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Safe and Sound
Blog Safe&Sound: Wearable Tracking Device for Miners - 06: KIT review [DLP-7970ABP]
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  • Author Author: sunnyiut
  • Date Created: 4 Jul 2017 7:28 PM Date Created
  • Views 774 views
  • Likes 2 likes
  • Comments 1 comment
  • msp432_launchpad
  • safe and sound design challenge
  • msp432p401r
  • dlp-7970abp
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Safe&Sound: Wearable Tracking Device for Miners - 06: KIT review [DLP-7970ABP]

sunnyiut
sunnyiut
4 Jul 2017

Title: Wearable Tracking Device for Miners

By: sunnyiut                                                 

Previous Blogs
01: Introduction02: The Kit
03: Review_MSP432P401R04: Review_430BOOST-SHARP96
05: Review_BOOSTXL-SENSORS

 

Design Challenge: Safe and Sound Wearables

Blog number: 06

 

 

Intro:

It's my 4th blog on KIT review and this time I'll check out the  DLP-7970ABPDLP-7970ABP NFC/RFID r eader/writer module. This booster pack has TRF7970A NFC transceiver and communicates with the MCU using SPI protocol.

I'll be using  MSP-EXP432P401RMSP-EXP432P401R launchpad to read and write the RFID tag included with the boosterpack and a PC GUI to display the contents of the tag image

 

Features:

 

  • Integrated 13.56 MHz NFC/ HF RFID IC
  • Supports ISO 15693, 18000-3, 14443A/B, and FeliCa
  • Supports three different modes
    • RFID/NFC Reader
    • NFC Peer
    • In Card Emulation mode
  • Supports NFC Type 2, 3, 4A, 4B, and 5 Tag Platforms
  • Package includes 1 Type 2 NFC Tag

 

Review Description:

image

 

     example codes:

     Read and write Data from the TAG using SPI comm with TRF7970A

     Example codes has been taken from TI product page reference design.

     1.Near Field Communication (NFC) Reader/Writer Reference Design

 

     IDE:                          Code Composer Studio v7.1.0

     Resource:                  Resource Explorer [dev.ti.com/tirex]

Launchpad  MSP-EXP432P401RMSP-EXP432P401R

     GUI:                          TIDM-NFC-RW Software (Rev. A)

 

Demonstrates -

  • detecting the TAG and read data from the memory blocks
  • communicating with PC GUI through UART to display data and TAG information
  • write new data to the TAG using the text editor in the GUI software

 

 

Board Connection:

 

After mounting the DLP NFC BoosterPack, The power LED turns on.

However, PORT1.0 LED is still off which indicates that the UART communication with PC GUI software is not established.

imageimage

 

GUI:

 

The GUI needs to configure the serial COM port to establish connection  with the  launchpad.

in my case it was -

     COM port : 4

     BAUDrates : 115200

 

we can select "auto connect" where, the GUI software automatically tries out all the COM ports and connects to the Launchpad.

imageimage

          Launchpad not connected to the GUI                                                             Connection established on COM4 @ 115200

 

When the GUI software and the Launchpad establish the connection between them, the red LED [@P1.0] turns on. If the RFID tag is placed near the onboard antenna, the DLP 7970ABP detects the TAG and turns on the Blue LED [@P2.2].

imageimage

 

This blue LED indicates that the R/W function is taking place and the GUI displays the data inside the TAG on 'Reader/Writer window.image

 

 

Operating distance [max] : ~35mm

 

At the left side of the window, it presents the TAG information:

 

TAG type: T5T

Technology: NFC-V

ID: 0xE00700001ED1AD82

 

 

The right side of the window presents the data stored inside the Memory Blocks of the Tag.

 

This GUI gives the facility of Formatting the blocks and writing new data into the Tag.

 

 

 

Formatting the TAG erases the data inside the blocks and prepare the tag for new data to be written.

imageimage

 

Writing new data into the tag can be done easily by editing the Text inside the text editor and clicking the WRITE button.

imageimageimage

 

There is a URL editor by which an URL can be written into the tag:

image

 

Project Update:

In my project proposal for 'SAFE & Sound' design challenge, I'll be using the MSP432P401r for designing a wearable device which will have the sensors connected. But to implement the RFID reader i'll need another MCU and I don't have another MSP432 with me right now. Also this T5T tags are not available in my locality, So I cannot test the system for multiple entries.

Considering all these staff I'll go for some other solution which I have in my hand right now, for designing my system.

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Top Comments

  • DAB
    DAB over 8 years ago +1
    I like the RFID approach. Good positive ID on people in the mine. You can also add a PIR sensor that detects the workers and finds anyone without an RFID. That way you can do a safety alert or intruder…
  • DAB
    DAB over 8 years ago

    I like the RFID approach.

     

    Good positive ID on people in the mine.

     

    You can also add a PIR sensor that detects the workers and finds anyone without an RFID.

     

    That way you can do a safety alert or intruder alert to get the situation corrected.

     

    DAB

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