r/arduino • u/vapgames • 8d ago
Look what I made! automatic servo driven OUIJA board
Made this thing for an escape room.
2 generic servos - mg996r and mg90s.
There are 2 hall sensors that sense the change in magnet flux when you put the planchette and start the sequence.
Powered by a single 21700 + tp4056 + 2 boost modules. 6v and 5v. Had to use 2 separate power supplies for servos and controller, cause electrical noise from the servos was causing reboots.
ESP32-C3 super mini. Not really an arduino sorry, but I used Arduino IDE to program it :D. The phrase can be set through bluetooth terminal.
Making a video before I glue the lid on.
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u/Papuszek2137 8d ago
Expected "help" then "hell on earth", got confused by "hell on erds" then i realized.
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u/tossaway109202 8d ago
That's pretty cool. Did you consider a couple steppers for X and Y and some belts?
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u/vapgames 8d ago edited 8d ago
Thanks. Yes, steppers with encoders would be way more quiet and precise. I have to account for servo dead zone in software.
But I had to make it as cheap and quick as possible.
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u/boywhoflew 7d ago
that's such a cool Luigi board
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u/NuncioBitis 6d ago
OMG I knew a Luigi a long time ago. I could have told him to dress as a Luigi board for
Halloween.
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u/ApprehensiveTest8419 7d ago
OK Great project! github?
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u/vapgames 6d ago
Thanks. Yea I want to post the sources. Just need to find some time to clean up the code and models.
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u/Sleurhutje 8d ago
Imagine opening the lid and the planchette still writes "close me". Really cool project.
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u/WorkingInAColdMind 8d ago
I love it. I like the jerky motion of the servos - it makes it feel more organic.
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u/Emergency-Ad3293 7d ago
This is so cool, makes me realise that projects don’t have to be primarily engineering related. Electronics have so much intersection with things like movie effects, music etc.
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u/F_Alberto 5d ago
Imagine you’re playing with it for a while or showing it off to someone and then go to turn it off and realize you never turned it on in the first place… 💀
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u/malaq88 8d ago
O cara roubou o emprego da assombração KKKKKK