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mik3y / usb-serial-for-android

Android USB host serial driver library for CDC, FTDI, Arduino and other devices.
MIT License
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Which devices can charge while also connected as OTG Host? #219

Closed derrickrc closed 1 year ago

derrickrc commented 5 years ago

@tenkjm, @kai-morich

Sorry, not technically an issue with this library, but I invested weeks in building my app and only now am realizing the Nexus 10 cannot simultaneously charge while connected in OTG host mode. (Technically it can with a OTG Y cable AND a magnetic POGO charger - but the POGO charger is no longer available).

Kai mentioned the Galaxy S7. Has anyone else had luck with other Android devices (hopefully tablets)?

derrickrc commented 5 years ago

I found this list of Samsung devices: https://lavasimulcharge.com/nsts-ests-sts-rbm-compatibility-list/

Heavylama commented 5 years ago

We also faced such a problem.

Our solution was to use a chinese tablet which has extra plug for external charging, this device allowed to be charged through this port and freed the microUSB port for simultaneous OTG usage.

The device we used was a rugged 7,8" tablet running Android 7. I have no idea what model it was though, it only said "PAD", the designed seemed to be very similar to multiple other chinese devices. First revision had also external charging jack but didn't allow simultaneous charging, this was fixed in second revision.

derrickrc commented 5 years ago

Thanks a lot! I ended up switching libraries to a serial/bluetooth one instead: https://github.com/harry1453/android-bluetooth-serial.

puwenjie commented 4 years ago

you may be not need this devices you can use virtualbox solve this problem. I successfully used the computer to debug the android development OTG program. physical-otg-devices

olimaticer commented 1 year ago

The issue can be solved by cheap USB-C adapters like this USB-C --> OTG to USB-C <-- Power HDMI <-- Screen and sound USB 3 <-- Data You have to figure out the plug-in order of power and data.

https://www.tapatalk.com/groups/rfobasic/otg-multiport-adapter-t6432.html#p48332