TIDA-00484

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

TIDA-00484

Design files

Overview

This reference design uses our nano-power system timer, boost converter, SimpleLink™ ultra-low power Sub-1 GHz wireless microcontroller (MCU) platform and humidity sensing technologies to demonstrate an ultra-low power method to duty-cycle sensor end nodes leading to extremely long battery life. This 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 wake-up interval
Extremely low off-state current (270 nA for 59.97 seconds)
Ultra-low on-state current due to low active processor and radio transmit currents (3.376 mA for 30 ms)
±2% relative humidity accuracy
±0.2°C temperature accuracy

Automotive

2-wheeler & 3-wheeler traction drive

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.

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Design guide — TIDA-00484

TIDU995E.PDF (2787 K)

Reference design overview and verified performance test data

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Schematic — TIDA-00484

TIDREY5C.PDF (292 K)

Detailed schematic diagram for design layout and components

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Bill of materials (BOM) — TIDA-00484

TIDREY6C.PDF (57 K)

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

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Assembly drawing — TIDA-00484

TIDREY7C.PDF (135 K)

Detailed overview of design layout for component placement

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CAD/CAE symbol — TIDA-00484

TIDREY9C.ZIP (768 K)

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

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Gerber file — TIDA-00484

TIDCAC5C.ZIP (465 K)

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

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PCB layout — TIDA-00484

TIDREY8C.PDF (869 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Boost converters (integrated switch)

TPS61291 — Low Iq Boost Converter with 15nA Bypass Operation

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

Load switches

TPS22860 — 0.73-Ω, 5-V, ultra-low leakage load switch

Data sheet: PDF | HTML

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

Sub-1 GHz wireless MCUs

CC1310 — SimpleLink™ 32-bit Arm Cortex-M3 Sub-1 GHz wireless MCU with 128kB Flash

Data sheet: PDF | HTML

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Software

Support software

TIDCBD9 — TID BA Sub-1GHz Sniffer Display Software

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TIDCBD9 — TID BA Sub-1GHz Sniffer Display Software

Latest version

Version: 01.00.00.00

Release date: 16 Nov 2015

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TID BA Sub-1GHz Sniffer Display Software (zip) — 4875 K

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Firmware

TIDCAC6 — TIDA-00484 Firmware

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TIDCAC6 — TIDA-00484 Firmware

Latest version

Version: 01.00.00.0A

Release date: 04 Apr 2016

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TIDA-00484 Firmware (zip) — 4045 K

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Technical documentation

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	Type	Title	Date
*	Design guide	Humidity and Temperature Sensor Node for Sub-1GHz Star Networks Design Guide (Rev. E)	Sep. 20, 2018
	Technical article	Collecting environmental data with less energy and wiring	May 23, 2017
	Technical article	Why use Sub-1 GHz in your IoT application	Jul. 27, 2016
	Technical article	Trends in building automation: connected sensors for energy efficiency	Feb. 17, 2016
	Technical article	How to use boost converters in wireless sensor nodes	Oct. 06, 2015

Related design resources

Reference designs

REFERENCE DESIGN

TIDA-00374 — Humidity & Temp Sensor Node for Star Networks Enabling 10+ Year Coin Cell Battery Life Ref Design

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