# Low-Power Flowmeter with STM32

Canonical URL: https://abedini.me/en/projects/view/?id=flowmeter-ultrasonic-lowpower-stm32
Language: en
Type: Project
Published: 2026-07-02
Topics: Flowmeter, STM32, EMC, IEC 61000, Embedded C, EMC design, Sensor interface

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## Summary
A flow measurement device prepared for EMC-oriented development, including hardware and firmware decisions for IEC 61000 test areas such as surge, burst, ESD, and RF immunity.
## Problem
The first phase had to move the device toward a testable industrial flowmeter while reducing risk around EMC compliance and field reliability.
## Approach
I refined the hardware protection strategy, firmware behavior, sensing flow, and test-oriented design details before standards validation.
## Result
The project reached a stronger prototype baseline with clearer EMC preparation and a more reliable path toward certification tests.
## Body
Overview

This project focused on a practical flowmeter prototype and the early design decisions needed before formal IEC 61000 testing.

   Implementation

Hardware protection, sensing behavior, firmware timing, and layout considerations were reviewed together so the device could better tolerate surge, burst, ESD, and RF stress.

   Outcome

The first phase produced a more test-ready platform and reduced uncertainty before moving into formal validation.