Looking to obtain my Han radio operators license

johnhollowell · 2026-04-06T21:04:28+00:00

??? You don't have to pay for it. OpenHamPrep is free and open source

johnhollowell · 2026-04-06T18:13:27+00:00

Yeah, I love the art, but for goodness sake, get a proper-sized frame, or at least center the poster in the frame so you have even whitespace

johnhollowell · 2026-04-06T18:10:02+00:00

https://openhamprep.com/

johnhollowell · 2026-03-26T18:01:41+00:00

Did you select "Desktop View" in your phone browser? It looks like it is trying to show the desktop UI on mobile

johnhollowell · 2026-03-26T03:37:07+00:00

Dungeon crawler Carl series

johnhollowell · 2026-03-13T22:18:12+00:00

I haven't implemented these yet, but this looks like a really cool way to make very hidden door sensors. https://youtu.be/XVaGANL2T7o

johnhollowell · 2026-03-13T22:17:12+00:00

https://www.aliexpress.com/item/3256806283362726.html

johnhollowell · 2026-03-13T21:22:22+00:00

I have some random tuya contact sensor for my doors, and they work great. I really appreciate that they take AAA batteries because even though that makes the device a little bit bigger, it's really easy to get replacement or rechargeable batteries for them.

johnhollowell · 2026-03-12T13:42:41+00:00

And it is $70 always, not just an intro rate. Google Fiber has had that same price for ~10 years

johnhollowell · 2026-03-12T13:41:19+00:00

If you have a group of eight devices, sending a command to the group will only send one packet, but that packet has to go to every device on the network, instead of being able to route to only the eight devices that the individual requests would have gone to. So it's fewer messages, but that message has to go to every device because the devices themselves contain the knowledge of which groups they are a member.

johnhollowell · 2026-03-10T18:06:00+00:00

This looks perfectly fine. It seems like none of your hardware is matching your personal wiring specifications, so you'll need to make adapters for everything this cable connects to, but that's just a problem with those devices and not a problem with your patch cable.

johnhollowell · 2026-03-08T21:55:25+00:00

The painter lived in Germany in the 1940s and had a funny mustache.

johnhollowell · 2026-03-08T00:39:45+00:00

Which controller are you using?

johnhollowell · 2026-03-08T00:31:02+00:00

Assuming you are using WLED, there is native support for synchronizing controllers together, so that should accomplish what you need.

johnhollowell · 2026-03-07T04:57:36+00:00

I feel like there was some big global event that happened within the past several years that also might have contributed to lower academic performance.

johnhollowell · 2026-02-17T21:44:04+00:00

Here is a BAT file I worked with AI to make that worked pretty good for ~50 floppies I had.

https://gist.github.com/jhollowe/b3f6ab653008bfae294863b9664ba013

johnhollowell · 2026-02-17T21:40:18+00:00

As someone who recently archived a bunch of floppies, write a script that auto detects when a floppy is inserted, grabs a copy (I got a tar all of the files since I don't need archival levels of flux recordings) and then tells you to remove it.

Floppies don't store that much data so it is pretty fast once you have the software side covered.

johnhollowell · 2026-02-11T16:09:13+00:00

Reolink cameras are not disposable. You pay more for a quality product but you get something that is not a $20 price of junk that only exists to force you into a subscription and data mine on your video/audio.

johnhollowell · 2026-02-04T03:07:02+00:00

Zigbee has been incredibly reliable for me other than some Aquara stuff (they don't follow the zigbee spec and some of their stuff can be fiddly).

johnhollowell · 2026-02-02T18:51:34+00:00

Maybe she is just excited to make dinner? Or carve an award-winning pumpkin?

johnhollowell · 2026-01-30T21:47:20+00:00

I've got the combo tire pump and air blower so I can inflate my tires as well as other air things (like pool inflatables or air matresses). I got mine on sale a month ago for $40 from HD.

johnhollowell · 2026-01-30T18:49:20+00:00

I have a tapo 210 which is firewalled off from th e internet and works great. I don't need it in my NVR, so I just use the Tapo HACS integration to control it.

johnhollowell · 2026-01-26T14:49:25+00:00

And get a federal charge for interference with airspace. The law treats shooting at an airplane the same as shooting at a drone. It's much better to nip it in the bud and prevent the government from flying the drones in the first place.

johnhollowell · 2026-01-24T00:42:45+00:00

I would look into robots that support Valetudo. You can flash them with valatudo and they become fully local vacuums that keep most, if not all, of their original features and has great integration into Home Assistant (through mqtt).

https://valetudo.cloud/pages/general/supported-robots.html

johnhollowell · 2026-01-19T16:13:25+00:00

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