Tag: covid-19

• #M5Stack: Widgets on your Smartphone help you to stay safe from #COVID-19

  Cloud Platforms, M5Stack | 2 min | 7239

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  m5stack

  air-quality

  covid-19

  widgets

  co2

  coronavirus

  This is the last follow-up of the tutorials:

  • M5Stack: Fresh air checker helps you to stay safe from #COVID-19 and,
  • Nginx: Docker, Flask and Let's Encrypt (SSL),

  in which I explained how to build a CO2 measuring device using a M5Stack and an SG30 sensor, send the data to GCP, and offer it using HTTPS.

  Fig. 1: CO2 reporting widgets on Android and iOS.

  These sensors can help to prevent Covid-19 spread in a room. If you want to implement the complete pipeline, check out the links above. This tutorial connects the data to your Android or iOS phone to see that in a Widget (see Fig. ...

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• #Nginx: Docker, Flask and Let's Encrypt (SSL)

  Cloud Platforms | 5 min | 12505

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  docker

  nginx

  covid-19

  flask

  let's encrypt

  ssl

  reverse proxy

  certificate

  This tutorial is a follow-up of M5Stack: Fresh air checker helps you to stay safe from #COVID-19, in which I explained how to build a CO2 measuring device using M5Stacks and SG30 sensors. These sensors can help to prevent Covid-19 spread in a room. The collected measurements were sent to the Google Cloud Platform and a microservice offered them on a Website or a RestAPI using HTTP. This tutorial adds an Nginx microservice to offer the Website and RestAPI over HTTPS.

  Let's start with some explanation about how HTTPS works: The encryption and security functionalities for HTTP are implemented thr...

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• #M5Stack: Fresh air checker can help you to stay safe from #COVID-19

  Cloud Platforms, M5Stack, MicroPython | 12 min | 224096

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  micropython

  esp32

  m5stack

  air-quality

  m5stack atom

  covid-19

  coronavirus

  microservices application

  Winter is coming and the air-quality inside a closed room could be an index used to estimate the amount of aerosols in it, and hence the risk of Covid-19 infection. In other words, a system of CO2 traffic lights could help to spot potential corona-aerosols!

  Where there are many people in a room, there is a lot of exhalation (approx. eight liters of air per minute per nose). This air contains CO2 (carbon dioxide). Long before Covid-19, in Germany, the German Environment Agenc...

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