Do-it-yourselfie, an Android Things photo booth

In this talk me and Roberto Orgiu present a project we have been working on: an Android Things-powered photo booth which uploads the pictures to a Google Photos album.
As presented at DevFest Gorky 2018.

Transcript

1. Do It Yourselfie An Android Things photo booth Daniele Bonaldo && Roberto Orgiu
2. Daniele Bonaldo @danybony_ danybony danielebonaldo.com
3. HELLO! I am Robertoooooooo I do things Android at The New York Times You can find me at @_tiwiz
4. The selfie booth Idea: The event attendees can take selfies using this device and the pictures are going to be viewed immediately and shared with other attendees.
5. 3 2 1
6. Trigger A NC (normally closed) button
7. NC button Normally Open (NO) Normally Closed (NC)
8. NC button
9. The camera Raspberry Pi Camera Module v2 Sony 8-Megapixel sensor
10. No live preview Not good enough frame rate with Android Things and Raspberry Pi
11. Two-way mirror
12. Two-way mirror
13. Status indication
14. Status indication Network error
15. Status indication Authentication error
16. Status indication Number of pictures to upload
19. Android SDK Play Services Android Studio Firebase
20. No launcher No system UI No Play Store
21. Displays are optional Alternative UI
22. Development kits Raspberry Pi 3 NXP i.MX7D
23. Hardware integration GPIO PWM I2C SPI UART I2S Low level peripheral I/O Button Temperature sensor Servo motor GPS and more... User-space Drivers Library
24. Google Photos Two options: • REST API • Java Library Short-lived upload token Permission to access albums and pictures Permission to only upload to albums created via the same app https://developers.google.com/photos/
25. Pictures upload schedule Using WorkManager https://developer.android.com/topic/libraries/architecture/workmanager/ Re-schedule the job after every captured image Job requirements: • connected to power • network connection
26. Device configuration Companion app for Google Sign-in and album creation Nearby for proximity communication https://developers.google.com/nearby/ From phone to Android Things Send Google Photos token + selected album details
27. Issues Ambient Light Power Network connection
28. Improvements Use the new Photos API library Screen as a “front-facing” flash Dedicated Real-time clock (RTC) circuit Connect with a DSLR using serial communication
29. User-space drivers library https://github.com/androidthings/contrib-drivers Android Things documentation https://developer.android.com/things/index.html Android Things's projects - hackster.io https://www.hackster.io/google/products/android-things More info Do It Yourselfie https://github.com/danybony/do-it-yourselfie
30. Find us at • @danybony_ • @_tiwiz