TIDM-BLE-REEDMTR

Flow Measurement Reference Design with Reed Switches and BLE

TIDM-BLE-REEDMTR

Design files

Overview

TIDM-BLE-REEDMTR is an elegant single chip reference design with minimal component count to transform a mechanical water or gas meter into a smart meter. This system consumes less than 11uA in standby mode, with RF connection in every 5 seconds. The total mechanical gear counter can be replaced by two Reed switches, eliminating the process to redesign the existing casing. The Reed switches are controlled by the low-power sensor controller engine of the CC2650 SimpleLink™ wireless MCU. Bluetooth Low Energy (BLE) communications provide the users with the ability to read the meter via a smart phone or PC at any time within 10 meters. The software package of this reference design provides a fast setup of the CC2650  and a custom profile for the BLE application.

Features
  • Less than 11uA Standby Current for both Bluetooth Connected and Advertising Mode
  • 9-yr system operation with Button Cell Battery
  • SimpleLink™ Bluetooth CC2650 wireless MCU provides a single chip solution for measurement and communications
  • Two Reed Switches for Rotational Detection
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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.

TIDUB33.PDF (819 K)

Reference design overview and verified performance test data

TIDRJN1.ZIP (326 K)

Detailed schematic diagram for design layout and components

TIDRJN2.PDF (91 K)

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

TIDRJN3.ZIP (85 K)

Detailed overview of design layout for component placement

TIDRJN5.ZIP (791 K)

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

TIDCBM8.ZIP (173 K)

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

TIDRJN4.ZIP (1194 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Low-power 2.4-GHz products

CC2650SimpleLink™ 32-bit Arm Cortex-M3 multiprotocol 2.4 GHz wireless MCU with 128kB Flash

Data sheet: PDF | HTML

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Software

Technical documentation

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Type Title Date
* Design guide Flow Measurement With Reed Switches and BLE Design Guide Dec. 11, 2015
Application note Measuring CC13xx and CC26xx current consumption (Rev. D) PDF | HTML Jan. 10, 2019
More literature SimpleLink CC2650 Evaluation Module Kit Quick Start Guide Nov. 05, 2015
Product overview SimpleLink Bluetooth Smart CC2640 Wireless Microcontroller Feb. 10, 2015

Related design resources

Reference designs

REFERENCE DESIGN
TIDM-LC-WATERMTR Water Meter Reference Design for two LC Sensors, Using Extended Scan Interface (ESI) TIDM-ULTRASONIC-FLOW-TDC Ultrasonic Water Flow Meter Design using Time to Digital Conversion

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