These #upgraded #casio #watches are so nice: https://n-o-d-e.shop/collections/frontpa.. This plus a #heartrate #sensor would be very cool.
This is a very cool #mechanical #colour #picker https://hackaday.com/2022/09/21/mechanic.. As one #comment said there, add a #colour #sensor and this would be exceptionally cool.
Interesting use of a #can #bus for 3D #printer #sensor / #actuator #communication https://hackaday.com/2021/11/03/simplify.. Still, it's quite over the top. There really isn't *that* much noise on the communication lines!