Fabrio, If you want to control charging of the android programmatically (in the hardware it cuts off only when full charge automatically) then I would suggest controlling the power going to the android controlled using a power mosfet switched programmatically when you sense the system has gone to battery backup
On Fri, Feb 7, 2014 at 10:28 PM, Ytai Ben-Tsvi <[email protected]> wrote: > I don't know if there's a programmatic way to disable charging on the > Android. > What you *can* do, however, is detect the power fault condition and put > the phone to sleep. It should take very little current at this mode, > assuming the battery was previously fully charged. > > > On Fri, Feb 7, 2014 at 7:49 AM, fabrio pellegrinetti <[email protected]>wrote: > >> >> hello to all. >> during the development of my home automation project, I came across the >> problem of the power supply of Android and ioio which must be separated. >> my board provide power supply of 14V 2A with a transformer 220V to 14V >> and one backup battery of 1200mAh and 12V recharged from the transformer. >> When the the power line is off, the battery must supply power at the >> ioio, but he mustn't to the android. >> For now I use Y split cable power supply double USB A and one usb micro. >> >> Micro usb connected to the android, first usb to ioio and second usb to >> another standard android power supply. the poteziometer Vbus is set to >> minimum in accord to the usb debug survey. >> Problem is when the system goes on battery the an amount of mA goes to >> the standard android power supply and this reduce backup battery charge >> What I would like is to be able to check the current Vbus, from java code >> from a ioio embedded digital potenziometer. >> >> so when detect power failure, I can dinamically reduce Vbus current. >> >> thanks >> best regards >> >> fabrio >> >> -- >> You received this message because you are subscribed to the Google Groups >> "ioio-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at http://groups.google.com/group/ioio-users. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- > You received this message because you are subscribed to a topic in the > Google Groups "ioio-users" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/ioio-users/s_NY9im_SVY/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/ioio-users. > For more options, visit https://groups.google.com/groups/opt_out. > -- *Thanks & Regards,* *Nishant Sood* *--* *CEO and Founder* *Winacro Innovation's Inc.* *----------------------------------------* *www.winacro.com <http://www.winacro.com>* *----------------------------------------* *Contact's:* *Mobile: +91-8447476798* *Phone: 0129-4176798* *Email: [email protected] <[email protected]>* -- You received this message because you are subscribed to the Google Groups "ioio-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/ioio-users. For more options, visit https://groups.google.com/groups/opt_out.
