Pascal Hibon wrote: > This works fine but I'm thinking of modifying it a little bit and add a > relay: the relay would switch the BPI to the car USB supply as soon as > the USB connector is powered. This will solve a small issue I have now: > when the power bank's batteries are completely depleted then it doesn't > output 5 volts until there is sufficient capacity build up in the > batteries (in other words: it doesn't output power when it is charging > completely empty batteries).
On a whim I just built a little Pi to use in the car. I bought a pretty cheap Patriot PCPB87002 power bank with passthrough power thinking I could use it as a UPS. I thought that for routine stops I'd just pause the music, leave the Pi powered by the bank and then un-pause the music when I got back on the road. But I've found that while the little Patriot box reliably continues to supply output power when the input power goes away, it usually (not always, but most of the time) very briefly disrupts the output power when the input power is applied. So the Pi will keep running while I'm parked but will reboot immediately when I restart the car. I've just written to Patriot to ask if that's normal, also making it clear that my use of their gadget as a UPS isn't really the intended purpose and I'm not accusing them, blah blah blah. Have you had any similar issues with your power bank and, if not, what are you using? On a slightly related note, my phone is a non-rooted Android, so of course I can't connect it to an ad hoc network (thanks, Google!). When I first tried my setup I brought along an iPad since Apple doesn't have the same limitation. That's obviously not very practical, but I quickly discovered a workaround: I turn on the hotspot/tethering on my Android phone and have the Pi connect to it. That allows me to use OrangeSqueeze, SSH (for shutting down after the final stop), etc. That's given me some grief with IP addresses, most weirdly yesterday with the Pi apparently running LMS on 192.168.43.85 but accepting SSH connections on 192.168.1.84!) but I'm hoping that setting a static IP on the Pi will fix that and hopefully not collide with the phone's DHCP server. ------------------------------------------------------------------------ atrocity's Profile: http://forums.slimdevices.com/member.php?userid=16009 View this thread: http://forums.slimdevices.com/showthread.php?t=105860 _______________________________________________ diy mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/diy
