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by SebTC
Sun Apr 10, 2016 10:45 pm
Forum: Graphics, sound and multimedia
Topic: Bluetooth audio streaming
Replies: 131
Views: 358641

Re: Bluetooth audio streaming

Do you use the Pi3 bluetooth? I had the same problems. Tried other sample rates, realtime-scheduling etc. No luck. Even built newest Pulseaudio from source. Streaming sounds good when disabling on-board Wifi using the following command: sudo ifdown wlan0 Funny thing: without Wifi, I can see in Bluem...
by SebTC
Fri Mar 25, 2016 5:00 pm
Forum: General discussion
Topic: PI3 Bluetooth
Replies: 4
Views: 1289

Re: PI3 Bluetooth

Can you try connecting with your phone to stream audio from your phone to the Pi? I could make it work with apt-get install pulseaudio pulseaudio-module-bluetooth pavucontrol and then pairing with blueman. However, my audio only sounded good (no excessive pops/glitches) when disabling the wifi: ifdo...
by SebTC
Thu Mar 24, 2016 12:43 am
Forum: Troubleshooting
Topic: Pi 3 bluetooth audio not working
Replies: 7
Views: 2743

Pi 3 bluetooth audio not working

Just got a fresh image of Raspbian Jessie for my Raspberry Pi 3 B. Updated everything (apt-get update, apt-get upgrade and rpi-update). I'm trying to stream audio from my Android phone to the Raspberry. Testing audio from the audio jack. Saw this tutorial: https://wiki.debian.org/BluetoothUser/a2dp ...
by SebTC
Wed Mar 23, 2016 10:01 am
Forum: Official Foundation Display
Topic: Touchscreen power off or sleep mode
Replies: 4
Views: 6076

Re: Touchscreen power off or sleep mode

I did some sniffing, but it looks like a lot of data going on the i2c-0 bus. Posted the request on Github: https://github.com/raspberrypi/linux/issues/1351 Popcornmix came up with that it is not a good idea to just get the power off the display, because it could be during i2c data. I think this is i...
by SebTC
Wed Mar 16, 2016 5:14 pm
Forum: Official Foundation Display
Topic: Touchscreen power off or sleep mode
Replies: 4
Views: 6076

Touchscreen power off or sleep mode

For a project, I need to turn off the power of the official 7" touchscreen or put it in a sleep mode. Turning the backlight off can save much energy, but the rest of the display still consumes around 100mA. Switching the power of the screen is possible, but this won't work out of the box since the s...
by SebTC
Sun Mar 13, 2016 5:10 pm
Forum: Beginners
Topic: Sleep Mode - and or turn off backlight?
Replies: 203
Views: 110341

Re: Sleep Mode - and or turn off backlight?

The Pi runs on a big battery. When a system is powered on, the user can control that system. When off, the Pi communicates with a server every x minutes. I can bring the Pi 3 down to 150mA@5V without touchscreen/video when Wifi, usb, ethernet,HDMI output and other stuff switched off. (~70mA@12V batt...
by SebTC
Sun Mar 13, 2016 1:04 pm
Forum: Beginners
Topic: Sleep Mode - and or turn off backlight?
Replies: 203
Views: 110341

Re: Sleep Mode - and or turn off backlight?

Let's hope one of the developers knows how to reduce current draw. Without the backlight the board is still consuming lot of power. Other option is to disconnect the power from touchscreen, but have to reload initialising data. Is there any code or function to reload this data?
by SebTC
Sun Mar 13, 2016 9:46 am
Forum: Troubleshooting
Topic: [RPi3] Power led control
Replies: 2
Views: 1063

Re: [RPi3] Power led control

I'm also interested in this. Is the PWR led (led1) hardwired or is there an update/solution to turn it off? Guess it can save around 5mA.
by SebTC
Sun Mar 13, 2016 12:07 am
Forum: Beginners
Topic: Sleep Mode - and or turn off backlight?
Replies: 203
Views: 110341

Re: Sleep Mode - and or turn off backlight?

The backlight control works great with the 1.1v board. Curious about when or how it is possible to completely shut off the touchscreen (over i2c). Bringing the brightness to 0% is not enough power saving for my project, need to completely shut off the screen sometimes. Too bad switching the power to...

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