Hi
Thinking about buying Pi4C for my carpc Android project and want to clarify some things
Does Android going to deep sleep mode on power button press?
Power consumption in sleep mode
Working mic and audio on 3.5mm jack
Ability to boot from nvme ssd
Support of EC25 LTE module with GPS
1280x720 resolution
BT Headset Profile (to use rock pi as headset for phone)
- Does Android going to deep sleep mode on power button press?
There is no power button soldered on ROCK Pi 4C, but we reserved the button pad, you can just solder one. Android will go deep sleep mode with system setting timeout. In sleep mode, the current from our testing is 15mA@10V voltage.
Working mic and audio on 3.5mm jack
Mic can’t record, Android 9 headset can play music, Android 10 headset can’t play music.
Ability to boot from nvme ssd
Supported.
Support of EC25 LTE module with GPS
Supported.
1280x720 resolution
HDML Supported.
BT Headset Profile (to use rock pi as headset for phone)
Not yet supported.
Thanks for reply, definitely going to place order.
About sound looks like better to use USB DAC.
@Shine do you plan to try enable BT Sink to use rockpi as headset ?
You’re welcome! Yes, I will try to complete this function.
Where is this pad?
Sorry for the late reply.
Refer:
I am sorry, i was wrong. There is no power button exported on the board.
Hi
Please test the following firmware （Android10）：
ROCKPI 4B
ROCKPI 4C
Open Bluetooth Sink:
enable : TunerSettings -> Bluetooth -> Bluetooth Sink.
If Wait... dialog not dismiss, you can enable bluetooth in status bar， or reboot rockpi4.
You can pair Rockpi on your phone and play music to Rockpi, which will play audio via HDMI.
