![]() ![]() ![]() I guess deep sleep isn't quite ready on Arm boards, if the limitation is RAM refresh. $40 battery, $20 panel, $16 for a Pi Zero W (add shipping and SD card), $10 enclosure, $20 no IR camera, $5 IR LEDs, $5 charger and misc circuitry, plus my labor costs and still need to make a profit, and it becomes more expensive than most "wire free" battery powered cameras. If the device uses 100mA idle it requires a 12V 20AH lead battery to run three days, engineering in some extra run time for cold weather and 50% minimum SoC. The goal is to build a cam product to sell, with the possibility of crossing over to actual security cameras for people, given the caveats above of course. The 5mA limit is not a hard limit, but beyond that the cost savings isn't really there. Use this command." I'll keep looking and may ask in their forum. Something in their data sheet that says "Deep sleep mode uses 15mA and takes 300ms to wake. Even that thread seems anecdotal I want better confirmation e.g. I had looked at Pine yesterday and for some reason concluded they don't have it. I am pretty sure you could streamline it to boot and start recording even quicker than that. but here is an article talking about a boot up in less than 3 seconds. For instance these guys got it to boot in a second: edit: that's probably not the best example since they actually don't boot linux. You would however have to make a circuit that can switch on/off the Rpi based on some trigger, but that should be trivial. Like recompiling the kernel to have bare minimum modules and modifying /etc/initd for minimum services could get your boot up to be as long a sleep wake up, with an added benefit of using no power when not active. you can power up network and the rest of the system once you captured the event. #Raspberry pi sleep mode installOdroid is the other option C1 has a sleep mode: The other option you have is just streamlining Raspbian install on say RPi to support a bare minimum features so that it can boot quickly, I mean you only care about bringing up a camera quickly. ![]()
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