Water Meter Reference Design for LC Sensors, Using Scan Interface (Scan I/F)

(ACTIVE) TIDM-WATERMETER-LCSENSOR

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Key Document

Description

In battery operated water meter, battery life time over several years is key. One of the challenges is to continuously measure the water flow information while consuming at little energy as possible. The Scan Interface (Scan I/F) sensing peripheral integrated onto the ultra-low power MSP430 microcontroller is solving this problem. In water meter designs, coupled to a LC rotation detection sensor, the Scan I/F is continuously detecting the rotation of the propeller while the rest of the microcontroller is sleeping in low-power mode. The reference design demonstrates a usage example of the Scan I/F to achieve ultra-low power consumption compared with the same detecting methodology using external circuit.

Features
  • Supports 2 LC sensor for detecting rotation movement including rotating direction
  • Ultra-low power consumption compared with external hardware solution
  • Example source code for setting up Scan I/F
  • Examples for calibration
  • Easy to install daughter sensor board for MSP-TS430PM64 target board

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Bill of Materials (BOM)

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Part Number Buy from Texas Instruments or Third Party Buy from Authorized Distributor Status

MSP-TS430PM64 :
MSP430 64-Pin Target board

$89.00(USD)


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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
MSP430FW427  16-bit Ultra-Low-Power Microcontroller for Electronic Flow Meters  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
MSP430FW428  MSP430FW42x Mixed Signal Microcontroller  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
MSP430FW429  MSP430FW42x Mixed Signal Microcontroller  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
MSP430FW427 Download Download
MSP430FW428 Download Download
MSP430FW429 Download Download

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Technical Documents

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

Application notes (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 611 12 Apr 2013 0
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 186 30 Jan 2014 0
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 102 23 Jan 2014 0
PDF 121 23 Jan 2014 0
ZIP 23 23 Jan 2014 0

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