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Zigbee motion sensor in the garage drops off the mesh every night around 3am

Something at 3am is the clue, so look at what turns off at night before you look at range.

Battery sensors are end devices. They pick one router as a parent and stay attached to it. If the router they picked is a smart plug that you switch off overnight, or that is on a schedule, or that gets power cycled by an automation, the sensor loses its parent and has to find a new one. Some firmware rejoins fine and some sits there sulking until you press the button, which is exactly your symptom.

Check which of those two plugs the sensor is parented to (the network map in most controllers shows it), then check whether that plug is switched at night. If it is, either leave it powered and switch the load a different way, or use a dedicated mains repeater that never turns off.

Second suspect if that comes up clean: a nightly restart of the controller or the container. That drops the coordinator for long enough that weak links do not recover.

388 · in/home-automation ·

30 self-serve customers and i'm still doing every onboarding call myself

I hired too early and it cost me about £4,000 and three months. Brought in a part-time contractor to take onboarding when I had roughly 25 customers, spent six weeks training them, and then discovered the process was still changing every fortnight so the training kept going stale.

They were good. The job wasn't stable enough to hand over. I'd write the process down and follow my own document for two months first, if you can't follow it without improvising, nobody else can either.

97 · in/service-to-saas ·

Node says 16 GB but I can only schedule about 13 - where does the rest actually go?

There are two separate deductions and people conflate them.

First, allocatable versus capacity. The provider reserves memory and CPU for the kubelet and the OS before anything of yours is schedulable. GKE publishes its formula and it is worth internalising because the shape is similar elsewhere: 25 percent of the first 4 GiB, 20 percent of the next 4, 10 percent of the next 8, 6 percent of the next 112, and 2 percent above that, plus another 100 MiB reserved for eviction handling. CPU is 6 percent of the first core, 1 percent of the second, 0.5 percent of the next two and 0.25 percent of everything above four.

Run that on a 16 GiB node and you lose roughly 1.8 GiB before you have deployed anything, which is most of your missing three.

Second, your own DaemonSets. Those come out of allocatable, on every node, and they are the part you control.

kubectl describe node shows you both: Capacity, Allocatable, and the Allocated resources block at the bottom.

246 · in/k8s-ops ·

Eight months of a second income and my savings has moved $600

The fix that finally worked for me was boring: the second job's pay never lands in the account I spend from. I set the direct deposit to split - the whole second cheque goes to a separate savings account at a different bank with no card attached.

Eight months of that and it's $14,800. Same spending habits, same weakness, I just made the money annoying to reach. I did nothing else.

121 · in/two-jobs ·

Building a booth rather than renting one for six or eight events a year, what does it cost once prints are included

I rent instead and have not regretted it. At six to eight events a year, the rental cost per event is a line I pass through to the client, my capital is not sitting in a case for ten months, and when the printer fails it is the rental company driving across town at 8pm. Owning starts making sense somewhere around two events a month, which is a different business to the one you are describing.

138 · in/photo-gear ·

Zigbee or Z-Wave for 20 door sensors in a 1950s house with plaster walls

The honest answer is that neither protocol solves this on its own, because contact sensors do not route on either one. They are sleepy end devices. Your mesh quality is determined entirely by how many mains powered devices you have and where they are, and that is the thing worth spending money on.

With that said, the physics is real. Z-Wave at around 900MHz gets through plaster, lath and mesh noticeably better than Zigbee at 2.4GHz, and it does not compete with your wifi. In a house with wire mesh in the walls that matters more than it does in a modern drywall box.

What I would actually do with your budget: buy the cheap Zigbee sensors, and spend the difference on four or five mains powered Zigbee routers placed deliberately, one per floor near the middle of the house, one near the back door, one in the garage on a permanent circuit. That gets you a solid mesh for less than the Z-Wave sensors alone would have cost.

The exception is the garage. 15 metres outdoors plus two walls is where I would put a single Z-Wave device or a dedicated repeater with an external antenna rather than hope.

402 · in/home-automation ·