[HN Gopher] SmartKnob - Haptic input knob with software-defined ... ___________________________________________________________________ SmartKnob - Haptic input knob with software-defined endstops and virtual detents Author : e3a8 Score : 47 points Date : 2023-09-09 18:30 UTC (4 hours ago) (HTM) web link (github.com) (TXT) w3m dump (github.com) | heliostatic wrote: | This is great! I've been thinking about building something | similar for sleep training with my toddler--need something that | works in a dark room by feel and has variable intervals. Love it. | seabass-labrax wrote: | I absolutely love that this is open source hardware; there have | been multiple circuits available on the web for this kind of | peripheral, but nothing even approaching the level of polish that | this has. | | If the designer happens to be here, I have a question regarding | the circuit. Is there any protection against voltage produced by | a user's rotation of the knob? The TMC6300 IC that the schematic | shows is directly connected to the BDCM without any intermediate | circuitry, but the only 'protections' listed in its datasheet are | related to failures related to the motor being used as a motor, | not as a generator. | riffic wrote: | there was a microsoft surface dial, not sure if that ever took | off or not. I thought there was another product that had this | form factor | croes wrote: | I definitely need a use case for that | _Microft wrote: | Past submission from 2022 with a dozen comments: | | https://news.ycombinator.com/item?id=30646371 ___________________________________________________________________ (page generated 2023-09-09 23:00 UTC)