A few additional things I noticed during the last hours playing with my new toy, to have it all in one thread:
If you switch off the microscope by just disconnecting the power then chromium complains at the next start that you didn’t “shut down correctly”. Of course that’s true but who cares?
To have it stop complaining change one parameter in /etc/xdg/autostart/chromium.desktop:
old:
Exec=chromium --disable-crash-reporter --start-fullscreen http://localhost:5000
new:
Exec=chromium --disable-crash-reporter --start-fullscreen --app=http://localhost:5000
No more grumping…
The downside of this hack is that you don’t have chromium menu items visible in case you eventually leave the fullscreen mode. So you would have to reboot to enter the fullscreen mode again. But this normally shouldn’t occur, especially if you enable the following tip (then you can use F11 instead).
If you use onboard as virtual keyboard you can set it to be autostarted as well. Use this command:
sudo cp /usr/share/applications/onboard.desktop /etc/xdg/autostart/onboard.desktop
To have it always available: in
Preferences → General add a checkmark at “Show floating icon when Onboard is hidden”
and to show it above the fullscreen window of chromium: in
Preferences → Window add a checkmark at “Force window to top”
If you move the floating icon to the right side of the screen it doesn’t get in the way of the camera stream and the keyboard is available at your fingertip.
Meanwhile I also received the new illumination. It’s a USB powered gooseneck light with 6 white COB LEDs which can be adjusted in 3 brightness levels. The best thing is it’s only consuming 300 mW!
If you closely compare the screen and the sample below you may notice that the video stream is no longer upside-down.
Thanks to @j.stirling’s fix there’s no more confusion when placing an object.