TIDM-FRAM-WATERMETER

Low-Cost Water Meter Implementation with FRAM Microcontroller Reference Design

Design files

TIDM-FRAM-WATERMETER

Design files

Overview

This reference design, featuring the MSP430FR4133 FRAM-based MCU, is a fully-functional battery powered magnetic pulse water meter with wired and wireless automatic meter reading (AMR) function. The instantaneous and total flow is displayed on the LCD. This design works in low power mode and reduces CPU engagement, which helps to reduce overall power consumption.

Features

Magnetic pulse measurement
2.9uA standby current
Non-volatile on-chip FRAM real-time storage
Support NFC and Sub-1GHz BoosterPack
Battery voltage monitor
This end equipment design is tested and includes HW, firmware, GUI, demo and User's Guide

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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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

Design guide — TIDM-FRAM-WATERMETER

TIDU517A.PDF (10289 K)

Reference design overview and verified performance test data

Schematic — TIDM-FRAM-WATERMETER

TIDRAX2.PDF (101 K)

Detailed schematic diagram for design layout and components

Bill of materials (BOM) — TIDM-FRAM-WATERMETER

TIDRAX3.PDF (61 K)

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

Assembly drawing — TIDM-FRAM-WATERMETER

TIDRAX5.ZIP (150 K)

Detailed overview of design layout for component placement

CAD/CAE symbol — TIDM-FRAM-WATERMETER

TIDRAX6.ZIP (2880 K)

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

Gerber file — TIDM-FRAM-WATERMETER

TIDC668.ZIP (4143 K)

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

PCB layout — TIDM-FRAM-WATERMETER

TIDRAX4.ZIP (373 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

MSP430 microcontrollers

MSP430FR4133 — 16 MHz MCU with 16KB FRAM, 2KB SRAM, 10-bit ADC, LCD, UART/SPI/I2C, IR logic, timer

Data sheet: PDF | HTML

Brushed DC (BDC) motor drivers

DRV8837 — 12-V, 1.8-A H-bridge motor driver

Data sheet: PDF | HTML

Linear & low-dropout (LDO) regulators

TPS782 — 150-mA, nano-IQ, low-dropout voltage regulator with enable from -40°C to +125°C

Data sheet: PDF | HTML

RS-485 & RS-422 transceivers

SN65HVD75 — 3.3-V half-duplex RS-485 transceiver with IEC ESD, 20 Mbps

Data sheet: PDF | HTML

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Software

Support software

TIDC664 — Water Meter Implementation with FRAM Microcontroller Software

TIDC664 — Water Meter Implementation with FRAM Microcontroller Software

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Latest version

Version: 01.00.00.00

Release date: 02 Oct 2014

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Water Meter Implementation with FRAM Microcontroller Software (zip) — 44514 K

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Technical documentation

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	Type	Title		Date
	Design guide	Water Meter Implementation With MSP430FR4xx Design Guide (Rev. A)		Oct. 15, 2014

Related design resources

Hardware development

DEVELOPMENT KIT

MSP-EXP430FR4133 — MSP430FR4133 LaunchPad™ development kit

Software development

IDE, CONFIGURATION, COMPILER OR DEBUGGER

ENERGYTRACE — EnergyTrace Technology

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