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TIDA-00374

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

Design files

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
Industrial
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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

download Design guide — TIDA-00374
TIDU797D.PDF (14380 K)

Reference design overview and verified performance test data

download Schematic — TIDA-00374
TIDRD83B.PDF (465 K)

Detailed schematic diagram for design layout and components

download Bill of materials (BOM) — TIDA-00374
TIDRD84B.PDF (88 K)

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

download Assembly drawing — TIDA-00374
TIDRD86B.PDF (226 K)

Detailed overview of design layout for component placement

download CAD/CAE symbol — TIDA-00374
TIDRD87B.ZIP (548 K)

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

download Gerber file — TIDA-00374
TIDC948B.ZIP (424 K)

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

download PCB layout — TIDA-00374
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

TPL5100 — Nano-powered programmable timer with power gating functionality and MOS driver

Data sheet: PDF | HTML
Real-time clocks (RTCs) & timers

TPL5110 — Nano-powered system timer with MOS driver and manual MOSFET power ON

Data sheet: PDF | HTML
Real-time clocks (RTCs) & timers

TPL5111 — Ultra low power system timer (35 nA) for power gating in duty cycled applications

Data sheet: PDF | HTML
Analog switches & muxes

TS5A3160 — 1-Ω on-state resistance, 5-V, 2:1 (SPDT), analog switch (6-pin SOT-23, SC70 packages)

Data sheet: PDF | HTML
Humidity sensors

HDC1000 — Low Power, 3% Accuracy Digital Humidity Sensor with Integrated Temperature Sensor

Data sheet: PDF | HTML
Humidity sensors

HDC1008 — Low Power, 4% Accuracy Digital Humidity Sensor with Integrated Temperature Sensor

Data sheet: PDF | HTML
Humidity sensors

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

Data sheet: PDF | HTML
Humidity sensors

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

Data sheet: PDF | HTML
Low-power 2.4-GHz products

CC2630 — SimpleLink™ 32-bit Arm Cortex-M3 Zigbee and 6LoWPAN wireless MCU with 128kB Flash

Data sheet: PDF | HTML
Low-power 2.4-GHz products

CC2640 — SimpleLink™ 32-bit Arm Cortex-M3 Bluetooth® Low Energy wireless MCU with 128kB Flash

Data sheet: PDF | HTML
Low-power 2.4-GHz products

CC2650 — SimpleLink™ 32-bit Arm Cortex-M3 multiprotocol 2.4 GHz wireless MCU with 128kB Flash

Data sheet: PDF | HTML
Other wireless products

CC2620 — SimpleLink™ 32-bit Arm Cortex-M3 Zigbee® RF4CE wireless MCU with 128kB Flash

Data sheet: PDF | HTML

Start development

Software

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 PDF | HTML Jan. 04, 2017
Technical article How to bring the IoT to older buildings with automation technology PDF | HTML Aug. 13, 2015
Technical article Achieve extremely long battery life in wireless sensor nodes PDF | HTML Jun. 18, 2015
Technical article What is the IQ of your home or building? Is it indeed smart? PDF | HTML Apr. 20, 2015

Related design resources

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

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