Anything you get aware that goes fast-to-slow in a smooth gradient is the idea.
I tried sound (beats) on a headphone with some tracks, then build a tiny app to show pixels on the screen (blink) and then settled on a LED on a prototyping board type of device (ESP32) as a quick project and that worked.
I only improved by adding the heart sensor months later, now I don't think about it much, Now even If I'm not aware of, every time I turn the iMac it powers the device via the USB and so it starts anyway at 150bpm when the heart sensor is not responding or not detecting anything. After an hour it gets to 60 and the light fades out....
I'm not aware when it goes off, so I guess it is working ; )
Few people here posted code, ideas and I added the device pic I used (similar) and the sensors... you can buil one with almost anything and try!
In principle yes,
Anything you get aware that goes fast-to-slow in a smooth gradient is the idea.
I tried sound (beats) on a headphone with some tracks, then build a tiny app to show pixels on the screen (blink) and then settled on a LED on a prototyping board type of device (ESP32) as a quick project and that worked.
I only improved by adding the heart sensor months later, now I don't think about it much, Now even If I'm not aware of, every time I turn the iMac it powers the device via the USB and so it starts anyway at 150bpm when the heart sensor is not responding or not detecting anything. After an hour it gets to 60 and the light fades out....
I'm not aware when it goes off, so I guess it is working ; )
Few people here posted code, ideas and I added the device pic I used (similar) and the sensors... you can buil one with almost anything and try!
Good luck!