Skip to content

Home

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

Pressure sensor for COVID-19 ventilators

This wiki and the repository contains all the necessary files for making an extremely low-cost pressure sensor for a custom ventilator design. The sensor module is based on Bosch's BMP280 pressure sensor, however, the design can be easily adapted for similar barometric pressure sensors.

Disclaimer: The concept and the design files made available in this repository are not verified and validated for both safety and performance. The author(s)

Motivation

It is evident that the only option we have to reduce COVID-19 mortality is to have as manybuild as many ventilators as possible.

This sensor is commonly used in our smartphones and should be readily available within a market. Information for other sensors will be added soon.

Introduction

Why this

Distress call for the pressure sensors

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.

Clone this wiki locally