Bambuddy Says Bye To Bambu Lab Cloud Services

If you have a Bambu Labs printer and aren’t keen to send your files to Bambu’s servers with each print job, then check out Bambuddy, an open-source, self-hosted, cloud-free central comm…

Mais uma fonte nova pro Commodore 64 - Retrópolis

Não é preciso ser muito versado nas artes retrocomputacionais para saber que aquele trambolho da fonte do Commodore 64 é um desperdício de peso e espaço hoje em dia. Ela é daquele tamanho justamente porque tem que ter um transformador com núcleo de ferro que gere 5V em corrente contínua e 9V em corrente alternada

Why this $10 spectrometer chip could bring real-time chemical sensing to wearables

Researchers from the University of Cambridge and GlitterinTech, a startup founded by the same research group, have unveiled a fundamentally new type of optical spectrometer that delivers laboratory-grade precision in a device small enough to be embedded in portable and wearable technologies. By rethinking how spectra are measured and processed, the team has demonstrated a spectrometer costing only around $10, operating at a centimeter scale, and capable of applications ranging from industrial quality control to real-time health care monitoring.

1 Mechanosynthetic C2 donation. (A) Schematic of the inverted-mode STM setup. EAOGe-C2I molecules are deposited on flat Si(100), and an H-passivated Si(100) silicon probe chip (SPC) with a flat, crystalline apex is positioned above the surface. The molecules function both as imaging probes, where an applied bias (VS) drives a tunneling current (IT) through the molecule, and as reagents capable of chemically reacting with the build site. (B-E) Mechanosynthetic sequence showing the evolution of the build site as it is imaged with and modified by a molecule (Tool 1). As the build sequence proceeds, both the tool termination (inset) and atomic composition in the target area (white rectangle) change. Starting from a bare build site (B), two Si dangling bonds (DBs) are patterned by bias pulsing in an inter-row (IR) configuration (C), followed by molecule de-iodination (D), and transfer of a C2 unit to the DB pattern (E). (F) Small-area scan of the build site following the C2 transfer, centered on the target area and imaged with a new, intact tool (Tool 2). (G, H) Simulated STM image and geometry of C2 in the IR configuration (IR-C2), reproducing the experimental image shown in (F).

ESP8266 para as massas. - Retrópolis

As plaquetinhas ESP8266 (e toda a sua família) são quase onipresentes hoje em dia, com inúmeros projetos que as usam, não só para trazer rede sem fio (*), mas também em emulação de hardware. E os micros clássicos estão bem por dentro desses projetos. Resolvi então listar aqui três projetos bacanudos que usam placas dessa

Hackaday Looks Back at Canada’s Legendary CHU Time Station

Many thanks to SWling Post contributor, Rich Cuff, who shares this piece from Hackaday: “So Long, CHU, And Thanks For All The Time Signals.” It’s well worth a read—and if you’ve never tuned in to C…