Piezoelectric Airflow Sensor Reference Design


Design files


This Piezoelectric Airflow Sensor is intended for use in systems that require fan airflow detection. This can include server intake/exhaust airflow detection, as well as desktop computer airflow.  The Piezoelectric Airflow Sensor reference design is a simple, low cost solution which would help designers who are looking for a means to detect the presence or absence of fan airflow in existing systems.


• Piezoelectric film sensor can be used in conjunction with an MSP430 microcontroller to provide a low-cost solution to detecting the presence or absence of fan airflow
• Small solution size with efficient layout considerations
• MSP430 LaunchPad BoosterPack form factor
• Easy to read GUI for interpreting airflow sensor results
• Circuit design has been tested and includes firmware, GUI, quick start quide

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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.

TIDU372.PDF (172 K)

Reference design overview and verified performance test data

TIDU371.PDF (557 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDR689.PDF (123 K)

Detailed schematic diagram for design layout and components

TIDR690.PDF (104 K)

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

TIDR691.PDF (139 K)

Detailed overview of design layout for component placement

TIDR693.PDF (173 K)

Detailed overview of design layout for component placement

TIDR694.ZIP (292 K)

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

TIDC456.ZIP (1409 K)

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

TIDR692.PDF (611 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

General-purpose op amps

OPA2337Dual, 5.5-V, 3-MHz, RRO operational amplifier

Data sheet: PDF
MSP430 microcontrollers

MSP430G255316 MHz MCU with 16KB Flash, 512B SRAM, comparator, UART/SPI/I2C, timer

Data sheet: PDF

Start development


Technical documentation

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Type Title Date
* Design guide TIDA-00250 Overview May 30, 2014
Test report TIDA-00250 Test Results May 30, 2014

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