Our smart bowl fires its camera whenever anything comes within 40 centimetres — a dog's nose, a human's ankle, a broom. That is by design: in the data-collection phase, every visitor is a labeled training sample. But the product question is sharper than the trigger: the bowl
An engineering investigation into how sensor geometry, optics, and software together determine the true field of view of an integrated camera system. Introduction When you build a vision system out of off-the-shelf parts, it's tempting to assume that if the sensor and lens are mechanically compatible, they'
Late at night, a smart pet bowl in a customer's kitchen quietly downloads a new operating system, installs it, reboots into it, checks that everything still works — and, finding a problem, silently reverts to the version that was working an hour ago. The owner never notices: no support
Deeplinks Are Distributed Systems in Disguise Why application navigation behaves more like distributed messaging than request routing. For years, I thought of deeplinks as a routing problem. A URL came in, it was parsed, and the application navigated to a screen. It felt deterministic—almost boring. That assumption lasted until
Most engineers learn backpressure the moment a fast producer overwhelms a slow consumer: you slow the producer down. But there's a mirror-image problem that gets far less attention. When a device has been offline — a home router rebooted, the ISP hiccuped, the WiFi dropped for an hour — it
Shared power makes modular hardware clean. One carrier board can feed multiple sensor boards. One backplane rail can support several modules. One main supply can branch into compute, communication, sensing, audio, illumination, and auxiliary boards. The architecture looks efficient, serviceable, and scalable. But shared power also creates shared failure paths.
Everbowl logs a dog's day in numbers. Load-cell weights on every bowl visit, water refills, eye-temperature frames from the thermal camera, ambient temperature and humidity, audio classifications of chewing and licking. Across a fleet this runs into thousands of events per dog per day. Almost none of it
Performance is often associated with page speed. While loading speed is an important part of the user experience, it isn't the whole story. A page may load quickly yet still feel frustrating if elements shift unexpectedly or interactions are delayed. Exploring a Next.js application that appeared fast
When a sensor hub captures images, thermal frames, audio, and telemetry and pushes them over a 5 Mbps CAN FD bus, the software on the receiving end has exactly one job it cannot fail: don't drop frames. An image alone is thousands of CAN FD frames arriving back-to-back
A dog cannot tell you it slept badly. It just does, and then it is cranky, or slow on the morning walk, or off its food, and you are left guessing why. Sleep quality turns out to be one of the earlier signals that something is wrong with a dog: