@chrisgj198

15 Followers
57 Following
137 Posts
I like to receive unsolicited advice, if it is genuinely intended to be useful. It is a way by which I learn things. If you do not like unsolicited advice even if it might be useful, then please block me now, because I don't enjoy seeing people having problems that I know how to fix and not being able to tell them. I'd like there to be profile settings so that this could be automated based on people's preferences.
chrisgj198Feb 6
An interesting challenge for anyone interested in OCR and data recovery (sorry they didn't post it on Mastodon): https://x.com/vxunderground/status/2019533328605433955
vx-underground (@vxunderground) on X

Non-nerds are asking how Mr. Al-Qudsi (@mqudsi) is working to reconstruct redacted Epstein data. Here is a high-level summary that isn't as nerdy schizo Mega tl;dr > Send email > Add attachment > Emails no understand files > Email turn files in text (Base64 encoding*) > Image 1

X (formerly Twitter)
chrisgj198Jan 19
@whitequark What FPGA would you pick to make something similar to LibreVNA (design files and VHDL on GitHub), but with the possibility of avoiding proprietary FPGA tools? It looks like jankae used a xc6slx9. I guess it mostly reads from some ADCs into buffers and does DFTs. I've been vaguely considering making something like that but with different RF components, and. I don't want to pick a chip that locks me in to proprietary tools. I don't know much about recent FPGAs.
chrisgj198Nov 30
Huh.. Firefox is no longer capable of downloading files via ftp? They really are taking the piss.
chrisgj198Jul 29, 2025
I built an optical receiver with a plastic optical fibre on its input and a USB UART on its output, and I can receive 4Mbps easily by pointing it at an ordinary indicator LED on a microcontroller board. (The USB UART drops some characters at this speed on both debian and win10, though it drops different ones on each OS. The hardware could do 12Mbps.) I wonder whether any popular devices actually do send data via their power-on LED.