HealthyPi v4 - Unplugged

A wireless, wearable, open source vital signs monitor powered by ESP32

Apr 03, 2020

Project update 9 of 13

HealthyPi v4 & COVID-19

by Ashwin K Whitchurch

First of all, we wish to apologize for the long delay in shipping the HealthyPi v4 kits to our latest set of backers. As you may or may not know, we are located in India, and India is currently in the middle of a 21-day "full lockdown" because of the COVID-19 outbreak. As a result, India has taken the unprecedented step of suspending nearly all incoming and outgoing international flights until April 15th. Most Indian courier services have also come to a complete standstill. We have a bunch of HealthyPi v4 kits sitting in our office, but no way to get them out. We will be shipping these as soon as DHL gets things moving. That said, the entire ProtoCentral team is working from home, and we would happy to answer any questions you might have!

New Apps on the Way

We will soon have our first iOS app! We have begun working on a new set of mobile apps for HealthyPi v4, using the awesome new Flutter cross-platform framework, and we have found this framework to be an amazingly efficient way to create fast mobile apps that seem to work almost the same on iOS and Android. This has also made it far easier to collaborate on open-source development of new apps. We are ironing out the final wrinkles at the moment and expect to launch the new apps at some point in the next few weeks.

Updated Documentation

One upside of our team’s home confinement is that we’ve updated and polished the documentation at It is now clearer and more succinct. We are working on it continuously and would love to hear your input.

Calling for COVID-19 Management Solutions Involving HealthyPi v4

After the recent COVID-19 outbreak, we have been contacted by healthcare professionals from Europe and the US looking to learn more about how they might use HealthyPi v4 in their work, be it for ventilators or for the basic monitoring of vital signs. One possible application that we’ve been discussing relates to respiration monitoring using Impedance Pneumography and its potential to identify subtle changes in respiration before larger issues can be detected due to falling blood oxygen levels. This is just one idea, and there are likely others out there.

If you have any ideas as to how HealthyPi v4 might be used, even in a small way that makes even the slightest difference in the handling of the COVID-19 epidemic, we would love to hear about it, and we would be happy to support the effort however we can. Please write to us at

Stay safe during this crisis, and do what you can to make a difference!

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