3 ms·
Cool, but too bad that 5V is on the low side to run all electronics. It's easier to downgrade 12V->5V than to step up, so I'd prefer if we make new building wir
by lutorm 17y ago
Cool, but too bad that 5V is on the low side to run all electronics. It's easier to downgrade 12V->5V than to step up, so I'd prefer if we make new building wiring it be 12V.
- pmjordan 17y agoWhile there's some truth to that, I'm not aware of a de-facto standard 12V connector. I guess SATA power could be interesting as it has 12V, 5V and 3.3V rails, but I don't think it's designed to withstand as many plug cycles as USB. Firewire can supply power at 12V, but that's not standardised, so no device can rely on it. Many devices use 12V, but they use a vast spectrum of different plugs and sockets - many are coaxial power connectors of different shapes and sizes, some are not. USB is a surprisingly good choice, as it's standardised at 5V with a minimum of 100mA and the option to draw up to 500mA. It's also vastly more popular than any other similar connector.