On embedded Linux, logs are memory you have to design before failure
A deployed device cannot record everything. Its logging system must decide in advance which evidence will survive the next incident.
Archive
Tech · page 13
IRZ Tech archive, page 13.
Eight electrodes turn a watch back into a gesture sensor
EITWatch places eight electrodes under a watch to read gestures from changes in wrist impedance. Its value is less the 92% headline than the tradeoff between geometry, calibration and everyday use.
The real product begins after all 700 clocks ship
A Poem/1 update reveals the quiet work after a small connected object ships: fixing, recovering, distributing and documenting.
Wi-Fi reflections can reveal breathing without a camera
An ESP32-S3 and Raspberry Pi read changes in the Wi-Fi channel to distinguish motion, presence and breathing, while documenting what the system cannot infer.
This concrete pavilion is supposed to change on its way from Lausanne to Nairobi
EPFL is taking a textile-reinforced concrete and LC3 prototype to a new Nairobi case study. The point is not to copy the object, but to see what context forces it to change.
POLARIS had to abandon its sonar idea to measure ice better
Under the ice, an elegant dual-echo sonar method collided with real signal noise. The ETH team changed measurement method instead of defending the first diagram.
This blog makes comments static and keeps only the writing dynamic
Comments live on a small server, but the blog compiles them into its pages. Reading no longer depends on the service that receives replies.
This game engine only has to fit one game
Elias Farhan is not building an engine to compete with Unity. He is moving Soup Raiders onto a stack designed around this particular game, with all the control and responsibility that brings.
Thunderbird learned you can’t redesign a calendar one dialog at a time
Thunderbird started by modernizing isolated pieces of its calendar. Then the team saw inconsistency accumulating between those pieces and had to step back to design the system.
CAD gets less annoying, one small friction at a time
Text directly inside Sketcher, finer recomputes, a responsive UI and multi-file editing make the next FreeCAD release look less like a feature demo and more like a hunt for everyday irritation.