> I've connected beagleboneblack to my car power supply with 24V to 5V step down.
24V "power supply" in a car? If this means you're this from the accessories circuit, you're doomed. Accessories are turned off while the car is being started, and a cap won't be enough to power the beaglebone, since they stay off as long as you're turning the engine. Another problem is, you'll corrupt the filesystem with an out-of-the-box beaglebone. You'll *have to* use a read only file system. You could tie the beaglebone directly to the battery (with a fuse of course) and use some circuit to monitor when to turn it on and off. On Tuesday, November 5, 2013 9:24:49 AM UTC-8, Wilfredo Nieves wrote: > > I think you should be fine as long as you don't use a value that is too > high or too low. Too high may cause problems with rise time and too low may > not keep enough power supplied for the board to stay powered up. Also caps > aren't like batteries, the charge almost instantaneously where as batteries > need time to fully charge so as long as you can get the cap charged fast > enough the board should power up without any problems. > > -Wil > On Nov 5, 2013 8:27 AM, "satya gowtham kudupudi" > <satyago...@gmail.com<javascript:>> > wrote: > >> Thank you. I will give a try. As per the post here >> https://groups.google.com/forum/#!msg/beagleboard/aXv6An1xfqI/mURD3LfQ5dMJ? >> the power source should have proper rise time. I'm afraid a capacitor will >> increase the rise time. Any way I'll give a try. >> >> -- >> 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 beagleboard...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> > -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.