I’ve got a Haltec V4 running on battery/solar as a rooftop node. It’s got a 10ah battery, but it’s solar panel came loose and is currently very poorly aligned. On a cloudy set of days, it drops to about 80%. That said, I had to disable Wi-Fi and Bluetooth to do it. So really, not using ESP32 features, just it’s 1W transmitter. My dedicated MQTT node is also ESP32, with Wi-Fi enabled, but it’s constantly plugged in.
Yea, after reading the article, this is an overall of the electronic application process that needs to happen before entry. And it’ll include not just social media handles, but also email addresses. Seems reasonably easy for a “bad guy” to skirt.
Honestly, I suspect this is a sneaky way to get CBP access to what ever data sharing shit the social media companies have with the rest of the spooks. Simply by attempting to enter the US someone “agrees” to an automatic search of their social data.
It’s probably because entry for Canadians is specified by a different program. Even the State Department website seems to exclude Canada from the VWP.
If you were to actually read the substack the original author wrote, it’s well justified reasoning. The original poverty calculation was based on the cost of food as a percentage of income of a family that is fully participating in society. The author explains though that food is a much smaller portion of our daily expenses and that the cost of fully participating in society includes significantly more expenses. So, if we still use food as a baseline, but re-evaluate it’s percentage of expenses. The new poverty line comes out to about 130k. The author also validates this by looking at the national average expenses and indeed for a family, fully participating in society with no government support, it’s around that range. But you know, continue being snarky.
You’re going to a lot of effort to not actually mention what this thing is, which makes me wonder what it is and I suspect knowing that would provide additional and useful context.
I believe for urban areas, low gain is suggested. I’m in a suburban area, and after testing I found my repeater did better with a 2dbi antenna than a 6dbi.
Little update. Tried out this 2 dbi antenna tonight, and got probably about a 50% improvement in range. About 4500 feet before, to 1.25-1.5 mile depending on direction. So, definitely appreciate the suggestion!
In terms of layout, there were a few decisions. For antennas, it’s because I didn’t want to put too tight of a bend in either cable, preventing a crimp. Not sure if it matters. Likewise, the rak boards are pushed up as far as I can to keep enough room to easily access the USB ports should I need serial access.
Awsome! Yea, I’ve still got a lot to learn about antennas. I’ve been working towards my general HAM license, and antenna design starts to come into play at that point.
I’ve also been trying to incorporate a raspberry pi into another node I’m working on, but it’s a pi zero 2w. I’d like to build a fully off grid, solar powered ADS-B node. The current build is too much for even 3 18650s. Not sure it’ll ever work out. The ultimate goal is a mesh repeater set up with a pi for occasional serial control and updates. We’ll see if I ever get there.
Yes, as mentioned in another comment, I understand the impact. The mesh traffic in my area is extremely light, and I expect cross node interference to be extremely rare. But, it’s something I plan to address in the next version.
That makes sense. My understanding is gain is expressed relative to a perfect omnidirectional antenna. So, higher gain means you’re making trade-offs in the area covered by the antenna. I’ve ordered some 2 dBi antennas to test with before deploying these.
Yea, it’s definitely not ideal for a high traffic repeater. My area’s got pretty minimal traffic, so I don’t expect there’s enough traffic to cause interference right now. When I get to a V3, I’ll probably be upgrading to a wider enclosure to get better spacing. The same company has a 200mm tall box I could mount horizontal, and put the antennas on the long side.
I work at an Infrastructure Cloud company. I design and implement API and Database schemas, I plan out backend workflows and then implement the code to perform the incremental steps of each workflow. That’s lots of code, and a little openapi and other documentation. I dig into bugs or other incidents. That’s spent deep in Linux and Kubernetes environments. I hopefully build monitors or dashboards for better visibility into issues. That’s spent clicking around observability tooling, and then exporting things I want to keep into our gitops repo. Occasionally, I’ll update our internal WebUI for a new feature that needs to be exposed to internal users. That’s react and CSS coding. Our external facing UI and API is handled by a dedicated team.
When it comes to learning, Id say find a problem you have and try to build something to improve that problem. Building a home lab is a great way to give yourself lots of problems. Ultimately, it’s about being goal oriented in a way where your goal isn’t just “finish this class”.
This is because there isn’t a job shortage. It’s offshoring. The company I (thankfully willingly) left 2 years ago has shifted all of their software hiring to Europe. And since I left has had multiple US focused layoffs. All while the Euro listings keep popping up. And I get it, the cost of living is much lower and the skill set is equivalent. So yea, get your bank. But, this is companies exploiting Europe/Asia, rather than it being something Europe/Asia is immune to.
Yea, it’s the combo of the chiller and cooling tower is analogous to a swamp cooler. The cooling tower provides the evaporative cooling. The difference is that rather than directly cooling the environment around the cooling tower, the chiller allows indirect cooling of the DC via heat exchange. And isolated chiller providing heat exchange is why humidity inside the DC isn’t impacted by the evaporative cooling. And sure, humidity is different between hot and cold isles. That is just a function of temperature and relative humidity. But, no moisture is exchanged into the DC to cool the DC.
Edit: Turns out I’m a bit misinformed. Apparently in dry environments that can deal with the added moisture, DCs are built that indeed use simple direct evaporative cooling.
Practically all even semi-modern DCs are built for servers themselves to be air cooled. The air itself is cooled via a heat exchanger with a separate and isolated chiller and cooling tower. The isolated chiller is essentially the swamp cooler, but it’s isolated from the servers.
There are cases where servers are directly liquid cooled, but it’s mostly just the recent Nvidia GPUs and niche things like high-frequency-trading and crypto ASICs.
All this said… For the longest time I water cooled my home lab’s compute server because I thought it was necessary to reduce noise. But, with proper airflow and a good tower cooler, you can get basically just as quiet. All without the maintenance and risk of water, pumps, tubing, etc.
A coworker of mine built an LLM powered FUSE filesystem as a very tongue-in-check response to the concept of letting AI do everything. It let the LLM generate responses to listing files in directories and reading contents of the files.
Why are AI agents on the org chart? That’s odd and sketchy. Seems like it could be some sort of fraud to pad numbers.