Rue Mohr

Electronics, programming and mechanics. technically robotics, but I been off track a while :D

website: http://ruemohr.org/
CVS: https://github.com/ruenahcmohr
3d: https://www.thingiverse.com/rue_mohr/designs
3d: https://www.printables.com/@Rue_Mohr_489999/models
Sanity: 🟥🟥☐☐☐☐☐☐☐☐☐ ⚠️3%
videos: https://www.youtube.com/user/ruenahcmohr/videos

Public Key

npub1pa689ung2mjw49nq8tf9nq28dyy3mfjevx4y3l0yek9rlsn73uns6w2xyd

NIP-05 Address

ruenahcmohr_at_infosec.exchange@momostr.pink

Profile Code

nprofile1qqsq7arj7f59de82jesr45jes9rkjzga5evkr2jglhjvmz3lcflg7fcpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsct7a3v

Publishing to

relay.snort.social

relay.damus.io

nos.lol

Author Public Key

npub1pa689ung2mjw49nq8tf9nq28dyy3mfjevx4y3l0yek9rlsn73uns6w2xyd

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Last Notes

2026-03-17 07:54:11 UTC

I would like to point out something very serious. Years ago I developed a technique for shifting serial data into a 74hc595 chain without use of a microcontroller. I have not been able to help but notice that people have been using raspberry pi's instead of my simple circuit.
For the same reason you DONT actually need 32G of ram to run a web browser, you don't need to use a Pi to convert serial data to parallel. I mean cmon, Its using a 555 as a BUFFER. a BUFFER!
https://github.com/ruenahcmohr/serial-595-9600
Please conserve the technology people.
https://media.infosec.exchange/infosec.exchange/media_attachments/files/116/243/432/457/314/668/original/03888de8ff0f611e.jpg

2026-03-10 00:20:20 UTC

Hi, my name is Rue,
You may know me from places like the internet, the world wide web, or the information superhighway.
I am determined to get 52 robots going this year, 1/week. I'm about to tell you about this weeks robot.
https://media.infosec.exchange/infosec.exchange/media_attachments/files/116/202/013/761/860/394/original/4d78ea7585de9b74.jpg
https://media.infosec.exchange/infosec.exchange/media_attachments/files/116/202/013/762/743/860/original/04531a187d712246.jpg

2026-03-07 23:38:40 UTC

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You all know that 82inch monitor you just threw out yesterday when you bought the 83" monitor that had a contrast ratio that was 0.05% better?
Well congratulations, you just killed a dolphin.

2026-02-18 00:18:28 UTC

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640k is all....
mmm well, maybe not.

2026-02-18 00:07:15 UTC

If you software wasn't so bloated, you would only need 1/4 of the ram you want.

2026-02-15 09:28:38 UTC

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Microsoft will allow you to embed a virus in any of their formats, use this to pull data from the web.
:D

2026-02-02 21:45:47 UTC

OMG, this thing has been buried under boxes for years, and thru all the power outages, it managed to stay up. I honestly didn't think ANY version of windows could do this. This laptop...
https://media.infosec.exchange/infosec.exchange/media_attachments/files/116/003/224/691/753/146/original/0c7db0fdb019e318.jpg

2026-02-02 05:19:01 UTC

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"I especially appreciate how easy these batteries are to mount, just a single screw into the threaded PCB insert, its so much more compact and easy to change"
https://media.infosec.exchange/infosec.exchange/media_attachments/files/115/999/337/699/330/617/original/24d7e45fd654341d.jpg

2026-01-19 05:28:39 UTC

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yes, they modified it slightly for injection molding, the one I printed had all sorts of issues, but honestly, after assembling this I dont think it was that bad...

2026-01-19 04:52:09 UTC

"My foot? oh, yea it falls off like that all the time"
I finished assembling this model I paid too much for from china. the injection moldings were awful.
https://media.infosec.exchange/infosec.exchange/media_attachments/files/115/919/963/456/145/678/original/7bb5edaa7e59ddcd.jpg

2026-01-09 14:31:53 UTC

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Maybe its not a matter of someone holding on to them, but that nobody is throwing them away.
;]

2026-01-09 14:23:01 UTC

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ok, so who made those strings?
was it
#[error(

2026-01-08 14:13:46 UTC

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so... the source problem of the leak isn't fixed?

2025-11-24 21:06:11 UTC

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what, no, E=mc² Everybody knows that!
:]

2025-11-24 19:13:16 UTC

oh, morning random image, nobody ever reminds me...
From this year ;]
https://media.infosec.exchange/infosec.exchange/media_attachments/files/115/606/262/768/655/206/original/80eb16b2bf6d6181.jpg

2025-11-19 01:26:30 UTC

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I am super good at bowling, I always get the ball past all those glasses without knocking any of them over!

2025-09-25 20:32:11 UTC

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remember the rest states and keyframes!
;]

2025-08-18 23:48:17 UTC

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You know how canbus does that part right? I thought it was a cool trick.

2025-06-25 07:59:59 UTC

OK, so, yea, I'd never really thought about the paint job on ferrite cores, but there is a thing to this, here is what I'm seeing....

2025-06-19 23:29:05 UTC

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hu? but its rs232, your not supposed to be able to burn it out. and you can use the program I posted to get the data.
or build the paralell port adapter I designed
?

2025-05-27 23:13:07 UTC

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tabo using the 0 subnet,
192.168 is a class C space comprised of addresses from 192.168.0.1 to 192.168.255.254 it can be split into sub-spaces but in particular circumstances on networks you get cornered when using 0 in the 3rd octet.

2025-05-27 23:09:32 UTC

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wtf doesn't EVERYONE know NOT to use 0???

2025-04-16 02:50:42 UTC

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wow, microsoft will probably love this, no more having to fix those pesky security issues. (?)

2025-04-06 22:11:02 UTC

I know you like your code editor, but, can it do this?
https://media.infosec.exchange/infosec.exchange/media_attachments/files/114/293/305/835/258/330/original/874aacef494355d1.mp4

2025-03-08 22:48:22 UTC

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🤔 .... but....uh...
https://media.infosec.exchange/infosec.exchange/media_attachments/files/114/129/245/766/994/997/original/8fed6c3867c14138.jpeg

2025-03-08 22:35:04 UTC

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oh, are you tracking one of the edges in one direction (rising/falling) or both in both?

2025-03-08 22:34:25 UTC

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I have a nice little FSM that I like to use with incremental encoders, but I'm not sure it would be fast enough.
#define ERROR 0
signed char offsets[] = {
/* 0000 */ 0,
/* 0001 */ +1,
/* 0010 */ -1,
/* 0011 */ ERROR,
/* 0100 */ -1,
/* 0101 */ 0,
/* 0110 */ ERROR,
/* 0111 */ +1,
/* 1000 */ +1,
/* 1001 */ ERROR,
/* 1010 */ 0,
/* 1011 */ -1,
/* 1100 */ ERROR,
/* 1101 */ -1,
/* 1110 */ +1,
/* 1111 */ 0
};
oldstate = oldstate | (PIND & 0x0C); // Update Oldstate
position += offsets[oldstate]; // Update Position
oldstate = oldstate >> 2;
(pulled from an AVR port of the code)

2025-03-08 22:03:48 UTC

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were talking about the joysticks, right? rotary? Their not pots or magnetic with analog out?
.. and your counting the lines by interrupt? how fast is your z80?

2025-03-08 21:55:36 UTC

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cool what did you do for ADC, and thats an awfully large backup battery you have...

2025-02-20 01:24:42 UTC

https://github.com/ruenahcmohr/esp_01Expand32
I expect to see them in the wild now ok?
https://media.infosec.exchange/infosec.exchange/media_attachments/files/114/033/597/505/252/894/original/54d47d7f168bb665.jpeg

2025-02-04 04:16:06 UTC

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dear internet archive, how can I (in canada eh?) help support data storage for you?

2025-01-16 00:49:26 UTC

10
If I TELL you its base 16, do you call it ten or sixteen?. Hex ten? zero-x-one-zero?

2025-01-07 04:13:22 UTC

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Action!
Don't let trivial things cause hangups on your cool projects.
Sometimes, you have to finish to know how to start, that's just the way the universe is.
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/785/119/236/054/724/original/0ad1daa35bc4eb34.mp4

2025-01-07 04:10:55 UTC

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wires.. solder....power...
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/785/112/386/656/501/original/55d9496608f0eb50.jpeg
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/785/112/384/502/573/original/a958054b3ba9137c.jpeg
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/785/112/376/570/389/original/e02cfd8b695575d0.jpeg
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/785/112/329/136/501/original/81b899ac8fb44e3e.jpg

2025-01-07 04:09:42 UTC

Shameless repost from 2022.
How t make a PCB without kicad. Or a PCB...
1, holes... (this will be a thread)
#electronics #diy #diy_electronics
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/785/105/546/663/884/original/56a9ea77db8abc14.jpeg
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/785/105/539/280/597/original/286c69a1317904d1.jpeg
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/785/105/537/069/549/original/bcc48fd20f17642a.jpeg
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/785/105/534/903/979/original/3711ac8ebdfe4e3e.jpeg

2024-11-27 21:52:34 UTC

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so, what is the update rate on that many decimal places?

2024-10-31 09:55:56 UTC

I'm almost done, any silkscreen thoughts?
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/401/433/329/138/180/original/fa4de9898bd99ece.png
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/401/433/357/193/036/original/87d822c0c05d32f9.png
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/401/433/360/235/581/original/4dc3524848d093c8.png

2024-08-25 00:06:06 UTC

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Latice (, ice40, ecp5, machx02, machx03, nexus)
ok, I'm surprised there are not a few old xilinx in there.
I'll keep my eyes open for lattice chips!

2024-08-24 22:41:01 UTC

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Drat, I dont think it rendered right in my browser, I was curious if I could round up any supported FPGAs and play.
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/019/403/553/930/826/original/dc8afed2fa4207fe.png

2024-08-24 22:27:41 UTC

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and I dont mind if it doesn't cover my case, but I'd really appreciate a supported devices list :] (I haven't looked, I'm completely confident there is one. Lots of OSS FPGA projects say nowhere what FPGA they were designed for )

2024-08-24 20:35:22 UTC

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but I want to play with my e-waste FPGAs!
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/018/903/809/625/185/original/a7783cd0b3580df9.jpeg
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/018/903/825/847/694/original/9cb9f9803e5466a1.jpeg
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/018/906/055/415/572/original/bc9b3fbd52e15cda.jpeg
https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/018/906/437/332/243/original/dea9c129bfe18b0d.jpeg

2024-08-24 19:53:21 UTC

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cmon, lets not put all fpgas in the same group. you have to be specific about brands and generations.
For example, beside me here I have... lets see... Ah, an altera cyclone II, EP2C5F255C8N as a hobbyist, I'd LOVE to use this, but the toolchain dependencies are insane.