Post Ay6faXc2kjoO6Fu9pI by MisterHW@fosstodon.org
(DIR) More posts by MisterHW@fosstodon.org
(DIR) Post #AxVLSD1uCzSI0yEZ6m by natalie@nya.social
2025-08-24T19:33:10.602Z
1 likes, 0 repeats
i made a simple probe that lets me listen to light as sound, and recorded some interesting thingsheadphones recommended...
(DIR) Post #AxVOyD2c08zVBAVyhU by anchal@social.likeadragonmaid.dev
2025-08-24T20:12:18Z
1 likes, 0 repeats
@natalieNetwork light is purring :RosThis:
(DIR) Post #AxVXswyzB6izVwNyuu by nblr@chaos.social
2025-08-24T21:37:19Z
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@natalie @clonejo Did you know™: in the time of 10MBit/s ethernet there used to be certain switch designs that allowed passive sniffing of traffic through activity LEDs because they were lazily wired to the tx pair and the resolution just barely worked out.Edit: found the paper, it’s about serial links. I’m pretty sure there used to be ethernet stuff too, but maybe I misremember.https://arxiv.org/pdf/2307.07043
(DIR) Post #AxVXsy3HCdkcpXOvFA by natalie@nya.social
2025-08-24T21:52:25.161Z
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@nblr@chaos.social @clonejo@social.troll.academy yes! unfortunately i don't have any of them
(DIR) Post #AxY1nS581dnnAaTOW8 by Moss_the_TeXie@rheinneckar.social
2025-08-26T02:27:58Z
0 likes, 0 repeats
@natalie Could you please specify that probe? What kind of sensor did you use (photo diode?), how is it amplified (opamp or something more sophisticated)?Thanks!
(DIR) Post #AxY1nTFRgleImsJ9Em by natalie@nya.social
2025-08-26T02:36:59.455Z
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@Moss_the_TeXie@rheinneckar.social really simple, made from literal trash. powered by a usb power bank, output was connected directly to the line input of an old mp3 player with recording function
(DIR) Post #AxabldRanLdMUpKjIW by Moss_the_TeXie@rheinneckar.social
2025-08-27T08:12:23Z
1 likes, 0 repeats
@natalie That’s really ingenious. Nice!
(DIR) Post #Ay6faXc2kjoO6Fu9pI by MisterHW@fosstodon.org
2025-09-11T17:34:35Z
1 likes, 0 repeats
@natalie bonus points for everyone adding chip tunes to the status indicator LEDs of their next project
(DIR) Post #Ay6fdw2YO7nOjHvIIq by abbieoverflight@transfem.boywife.top
2025-09-11T13:32:57.735781Z
1 likes, 0 repeats
@natalie This reminds me of that thing where some researchers figured out they could recover (degraded versions of) whatever is playing in someone's headphones off of their laptop by watching how the power LED changes intensity :blobfox3c:
(DIR) Post #Ay6fgDPol5BVCGtMdk by 0@corteximplant.com
2025-09-11T13:07:13Z
1 likes, 0 repeats
@natalie oh your variety of different things in the video is really cool!I took one such device to a chaos communication congress but it was mainly LEDs (and a cursed escalator)https://youtu.be/BtFYSkJQMyw?si=FUlR8E7yuw1QEVbc
(DIR) Post #Ay7TRoiamSTSFo09TM by zuthal@floofy.tech
2025-09-11T14:15:11Z
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@natalie Two observations/questions:1) What makes the sodium streetlight make a full sine wave rather than a rectified sine wave?2) any idea what could be causing those overtones on the nightlight?
(DIR) Post #Ay7TRpya6UrG9gUR28 by natalie@nya.social
2025-09-12T05:01:41.611Z
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@zuthal@floofy.tech 1 i have no answer for. on 2 it's from the rgb led, it's one of those self-contained fading ones, the overtone will be the pwm frequency, overtone going away means the individual colors are all at either 0% or 100% duty cycle