TIDA-00374

Humidity & Temp Sensor Node for Star Networks Enabling 10+ Year Coin Cell Battery Life Ref Design

TIDA-00374

Design files

Overview

This reference design uses our nano-power system timer, SimpleLink™ ultra-low power wireless microcontroller (MCU) platform and humidity sensing technologies to demonstrate an ultra-low power method to duty-cycle sensor end nodes. These technologies lead to an extremely long battery life of over 10 years with a standard CR2032 lithium-ion coin-cell battery. The design includes techniques for system design, detailed test results and information to get the design up and running quickly.

 

Features
  • Use of nano-power system timer to duty-cycle the system results in 10+ year battery life from CR2032 coin cell
  • Configurable system wakeup interval
  • Low off-state current (183 nA for 59.97 seconds)
  • Ultra low on-state current due to low active processor and radio transmit currents (4.04 mA for 30 ms)
  • ±2% relative humidity accuracy
  • ±0.2°C temperature accuracy

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU797D.PDF (14380 K)

Reference design overview and verified performance test data

TIDRD83B.PDF (465 K)

Detailed schematic diagram for design layout and components

TIDRD84B.PDF (88 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRD86B.PDF (226 K)

Detailed overview of design layout for component placement

TIDRD87B.ZIP (548 K)

Files used for 3D models or 2D drawings of IC components

TIDC948B.ZIP (424 K)

Design file that contains information on physical board layer of design PCB

TIDRD85B.PDF (1373 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Real-time clocks (RTCs) & timers

TPL5100Nano power programmable timer with power gating functionality

Data sheet document-pdfAcrobat PDF open-in-new HTML
Real-time clocks (RTCs) & timers

TPL5110Ultra low power timer with MOS driver and MOSFET power ON

Data sheet document-pdfAcrobat PDF open-in-new HTML
Real-time clocks (RTCs) & timers

TPL5111Ultra low power system timer (35 nA) for power gating in duty cycled applications

Data sheet document-pdfAcrobat PDF open-in-new HTML
Analog switches & muxes

TS5A31601-Ω on-state resistance, 5-V, 2:1 (SPDT), analog switch (6-pin SOT-23, SC70 packages)

Data sheet document-pdfAcrobat PDF open-in-new HTML
Bluetooth products

CC2640SimpleLink™ 32-bit Arm Cortex-M3 Bluetooth® Low Energy wireless MCU with 128kB Flash

Data sheet document-pdfAcrobat PDF open-in-new HTML
Bluetooth products

CC2650SimpleLink™ 32-bit Arm Cortex-M3 multiprotocol 2.4 GHz wireless MCU with 128kB Flash

Data sheet document-pdfAcrobat PDF open-in-new HTML
Humidity sensors

HDC1000Low Power, 3% Accuracy Digital Humidity Sensor with Integrated Temperature Sensor

Data sheet document-pdfAcrobat PDF open-in-new HTML
Humidity sensors

HDC1008Low Power, 4% Accuracy Digital Humidity Sensor with Integrated Temperature Sensor

Data sheet document-pdfAcrobat PDF open-in-new HTML
Humidity sensors

HDC1010±2% low-power digital humidity and temperature sensor in WCSP

Data sheet document-pdfAcrobat PDF open-in-new HTML
Humidity sensors

HDC1050±3% low-power, digital humidity sensor with temperature sensor

Data sheet document-pdfAcrobat PDF open-in-new HTML
Other wireless technologies

CC2620SimpleLink™ 32-bit Arm Cortex-M3 Zigbee® RF4CE wireless MCU with 128kB Flash

Data sheet document-pdfAcrobat PDF open-in-new HTML
Zigbee products

CC2630SimpleLink™ 32-bit Arm Cortex-M3 Zigbee and 6LoWPAN wireless MCU with 128kB Flash

Data sheet document-pdfAcrobat PDF open-in-new HTML

Start development

Software

Firmware

TIDA-00374 Firmware (Rev. A) – TIDC949A.ZIP (4484 K)

Technical documentation

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Type Title Date
* Design guide Humidity and Temperature Sensor Node for Star Networks Design Guide (Rev. D) May 13, 2016
Technical article IoT is making buildings greener and more intelligent. Value versus affordability Jan. 04, 2017
More literature TIDA-00374 Firmware (Rev. A) Mar. 17, 2016
Technical article How to bring the IoT to older buildings with automation technology Aug. 13, 2015
Technical article Achieve extremely long battery life in wireless sensor nodes Jun. 18, 2015

Related design resources

Reference designs

REFERENCE DESIGN
TIDA-00484 Humidity & Temp Sensor Node for Sub-1GHz Star Networks Enabling 10+ Year Coin Cell Battery Life

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