Ultrasonic Sensing Water Meter Front-End Reference Design


Design files


This reference design helps designers develop an ultrasonic water-metering subsystem using an integrated, ultrasonic sensing solution (USS) module, which provides superior metrology performance with low-power consumption and maximum integration. The design is based on the 256KB MSP430FR6047 microcontroller (MCU), with integrated high-speed, ADC-based, signal acquisition and an integrated low energy accelerator (LEA) to optimize digital signal processing.

  • Best-in-class metrology performance: 25-ps zero-flow drift (ZFD) and 32-ps single-shot standard deviation
  • Low-power consumption: Approximately 2.5 μA with 1-MHz transducer at 1 measurement per second for metrology
  • Flexibility to test different pipes and transducers; direct interface to pair of transducers
  • Easy to test and customize using Ultrasonic Sensing Design Center graphical user interface (GUI)
  • Ultrasonic sensing software library includes time of flight (ToF) algorithms
  • Standalone demo using liquid-crystal display (LCD)

Design files & products

Design files

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

TIDUDN0.PDF (19315 K)

Reference design overview and verified performance test data

TIDRW71A.PDF (582 K)

Detailed schematic diagram for design layout and components

TIDRW72.PDF (102 K)

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

TIDRW73A.PDF (487 K)

Detailed overview of design layout for component placement

TIDRW75A.ZIP (2201 K)

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


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

TIDRW74A.PDF (2220 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

MSP430 microcontrollers

MSP430FR604516-MHz MCU with 128-KB FRAM, LCD, 12-bit high speed 8-MSPS sigma-delta ADC and integrated sensor AFE

Data sheet document-pdfAcrobat PDF open-in-new HTML
MSP430 microcontrollers

MSP430FR604716-MHz MCU with 256-KB FRAM, LCD, 12-bit high speed 8-MSPS sigma-delta ADC and integrated sensor AFE

Data sheet document-pdfAcrobat PDF open-in-new HTML
MSP430 microcontrollers

MSP430FR60471Ultrasonic Sensing MCU with 256KB FRAM, 8KB RAM, LCD, I2C Bootloader for flow meters

Data sheet document-pdfAcrobat PDF open-in-new HTML

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Evaluation board

EVM430-FR6047 – MSP430FR6047 Ultrasonic Sensing Evaluation Module

The EVM430-FR6047 evaluation kit is a development platform to evaluate the performance of the MSP430FR6047 MCUs for ultrasonic sensing applications (e.g. smart water meters). The MSP430FR6047 MCU is an ultra-low-power device with an integrated ultrasonic sensing analog front end (USS) for high (...)

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Support software

Ultrasonic Sensing Water Meter Front-End Software – TIDCEN3.ZIP (35294 K)

Technical documentation

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Type Title Date
* Design guide Ultrasonic Sensing Subsystem Reference Design for Water Flow Measurement Oct. 01, 2017
White paper Modernizing the grid to make it more resilient and reliable through technology (Rev. A) Jan. 08, 2019

Related design resources

Software development

MSP-ULTRASONIC-DESIGN-CENTER MSP430 MCUs Ultrasonic Sensing Design Center

Support & training

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