Cooling fan noise

[Cooling fan noise]

Hi Elvis,

You could follow steps as below:

linaro@linaro-alip:~$ sudo -i
root@linaro-alip:~# echo 158 > /sys/class/gpio/export 
root@linaro-alip:~# echo 0 > /sys/class/gpio/gpio158/value <== Low Speed
root@linaro-alip:~# echo 1 > /sys/class/gpio/gpio158/value <== High Speed
root@linaro-alip:~# echo 158 > /sys/class/gpio/unexport 

Note:
1. Two-level controllable for the Fan Speed, Low and High.
2. The default Fan Speed is High.

[How to use CSI camera(s)]

Hi Elvis,

MIPI CSI0 is set for OV5647 camera as default, you could additionally set the CSI1 to OV5647 as the following in the /boot/config.txt file, then reboot the device.

overlay=CSI1-OV5647

[How to use CSI camera(s)]

On 10/16/2020 at 7:02 PM, elvis said:

Thank you for the answer, I will test board with RPi cam then.

However you wrote:

It makes a lot sense to use two different cameras for testing, but in more real scenario it would be nice to connect both cameras of the same type.

How can I change "default" settings? Will it just work if I connect two OV5647 cameras for example?

Hi Elvis,

For Debian, the hardware can be configured thru /boot/config.txt file.

Regarding CSI cameras, CSI0 is enabled with OV5647 and CSI1 is enabled with IMX219 by default.
1. If you would like to enable CSI0 with IMX219, you can add the overlay CSI-IMX219 as the following and reboot the device.
overlay=CSI0-IMX219

2. If you would like to enable CSI1 with OV5647, you can add the overlay CSI1-OV5647 as the following and reboot the device.
overlay=CSI1-OV5647

You could find more details from the file.

For Android, it seems not easy to be achieved, has to modify from the source code.

[How to use CSI camera(s)]

Hi Elvis,

Camera for Tinker Edge R:

Find the QVL (Qualified Vendor List) for Tinker Edge R Here, which including Reasberry Pi cameras. Below table is for your reference:

	RASPBERRY PI CAMERA V1.3	RASPBERRY PI CAMERA V2.1
Image Sensor：	OmniVision OV5647	Sony IMX219
Resolution：	2592 × 1944 pixels (5 megapixel)	3280 × 2464 (8 megapixel)
Sensor Image Area:	3.76 × 2.74 mm	3.69 × 2.81 mm
Pixel Size:	1.4 µm × 1.4 µm	1.12 µm × 1.12 µm
Video：	1920 × 1080 (1080p)30p	1920 × 1080 (1080p)30p

CSI locations:

MIPI CSI0 is set for OV5647 camera as default.
MIPI CSI1 is set for IMX219 camera as default.

Debian Test command: (NOTE: It's based on ASUS official released Debian image.)

MIPI CSI0 for OV5647
$ gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=100 ! video/x-raw,format=NV12,width=1920,height=1080, framerate=30/1 ! videoconvert ! kmssink 

MIPI CSI1 for IMX219
$ gst-launch-1.0 v4l2src device=/dev/video5 num-buffers=100 ! video/x-raw,format=NV12,width=1920,height=1080,framerate=30/1 ! videoconvert ! rkximagesink

Android:

Under Android, it would auto-detect to initial camera.
It doesn't support camera switch as default under official Android image; CSI0 (OV5647) camera is the first priority and CSI1 (IMX219) one is the next, if just one camera connected.

Download Official Image:

You could download the image from https://tinker-board.asus.com/download-list.html.

[Can not boot Android from SDCard]

On 9/20/2020 at 9:25 AM, yaturner said:

I have been unable to boot my Tinker Board S from an SD Card, however flashing the Android image directly onto the onboard eMMC works perfectly, has anyone been able to boot from SD Card

Hi Yaturner,

Please help to check if the jumper is setting on the Maskrom Mode as below: