4 ms·
Field-flashing isn't that bad as long as it can safely be done over bluetooth, and I'd be willing to take that risk to have reasonable battery life.
by Sephr 16y ago
Field-flashing isn't that bad as long as it can safely be done over bluetooth, and I'd be willing to take that risk to have reasonable battery life.
- brandon 16y agoSo, again, I don't know anything about the device in question, so this is all conjecture... but: Even given that OTA flashing is possible, why bother? The device has no means of waking the user without a phone in bluetooth range, so what's the upshot? I don't know that battery life falls into that category because the device would need some pretty serious upgrades, and cost would obviously increase: - More RAM. Lots more. Enough to contain an entire firmware image during OTA and an entire night of sleep/movement history. - More MIPS. Actigraphy isn't going to be as cheap as store-and-forward. - A reliable RTC so that the device can ping the phone at the right wakeup time. - etc. If I was in their position, I'd build the device to be as dumb a peripheral as possible. Push the complexity out of expensive hardware and into software. I'd also probably have built in a sweet inductive charging pad, too, but I'm a sucker for shiny things.