Hi Evan, I have a weather station project using a Beaglebone Black board to send data from a Davis Weather station console via an old Nokia phone. All Solar powered.
To save battery power the board runs every minute, sleeps every 5 minutes (during the day) and 15 minutes (at night). The Kernel I use: Linux arm 4.9.67-ti-r82 #1 SMP PREEMPT Fri Dec 8 02:39:42 UTC 2017 armv7l GNU/Linux The command to sleep: rtcwake -m standby -s 3600 This wakes up after 5 minutes or if I insert or remove the USB to serial TTL cable. One of the biggest problems I have had is finding a pre-build Linux version that supports standby and USB numeration from standby. Maybe this kernel will help. All the best, Lloyd. On Friday, 23 March 2018 18:32:58 UTC, Evan Griffith wrote: > > > Hi, > > I am trying to get some clarity on the capabilities of the RTC on the > BBBW. Based on what I can see there is a nonbattery support powered RTC on > the chip. However in poking around online I hav ebeen unable to issue a > command that allows me to put the BBBW into a lower power state and then > wake up using the RTC. For context what I am hoping to do is sleep for > 10-20 minutes wakeup do something and then go back to sleep so that I can > minimize power usage in a battery powered application. Also I am running > the latest Debian stock OS with kernel 4.9.59-ti-rt-r74. > > thanks in advance for any help and let me know what info I should have > provided to get better help. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/c81cd16b-bc65-4dc8-bc16-681b99b5d509%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
