TIDA-00484
Humidity & Temp Sensor Node for Sub-1GHz Star Networks Enabling 10+ Year Coin Cell Battery Life
TIDA-00484
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
Industrial
- Air quality sensor
- Analog security camera
- Basic thermostat
- Battery powered motion detector
- Battery powered video doorbell
- Drone payload - camera
- E-bike HMI
- E-bike motor controller
- Electric scooter
- Electronic shelf label
- Fault indicator (FI)
- Fixed wired IP camera
- Humidity process analytics
- Line powered motion detector
- Line powered video doorbell
- Loop smoke & heat detector (commercial)
- MRI subsystem module
- Off-highway vehicles sensor systems
- PTZ wired IP camera
- Power source/load switching
- Pulse oximeter - clinical
- Pulse oximeter - personal
- Rail sensing & monitoring systems
- Residential smoke & heat detector
- Self-balancing personal transporter
- Sensor modules/tags for asset tracking
- Smart thermostat
- Spectrum analyzer
- Temperature & humidity sensor
- Thermal imaging camera
- Treadmill
- Vector signal transceiver (VST)
- Water leak detector
- Wearable fitness & activity monitor
- Wireless communications test
- Wireless security camera
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDU995E.PDF (2787 K)
Reference design overview and verified performance test data
TIDREY5C.PDF (292 K)
Detailed schematic diagram for design layout and components
TIDREY6C.PDF (57 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDREY7C.PDF (135 K)
Detailed overview of design layout for component placement
TIDREY9C.ZIP (768 K)
Files used for 3D models or 2D drawings of IC components
TIDCAC5C.ZIP (465 K)
Design file that contains information on physical board layer of design PCB
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 sheetHumidity sensors
HDC1000 — Low Power, 3% Accuracy Digital Humidity Sensor with Integrated Temperature Sensor
Data sheetHumidity sensors
HDC1008 — Low Power, 4% Accuracy Digital Humidity Sensor with Integrated Temperature Sensor
Data sheetHumidity sensors
HDC1010 — ±2% low-power digital humidity and temperature sensor in WCSP
Data sheetHumidity sensors
HDC1050 — ±3% low-power, digital humidity sensor with temperature sensor
Data sheetLoad switches
TPS22860 — 0.73-Ω, 5-V, ultra-low leakage load switch
Data sheetReal-time clocks (RTCs) & timers
TPL5100 — Nano power programmable timer with power gating functionality
Data sheetReal-time clocks (RTCs) & timers
TPL5110 — Ultra low power timer with MOS driver and MOSFET power ON
Data sheetReal-time clocks (RTCs) & timers
TPL5111 — Ultra low power system timer (35 nA) for power gating in duty cycled applications
Data sheetSub-1 GHz products
CC1310 — SimpleLink™ 32-bit Arm Cortex-M3 Sub-1 GHz wireless MCU with 128kB Flash
Data sheetStart development
Technical documentation
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 6
| 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 | |
| More literature | TIDA-00484 Firmware (Rev. A) | Apr. 05, 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
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.