https://peertube.scd31.com/about/instancehttps://peertube.scd31.com/videos/localhttps://peertube.scd31.com/w/i3sicrWSkMBtxJmLW9mt29https://peertube.scd31.com/lazy-static/thumbnails/3fbe5efa-bbda-4ef8-b542-4774acce3813.jpgSept 9 Balloon Launch (Streamed Live over 70 cm ham radio)This video was sent live from a balloon to the ground at about 300kbps actual throughput. A 1W transmitter was used and the maximum distance was 50km. Eb/n0 was over 20dB for most of the video, implying we could push it much further. The video is 640x480@12FPS. The balloon bursts at 1:13:50.https://peertube.scd31.com/videos/embed/8a030cf1-58af-4b01-a467-895c3890af6ehttps://peertube.scd31.com/w/7CQCYB4BmJzngoZTiMociYhttps://peertube.scd31.com/lazy-static/thumbnails/52c9ef88-9bed-4d7e-bcc7-af76bef09842.jpgNov 4 Balloon Launch (Streamed Live over 70 cm ham radio)This video was sent live from a balloon to the ground at about 300kbps actual throughput. A 1W transmitter was used and the maximum distance was 140km. The signal dropped out at under 1.3 degrees angle of attack. A pre-amp was brought, but wasn't needed. The system should be capable of much longer distances as long as the angle of attack remains above the horizon.https://peertube.scd31.com/videos/embed/35bb94e4-ac7d-497d-b89d-b2e0c0c29cbehttps://peertube.scd31.com/w/xkU4Wsr7MY4oEfv9RPSxrHhttps://peertube.scd31.com/lazy-static/thumbnails/e86bb5b8-e4ba-48db-aae8-178b50933872.jpgExperimenting with a TV transmitterTransmitting at UHF channel 49 into a dummy load. Bought the modulator and amplifier at a swap meet for $30 USDhttps://peertube.scd31.com/videos/embed/fdd284a0-ec6d-4f82-8ee1-409eb1471f0fhttps://peertube.scd31.com/w/dUJS1qjX3beQgLW9nSUbU2https://peertube.scd31.com/lazy-static/thumbnails/4941353c-82f2-4324-ab88-41a756bff48b.jpgBad Apple on the RP2040Learning exercise - first time writing code for the RP2040. Written in Rust in about 45 minutes. Framerate is limited primarily by the speed of the display, as well as the amount of available flash memory.https://peertube.scd31.com/videos/embed/688ac135-ac32-4cfe-9fe1-b1bdf72af591https://peertube.scd31.com/w/7s2WbdUBYWy1b56AafhPWWhttps://peertube.scd31.com/lazy-static/thumbnails/3dfdbd7b-5636-4a2f-a108-bb6865c6e3e2.jpgCATS companion - touchpad testTesting as much of the hardware as possible before I order the next revisionhttps://peertube.scd31.com/videos/embed/34395ca5-25a2-4115-b8c6-eee0a4f6430ehttps://peertube.scd31.com/w/7Gk2j6Kp36od83fRjRT4gKhttps://peertube.scd31.com/lazy-static/thumbnails/d9474f7d-286e-47dc-9edb-dccef398c002.jpgCATS CompanionHere's the CATS Companion in its case. It still needs a hole for the antenna connector. The display got damaged at some point, so I can't talk to it, other than to control its backlight.https://peertube.scd31.com/videos/embed/36384e4d-4d2d-4672-befd-3148b09a1385https://peertube.scd31.com/w/ayRq7J1r9z4VgUp1biXdVahttps://peertube.scd31.com/lazy-static/thumbnails/4908faa3-2488-4597-aeff-5f15707ecc8b.jpg2024 Solar Eclipse Balloon Launch - Video OnlyRaw video from the payload as received on the ground. Streamed over 70cm ham radio. More information: https://www.eclipseplus.cahttps://peertube.scd31.com/videos/embed/4d78808c-7e21-4c7a-b887-8b4c2911e623https://peertube.scd31.com/w/cPz33NYpDj7PLfKwbBv1Cvhttps://peertube.scd31.com/lazy-static/thumbnails/6b0c87a6-10b7-4e6e-8804-2aa50e97edd5.jpg2024 Solar Eclipse Balloon Launch - Full Telemetry FeedThe full feed that was broadcast live. More information: https://www.eclipseplus.cahttps://peertube.scd31.com/videos/embed/5fb8d758-184b-464e-9680-ee82a10c113dhttps://peertube.scd31.com/w/7upr41mkovDfZfhdmvwzsGhttps://peertube.scd31.com/lazy-static/thumbnails/ed56a3e6-eb58-4e03-a7ac-9aef80ded67d.jpgDriving an ignition coil on the benchI replaced my ignition coil (it was causing my car to misfire). It still kind of works though so I got it running on the bench. My house smells like ozone nowhttps://peertube.scd31.com/videos/embed/348e1913-d203-4725-818a-b77b3e8a4eb0https://peertube.scd31.com/w/wgmjxxu5MvGrE2F6sJoQxuhttps://peertube.scd31.com/lazy-static/thumbnails/0e371486-57ea-48b3-b765-4051325cebab.jpghe screams, for he knows he is no longer in a carignition coils can feel painhttps://peertube.scd31.com/videos/embed/f516d6bd-1969-40f6-aecb-64ad97b87df2https://peertube.scd31.com/w/1Qe8VJg34GAWyZNtuYu8DBhttps://peertube.scd31.com/lazy-static/thumbnails/fbc5f210-e2dd-4767-b95c-db65619e1fea.jpgCalling CQ on every frequencydo NOT tell ISEDhttps://peertube.scd31.com/videos/embed/06bbcbf5-8664-4cb4-be16-f9f31e1686a1https://peertube.scd31.com/w/jNqdET4WteJLW917b8heUUhttps://peertube.scd31.com/lazy-static/thumbnails/10e9fd6a-fd1d-4ee1-ad07-db8cae8c762a.jpgBad Apple Ignition CoilBad Apple Ignition Coilhttps://peertube.scd31.com/videos/embed/983fa26b-7c4f-4fd7-86f4-d9c416714680https://peertube.scd31.com/w/nFJuwbPBEqJDfKhZWLKiA5https://peertube.scd31.com/lazy-static/thumbnails/edbea82b-1744-4b76-8383-558fd0e27487.jpgdarude coilstormdarude coilstormhttps://peertube.scd31.com/videos/embed/af9c1af8-38a3-4223-a1f7-a4c52535a194https://peertube.scd31.com/w/cr818qJUJHMgMqSaHCQfBYhttps://peertube.scd31.com/lazy-static/thumbnails/591c198b-8abc-464e-a260-df35a4b6331f.jpgDarude Coilstorm V2Now with 4 voiceshttps://peertube.scd31.com/videos/embed/5c966f4d-53bc-4522-89ee-d24f22bf37behttps://peertube.scd31.com/w/gsW4GPMDQCLjdir5b65b22https://peertube.scd31.com/lazy-static/thumbnails/8e2bb1f1-e1ba-4a9e-828a-4557738accc7.jpgRunning my M68K SBCMessing around with my M68K SBC today. Has lots of bugs and I haven't touched it in a few years. Here I have it running in single-step mode with the steps coming from a signal generator. The speed varies throughout the video but it stays between 10Hz and 1000Hz or so. This program just writes some ASCII art to the serial port, but it also generates some pretty blinkenlights! The left lights show the value on the data bus and the right lights show the value on the address bus. Schematics: https://gitlab.scd31.com/stephen/68000-sbc Source code for the program: https://gitlab.scd31.com/stephen/68000-sbc-softwarehttps://peertube.scd31.com/videos/embed/7d3bbc67-b050-44a4-9006-e2d7dfe2f653https://peertube.scd31.com/w/jh7pTpe1kX2wrbbgcgGpighttps://peertube.scd31.com/lazy-static/thumbnails/b9cacd6b-193b-419d-aa81-870ced6b5d38.jpgTaylorator DemoQuick demo of the Taylorator. Physical setup: LimeSDR connected to one side of my laptop for transmitting, and an RTL-SDR on the other side for receiving. Using SDR++ to view the bands on the RX side. Source code: https://gitlab.scd31.com/stephen/tayloratorhttps://peertube.scd31.com/videos/embed/940458fe-5c25-4f0f-8452-4f356b7004f5https://peertube.scd31.com/w/7rFTUHmj5rHjSUsnkag1pFhttps://peertube.scd31.com/lazy-static/thumbnails/252306bd-42ec-4825-97a9-577e6eb1cbdd.jpgDying underground transformerVery loud electrical buzzing in sync with my lights flickering, although it stopped right when I hit record (and has since started again)https://peertube.scd31.com/videos/embed/342d032a-598f-4664-8769-f8341d783a65https://peertube.scd31.com/w/v6LGZ8te2R6QqdtxhWp9NUhttps://peertube.scd31.com/lazy-static/thumbnails/6c4e5f1c-edb2-4142-abfb-4642565f1f68.jpgSlow HTTP server demoMy resume says I have 15 minutes experience as an HTTP serverhttps://peertube.scd31.com/videos/embed/eba74a9b-6b53-4cdf-a2f5-e414cba059f8https://peertube.scd31.com/w/8882FFZ2qgLJ8B2khbTgX9https://peertube.scd31.com/lazy-static/thumbnails/3eeaf34a-9369-45e0-837b-b1da5cb1b1e2.jpgmeow meow meowmeow meow meowhttps://peertube.scd31.com/videos/embed/39ae8241-5727-4ca0-99e5-86f567b61672https://peertube.scd31.com/w/oVk4efhziaGgiCnJPKe9eshttps://peertube.scd31.com/lazy-static/thumbnails/42c8728d-5b6f-407f-a8fc-fac8a7439775.jpgSBC works!!I got the CPLD programmed (: that was way harder than I expectedhttps://peertube.scd31.com/videos/embed/b99b36bb-812a-4a69-b5f6-56baaff05744https://peertube.scd31.com/w/vDgbWkVhQVYNCSqMoytCXhhttps://peertube.scd31.com/lazy-static/thumbnails/bee46913-9245-4298-80ce-f1afb467b9ac.jpgFirst program on the new m68k boardInterrupts are screwed up and need a bit of rework, so I've implemented this with a busy loophttps://peertube.scd31.com/videos/embed/f00ce6a2-8602-4a4c-aee6-baf0c5dfdccehttps://peertube.scd31.com/w/7rFN3PCPkn28CeapQ4qUmohttps://peertube.scd31.com/lazy-static/thumbnails/db4292fc-8574-42d5-9344-ed90562e6cb8.jpgJulia set lookaroundUsing [lookaround](https://git.sr.ht/~slushee/lookaround) to look around the Julia set.https://peertube.scd31.com/videos/embed/342cf339-a13d-4505-b283-ff3a5397901ehttps://peertube.scd31.com/w/sC84Ser9rS7HJi8HjJUxZGhttps://peertube.scd31.com/lazy-static/thumbnails/f12dfcad-73d2-4b51-9197-2d2054b0d8d2.jpgPutting my phone through the xray machine at the airport while it's recording this videoX-rays are able to activate the pixels in the camera, but because they aren't affected by the optics, you just get a bunch of noise instead of a coherent image. Peak of the radiation is at 4:16 or so. I suspect that's when it actually passed through the beam.https://peertube.scd31.com/videos/embed/d798bc61-68fc-42cf-b670-b97545ff912ehttps://peertube.scd31.com/w/4P7f8kGvvN3mH43nbeRaRXhttps://peertube.scd31.com/lazy-static/thumbnails/4ee65189-86f7-46d9-a0aa-c58da6344244.jpgLinux kernel -> USB -> DIY VGA driver -> arcade cabinetThe colours are all wrong and the draw rate is terrible. But it works!!!! I can iterate from here :Dhttps://peertube.scd31.com/videos/embed/1edf388c-fb67-4e71-bc09-7a298d428a8dhttps://peertube.scd31.com/w/bTBKv8K6DpZ8iyRh1V4Qxjhttps://peertube.scd31.com/lazy-static/thumbnails/4460a7e4-4dac-4689-a777-9de733a6be47.jpgMaromaro - Moonligthing (Electric & Synth Bass Cover) (Practice run)This is a practice run of me playing the Bass (both electric and synth) part of the song "Moonlighting" by Maromaro. It does have some timing and consistency mistakes on the electric bass, and I messed up the synth bass part a bit. **Gear used:** - Electric bass: Harley Benton JB-62CC - Monosynth: Wasp Deluxe (Behringer recreation, cry about it) - Mixer: [Spiracle](https://slushee.dev/projects/spiracle/) - Audio interface: Arturia MiniFuse 1 - Midi controller: Arturia KeyLab Essential 61 mk3 **Support the original artist:** - Maromaro on Patreon: https://www.patreon.com/maromaro1337 - The song on Bandcamp: https://maromaro.bandcamp.com/track/moonlighting https://peertube.scd31.com/videos/embed/583059c1-e191-4b05-95a6-4c9da5fa3520https://peertube.scd31.com/w/oS9b4ap9WMm64dfFvU2csRhttps://peertube.scd31.com/lazy-static/thumbnails/613647a5-8d44-44b2-a53a-8505cca87739.jpgDIY hair electrolysis machine demoQuick walkthrough of the hair electrolysis machine I built. Simulating my body with a resistor (although I have used it on my body and can confirm it works) The software is pretty much done, I think, but there are some hardware issues I need to fix in the next revision.https://peertube.scd31.com/videos/embed/b92946a9-c500-4d06-be88-cddeeba74fe9https://peertube.scd31.com/c/root_channel/videoshttps://peertube.scd31.com/c/scd31/videoshttps://peertube.scd31.com/c/slushee_channel/videoshttps://peertube.scd31.com/a/peertube/video-channelshttps://peertube.scd31.com/a/root/video-channelshttps://peertube.scd31.com/a/n3tcat/video-channelshttps://peertube.scd31.com/a/slushee/video-channels