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I'm surprised the joycon is so relatively accurate. It's just the gyrometer doing this? Wow.

There is some smoothing going on, but yes, it is really accurate. What I am using for this is gyroscope + gravity from the accelerometer. They are fused in to yaw and pitch values which we use for drawing the path.

I feel these projects are escalating. Every time I think it can’t get any weirder, I somehow can make it even crazier. This is my actual heartbeat ❤️ I’ve connected a BLE heartrate monitor and triggering a CSS animation on every beat.

Don’t believe it? This is the actual code that gets rendered, sampled and send to the laser projector.

@tomayac.com I may have found one or two bugs in your joy-con-webhid library. Will file a bug report :-)

Thomas Steiner

@tomayac.com

Amazing! There's also somewhere a magic number that I have not figured out how to replace with proper logic yet.

The main issue I had was that it auto reconnects, but that we're not allowed to send the report to enable the gyro until a user gesture. That leaves the library in a state where it thinks it has gyro, but it doesn't.

Thomas Steiner

@tomayac.com

Ah. Good catch. If you want to review the whole thing, you likely find a bunch of stuff that needs improvement. There might also be some hardware generation differences, some bugs did not reproduce on my two sets of controllers.

daniel fosco

@handle.invalid

this is rad!!! any plans to open source it?