LogbookBrain

What the official app costs

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1 min read

The maker provides a desktop app to drive the robot from a computer: 3D view, live camera, volumes, app store, updates. I installed it, tried it, then measured what it costs the robot while my own program runs.

Chart: robot processor load, 7.0 to 7.5 with the app open, 2.4 four minutes after closing it.

The measurements

Robot processor load (4 cores), read on board:

No. Situation Load Robot software Audio My program
1 App open, camera shown 7.0 to 7.5 208% 75% 33%, 150 frames a minute instead of 180
2 Four minutes after closing it 2.4 112% 21% 53%

A load of 7 on 4 cores means tasks are queuing. The app costs the robot software about one core, and the audio about half a core. And my program suffers: it sees fewer frames.

The rule

The official app stays installed, closed by default. I open it for an update or a setting, then close it. When my program is working, it is not open.

Worth knowing if you use it

It is a good tool to discover the robot and for updates. But its live camera thumbnail is not free: if your app needs the processor, close it. And it sends anonymous usage statistics, a setting you can switch off.

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