Author: db
Let’s Encrypt: huge impact to society, to me, and wildcards coming soon!
OK, there’s been a minor delay in wildcard support at Let’s Encrypt. But, i’d rather a delay than an insecure cert. So keep up the good work! Now, I use Let’s Encrypt for a variety of purposes here at mi casa. All the public web sites I run from home use a cert (the blog,…
Bitcoin crypto mining hashing spectrum, breaking mobiles, endangering first responders
Bitcoin. powered by coal, it uses more power than Ireland, and now it is interfering with the mobile network, first responders, and endangering lives. How so? Well, the rigs that people are building en-masse look like this. Notice any RF shielding? Nope. And, its a lot of high-speed electronics with a lot of wiring. This…
The LoRaWAN dragon comes to roost at my house
LoRaWAN. Its a magical network that uses unlicensed spectrum (915MHz for me), runs longish distances with stupidly low power (years of battery life), and is designed to make your things network in internet-styles. And now its in my house. At right we see a Dragino gateway. Who is Dragino you ask? Well, in their own words:…
Still doubting you should check your radon?
One of this blog readers recently acquired a Radon detector as I had mentioned earlier. Specifically, the Airthings Wave. And wow, I am glad he did. As you can see from his screenshot, he first put it in one area in his basement (Waterloo, Ontario, Canada), and then relocated it to nearer the sump-hole. And there is…
Success smells like burning hair? Sticking it to big butane.
OK, we’ve all been there. We’ve bought one of those little butane torches (perhaps for creme brulee, perhaps for heat-shrink tubing). And then we’ve discovered price discrimination. You see, it costs $7 for 150g of ‘lighter refill butane’ but a 3-pack of 227g containers of ‘stove propane’ is $10. Wait a minute, about 3x as…
