Flutter Festival London 2022 - End to end IoT with Dart and Flutter

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A walk through of a demo system that was built for Mobile World Congress 2022 showing how Dart can be used to read data from a biometric sensor and send it to a Flutter front end application using end to end encryption.

Software

© 2022 - The @ Company | atsign.dev
End to End IoT with Dart and Flutter
Flutter Festival London - March 2022

© 2022 - The @ Company | atsign.dev
A brief introduction
Engineer, The @ Company,
building a platform that puts people in
control of their data.
Co-host, Tech Debt Burndown Podcast
Cloud Editor, InfoQ
Blogger blog.thestateofme.com
Links to socials etc. at
chris.swanz.net

© 2022 - The @ Company | atsign.dev
Agenda
➔ Overview of Mobile World Congress Demo
➔ The Flutter front end
➔ A Dart device driver
➔ Connectivity, Security, Privacy
➔ Review

All the code is open source
https://github.com/atsign-foundation/mwc_demo

And Android
https://play.google.com/store/apps/details?id=com.atsign.hro2

And iOS
https://apps.apple.com/gb/app/hro2/id1610811005

MAX30100 sensor - heart rate and O2 saturation
https://datasheets.maximintegrated.com/en/ds/MAX30100.pdf

The programmer’s lament
“We do these things,
not because they are easy,
but because we thought they would be easy”

Newer sensor - better drivers?
https://shop.pimoroni.com/products/max30101-breakout-heart-rate-oximeter-smoke-sensor

C++ (and bits of Python) driver ported to Dart
https://pub.dev/packages/max30101

We stand on the shoulders of giants
https://pub.dev/packages/dart_periphery

C++ code is EXCEPTIONALLY well documented
https://morf.lv/implementing-pulse-oximeter-using-max30100

© 2022 - The @ Company | atsign.dev
Review
➔ Overview of Mobile World Congress Demo
➔ The Flutter front end
➔ A Dart device driver
➔ Connectivity, Security, Privacy

Contact
Chris Swan
chris@atsign.com
@cpswan

© 2022 : The @ Company | atsign.dev
Get started with the @platfrom
https://atsign.dev/
Join our community
https://github.com/atsign-foundation
@atsigncompany
23

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Flutter Festival London 2022 - End to end IoT with Dart and Flutter

2. © 2022 - The @ Company | atsign.dev A brief introduction Engineer, The @ Company, building a platform that puts people in control of their data. Co-host, Tech Debt Burndown Podcast Cloud Editor, InfoQ Blogger blog.thestateofme.com Links to socials etc. at chris.swanz.net

4. Overview of Mobile World Congress Demo

6. All the code is open source https://github.com/atsign-foundation/mwc_demo

7. Flutter Front End

8. Sign in (Windows Desktop)

9. Main screen (Windows Desktop)

10. And Android https://play.google.com/store/apps/details?id=com.atsign.hro2

11. And iOS https://apps.apple.com/gb/app/hro2/id1610811005

12. Dart Device Driver

13. MAX30100 sensor - heart rate and O2 saturation https://datasheets.maximintegrated.com/en/ds/MAX30100.pdf

14. The programmer’s lament “We do these things, not because they are easy, but because we thought they would be easy”

15. Newer sensor - better drivers? https://shop.pimoroni.com/products/max30101-breakout-heart-rate-oximeter-smoke-sensor

16. C++ (and bits of Python) driver ported to Dart https://pub.dev/packages/max30101

17. We stand on the shoulders of giants https://pub.dev/packages/dart_periphery

18. C++ code is EXCEPTIONALLY well documented https://morf.lv/implementing-pulse-oximeter-using-max30100

19. Connectivity, Security, Privacy

20. End to end encrypted

22. Contact Chris Swan chris@atsign.com @cpswan

24. Questions? 24

Flutter Festival London 2022 - End to end IoT with Dart and Flutter

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