TI Home >   TI Designs >   Microcontrollers >   A Low-power Battery-less Wireless Temperature and Humidity Sensor with Passive Low Frequency RFID

A Low-power Battery-less Wireless Temperature and Humidity Sensor with Passive Low Frequency RFID

(ACTIVE) TIDM-RFID-TEMPSENSOR

Description & Features

Technical Documents

Support & Community


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


Description

This design, featuring the ultra-low-power MSP430 MCU paired with a TMS37157 Passive Low Frequency RFID device can enable a ultra-low power wireless temperature & humidity sensor (SHT21). With RFID, applications can benefit from hermetically sealed enclosures by leveraging RFID to provide power and data transmission wirelessly through an enclosure. This design provides complete hardware, software & PC-side software to get you up and running.

Features
  • Passive Low Frequency RFID application with an ultra-low power microcontroller
  • Humidity & temperature sensing with SHT21 sensor(I2C interface to MCU)
  • An RF field of 134.2 kHz can be used to charge the wireless temperature node &serve as the communication interface.
  • Hardware is available for order (eZ430-TMS37157)
  • Hardware design files, software & PC side GUI are also provided


    

Order Now
Part Number Buy from Texas Instruments Status

EZ430-TMS37157:
PaLFI, Passive Low Frequency Evaluation Kit TMS37157

 ACTIVE

TI Devices (2)

Get more information on the TI products in this reference design.

Part Number Name Product Family
MSP430F2274  16-bit Ultra-Low-Power Microcontroller, 32kB Flash, 1K RAM  MSP430 Ultra-Low Power 16-bit MCUs 
TMS37157  Passive Low Frequency Interface Device (PaLFI) With EEPROM and 134.2 kHz Transponder Interface  NFC / RFID 


Technical Documents
Application Notes (1)
Title Abstract Type Size (KB) Date Views
Multiple Files   19 Dec 2011 1,385
More Literature (2)
Title Abstract Type Size (KB) Date Views
PDF 198 28 Aug 2013 52
PDF 212 28 Aug 2013 29
Related Tools & Software

Software (1)



Support & Community

TI E2E™ Community

TI E2E Community

As a member of my.TI you can join the TI E2E™ Community where you can ask questions, share ideas and collaborate with fellow engineers and TI experts

Contents are provided "AS IS" by the respective TI and Community contributors and do not constitute TI specifications. See Terms of Use.

Wikis

Visit the TI Wiki