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Reverse-engineering my speakers' API to get reasonable volume control

(jamesbvaughan.com)
287 points jamesbvaughan | 5 comments | 25 Jul 24 15:11 UTC | HN request time: 0.848s | source
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laurencei ◴[27 Jul 24 02:03 UTC] No.41083968[source]▶
Hey OP - if your thinking about a smart knob with haptic feedback etc - check this open source project out that you can build yourself - its amazing:

https://github.com/scottbez1/smartknob

Video demo here: https://www.youtube.com/watch?v=ip641WmY4pA&t=1s

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1. IshKebab ◴[27 Jul 24 08:14 UTC] No.41085179[source]▶
"you can build yourself"

Technically yes, but that is a serious project.

replies(1): >>41085384 #
2. laurencei ◴[27 Jul 24 09:12 UTC] No.41085384[source]▶
Yeah - I actually asked on the Discord if anyone was selling them pre-made - I would buy some if available.

I dont have time/tools etc to do this.

replies(2): >>41085918 #>>41103121 #
3. criddell ◴[27 Jul 24 11:42 UTC] No.41085918[source]▶
If it’s $200 in parts then a premade item would be at least $400 and probably $500. There probably isn’t much of a market at those prices.

The bill of materials needs to come way down to sell it for much less than that. Buying the parts in hobbyist-level bulk (100 pcs) probably would only shave $100 from the final price.

replies(1): >>41088336 #
4. IshKebab ◴[27 Jul 24 18:14 UTC] No.41088336{3}[source]▶
Easily $600. Especially considering how niche this is.
5. baldgeek ◴[29 Jul 24 19:43 UTC] No.41103121[source]▶
https://www.lilygo.cc/products/t-encoder-plus looks like the HW part is taken care of, and they have some sample code on github