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Abhinav Jain edited this page Apr 2, 2020 · 8 revisions

Introduction

Design Concept

Design Concept

Pressure sensor for COVID-19 ventilators

This repository contains all the necessary files for making an extremely low-cost pressure sensor design for ventilators. The sensor module is based on Bosch's BM280 pressure sensor. This sensor is commonly used in our smartphones and should be readily available within a market. Information for other sensors will be added soon.

The project is work-in-progress and the following objectives are expected to be achieved by Apr 5th, 2020.

  1. Design concept: done
  2. Part availability and stock info: done (see the section below)
  3. Datasheets and Technical info: done
  4. Circuit diagram and PCB files: pending
  5. CAD files for 3D printing: pending
  6. Assembly instructions: pending
  7. dFMEA risk analysis for use in medical devices: pending

Stock availability of the sensor: As of now (Apr 2, 2020), close to 175 thousand pcs of BMP280 barometric pressure sensors are available in stock. Being a part which is frequently used in cellphones and health monitoring products, a lot more should be readily available at offline stores and warehouses.

Consolidated source list 1: https://octopart.com/bmp280-bosch+tools-26451306#PriceAndStock Consolidated source list 2: https://octopart.com/bmp280-bosch+sensortec-51879412?r=sp# Bosch Sensortec BMP280 sensor driver: https://github.com/BoschSensortec/BMP280_driver

Please feel free to fork or join the project.

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