Or maybe introduce them to Little Bobby Tables by kjo in c/memes@sopuli.xyz
[-] kjo@discuss.tchncs.de 28 points 4 months ago

"comma's"?

"COMMA'S"?!

Fuse replacement guide by kjo in c/askelectronics@discuss.tchncs.de
[-] kjo@discuss.tchncs.de 13 points 4 months ago

Crinkled/rolled metal foil, probably.

Apple fans are starting to return their Vision Pros by kjo in c/technology@lemmy.world
[-] kjo@discuss.tchncs.de 1 points 4 months ago

I just gotta say that's a really great comeback 😂

Does anybody use Thunderbird on Android a.k.a. K-9 by kjo in c/linux@lemmy.ml
[-] kjo@discuss.tchncs.de 8 points 7 months ago

I do. It suffice.

Add-on: same password, same identity. by kjo in c/memes@lemmy.ml
[-] kjo@discuss.tchncs.de 10 points 8 months ago

And then there's KeePassXC.

Get it? Keep-Ass-Sexy :)

https://en.wikipedia.org/wiki/KeePassXC

1
A 74xx-defined Radio (acidbourbon.wordpress.com)
submitted 8 months ago by kjo@discuss.tchncs.de to c/electronics@discuss.tchncs.de
0 comments fedilink

A shortwave radio receiver from scratch using only cheap and easily available components, i.e. standard transistors, op-amps and 74xx logic chips. No typical radio parts – no coils, no variable capacitors, no exotic diodes.

*Permanently Deleted* by kjo in c/programmerhumor@lemmy.ml
[-] kjo@discuss.tchncs.de 5 points 8 months ago

Lol: Hello World! → Good morrow, fellow subjects of the Crown.

How should I get started? by kjo in c/askelectronics@discuss.tchncs.de
[-] kjo@discuss.tchncs.de 2 points 8 months ago* (last edited 8 months ago)

I agree with the Arduino approach for learning: try something that immediately gives feedback.

On a more concrete example you can start with Make: Electronics book by Charles Platt. PDF of the first edition (2009) is available from Makezine's own CDN. The book encourages learning by discovery. The leading text makes it clear:

Burn things out, mess things up—that's how you learn.

1
Add Video Output Port and SATA Port to an Old Firewall (mastodon.social)
submitted 8 months ago* (last edited 8 months ago) by kjo@discuss.tchncs.de to c/electronics@discuss.tchncs.de
0 comments fedilink

Not my post/video. Link to mastodon.social post which then links to YouTube video.

Poster bought an old firewall hardware:

  1. saw unpopulated footprints on the circuit board,
  2. analyzed the chips,
  3. found the serial comm to access BIOS (blocked by password),
  4. dumped the SPI flash memory,
  5. obtained supervisor password,
  6. accessed the BIOS from serial comm,
  7. enabled the video display in BIOS,
  8. soldered the HDMI port,
  9. soldered the SATA power and data ports and the associated components,
  10. connected a SATA SSD,
  11. checked that the SSD is being recognized in BIOS,
  12. made modifications to firewall circuit board to mechanically secure the SSD, and to face plate to facilitate the HDMI port,
  13. installed FreeDOS and used it as a retro gaming PC.
Linux Mastodon App Tokodon Gets UI Refresh and New Features by kjo in c/linux@discuss.tchncs.de
[-] kjo@discuss.tchncs.de 2 points 10 months ago

I hope this is available in AUR soon.

1
JTAG 'Hacking' the Original Xbox in 2023 (blog.ret2.io)
submitted 10 months ago by kjo@discuss.tchncs.de to c/electronics@discuss.tchncs.de
0 comments fedilink

Using Intel CPU JTAG to dump the secret bootrom in Microsoft's original Xbox. Disclaimer: not my blog.

1
Notes on USB PD Triggers (And ZY12PDN Instructions) (www.alexwhittemore.com)
submitted 1 year ago by kjo@discuss.tchncs.de to c/electronics@discuss.tchncs.de
0 comments fedilink

Blog not mine. I'm just sharing.

kjo

joined 1 year ago