dc540.org
@dc540.org
DC540 Virtual meetup: 6:30pm Eastern time Monday 9/15.

If you're a NOVA Defcon attendee, past, present or future, jump in and make your presence known. These connections often bear fruit.

discord.gg/xVRpNbvaAR
Join the DC540 Discord Server!
Check out the DC540 community on Discord - hang out with 1289 other members and enjoy free voice and text chat.
discord.gg
September 14, 2025 at 7:11 PM
First DC540 meeting in a new member-provided space last night was a big success. We felt welcomed, the meeting was well-attended, and good conversations were had. Sounds like we may be back at this space again in October. Stay tuned.
August 26, 2025 at 1:18 PM
ID Badge Printing fun

So some years ago I picked up a Fargo DTC400e id badge printer at auction. It was cheap, and something I wanted to fool around with. I had already been recreationally fooling around with magstripe and RFID cards, it just seems like a natural progression of interests. A recent…
ID Badge Printing fun
So some years ago I picked up a Fargo DTC400e id badge printer at auction. It was cheap, and something I wanted to fool around with. I had already been recreationally fooling around with magstripe and RFID cards, it just seems like a natural progression of interests. A recent meeting revitalized my interest. There's a thing the group wants to do and it might come in handy.
dc540.org
April 1, 2025 at 2:39 PM
DC540's Monday evening virtual meeting has begun. Find us on discord. discord.com/channels/669...
Discord - Group Chat That’s All Fun & Games
Discord is great for playing games and chilling with friends, or even building a worldwide community. Customize your own space to talk, play, and hang out.
discord.com
March 17, 2025 at 10:45 PM
We're in person tomorrow in Chantilly/South Riding. Learn about it here: discord.gg/C8cWANkX?eve...
Join the DC540 Discord Server!
Check out the DC540 community on Discord - hang out with 1262 other members and enjoy free voice and text chat.
discord.gg
March 9, 2025 at 12:22 PM
More meshtastic fun: Part 4: Range Testing

Of course, you want to know how far your signal is going in every direction. If you're lucky, you have Kevin to test with who repeatedly types the word The into his app without letting you know if he's actually seeing your messages. I am assuming that The…
More meshtastic fun: Part 4: Range Testing
Of course, you want to know how far your signal is going in every direction. If you're lucky, you have Kevin to test with who repeatedly types the word The into his app without letting you know if he's actually seeing your messages. I am assuming that The is his auto-correct changing Test to The. But if you actually want scientific data, you might want to look into the Range Testing feature (found in Module config).
dc540.org
February 1, 2025 at 2:24 PM
This ecosystem and its inhabitants feel a little punk rock to me, and that makes me feel at home. I hope we can hold on to some of that energy and make it last.
November 19, 2024 at 5:08 AM
DC540 Nova is having our November public meetup this evening at the Gum Spring Library in Aldie VA, Meeting Room A, 7PM. Come meet your new favorite "local" hacker community and death cult. #defcon

discord.gg/vnDQehXV?eve...
Join the DC540 Discord Server!
Check out the DC540 community on Discord - hang out with 1187 other members and enjoy free voice and text chat.
discord.gg
November 18, 2024 at 3:28 PM
DC540's bsky account here. We meet on Mondays. Sometimes in northern Virginia, sometimes on Discord. We'll try to make announcements here. No promises. Best place to find out more about is is by hitting our actual Discord. Link on website (dc540.org).

Yes, we killed our xitter account too.
DC540 Rocks Your Triple-Striped Tube Socks
dc540.org
November 15, 2024 at 1:09 AM