLink™ Sub-1 GHz CC1310 wireless MCU LaunchPad™ development kit  LAUNCHXL-CC1310  Evaluation Modules & Boards 

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