03-01-2016, 03:49 PM
(03-01-2016, 01:57 PM)rubenk Wrote: We are currently using a very expensive but low-power arm sbc for long term field monitoring and control (embedded hardware). Has anybody looked into how low the power could go if we turned off power to the accessories that wouldn't be needed like HDMI video to audio in and out, SATA, camera, things like that? I think we could even get by with running on a single core. This is probably far outside of the intended audience of the board but that is our application and I thought I would ask.
One thing that is a definite kick in the nuz is that there is no onboard eMMC. I have plans to keep this in the field for months at a time even up to a year between service intervals. I'd rather have one place to store the data and another place to boot the OS but such is life. There is an ODROID board that allows you to have onboard be MMC but I don't know very much about it or about power consumption.
So, the final question: is it an ill-fated attempt to try to take the power out of the pine 64? If so, does anybody have any recommendations?
BTW power on our current board is about 0.5 Watts at idle
Actually, the eMMC module can be build on the Wifi/BT connector thru SDIO 3.0 bus which is also SD bus that suitable for eMMC. We are currently explore into this path which server application don't use Wifi/BT module. Noted that there is only 4bit bus and the access speed is slower. On idle mode, the Pine A64 board goes below 0.5 watt. My guess single core headless operation runs about 2 watts.