To save and resume a multi-step form in a Flutter app, treat a half-finished record as its own kind of object. Keep it out of the list the rest of the app reads, and let one opt-in server parameter bring it back. In the Hoomanely app that took 1 new
Segment labeling means marking each stretch of a recording with its own start time, end time and sound, instead of giving the whole clip one tag. In our labeling tool, a reviewer picks from 11 labels (10 sounds plus Unknown), drags a region on the waveform, and the server saves
Observation: we kept the document and deleted the code Our old admin console had grown for years. It had its own server and its own copy of every table name, and it drifted from the backend every time a field changed. The rebuild replaced it with a thin shell that
An OTA (over-the-air) firmware update replaces the software on a device remotely, without a cable or a technician. Done well, it is the mechanism that lets a product improve for years after it ships. Done badly, it is the fastest way to turn a fleet into bricks. A dependable IoT
IoT device onboarding is the sequence that takes a device from its box to a working connection with the owner’s network and your cloud: discovery, pairing, WiFi provisioning, authentication and registration. For consumer products the most dependable pattern is BLE for the first conversation and WiFi for everything after:
A time-of-flight (ToF) sensor measures distance by emitting a pulse of infrared light and timing how long it takes to return; at the speed of light, every nanosecond of round trip is about 15 centimeters of distance. Modern single-chip ToF sensors do this with an array of single-photon avalanche diodes
An edge AI camera runs its vision models on the device that holds the lens, instead of streaming video to a server. A proximity trigger decides when to capture, a quality gate rejects frames that are too dark or too blurry in under a millisecond, and only frames that pass
Pet facial recognition identifies an individual dog, not a breed, by measuring the geometry of its face and comparing that measurement against a stored profile. In our bowl-mounted camera system, a frame passes through seven preprocessing steps, a 46-point landmark model aligns the face, an embedding model turns the aligned
A feature only helps people if they can find it. It's easy to spend weeks building something useful, test that it works, and ship it, only to realise that new users walk straight past it. That gap between what an app can do and what users actually discover
When I started learning Flutter, I had a habit of trying to build everything myself. If I needed a particular feature, my first thought was usually, “How can I write this from scratch?” At that time, it felt like the best way to learn. I wanted to understand every line