tooz

hello @김용래, looks like the cpu's kept in normal temperature. can you collect console logs for the symtom?

hello @Goolge, please try multithreading reference: python - Capturing video from two cameras in OpenCV at once - Stack Overflow Python - Multithreaded Programming (tutorialspoint.com)

hello @김용래, it looks like the cpu is overheated. please use the commands to check the temperature: adb shell watch -n 1 cat /sys/class/thermal/thermal_zone0/temp do you have any console logs that we can look into the issue?

hello @kwakPro, yes, you can use 40 pin uart with mraa library for android on android os, for your reference: Developer Guide · TinkerBoard/TinkerBoard Wiki · GitHub

hello @homerwat@yahoo.com, please make sure that the vga-hdmi adapter you use is able to commnunicate between the board and the monitor. oftentimes the reason there's no output is because of the hdmi-vga adapter, you can cross-examine the issue if you have multiple adapters

hello @Reis, the easiest way is to flash the latest os, this patch has been merged in the latest os as well. Tinker Board 2/2S Debian 10 V2.0.14

hello @kokim_gt, you will have to port and configure tw9992 driver for mipi-csi. awb_v10.c is the library that rockchip uses for awb processing and we do not have source code, something related to rockchip image processing was changed (in this case, ov5647 driver) hence why the rkisp_3a errors. both tw9992 and adb7282m convert analog video(ntsc/pal) to yuv image through mipi-csi output, such application hasn't been implemented in tinker series, as far as i know

hello @James Kim, unlike ov5647 and imx219, imx477 still needs some refinement and calibration to be fully supported.

hello @sushil, the command should be sudo gpio readall

hello @H.Suzuki, sorry for the delay, please visit the link to download the header file for tinker board r2.0 (debian 10, linux 4.4): https://www.asuswebstorage.com/navigate/a/#/s/054838522E48445C8D23A201D95DCFAB4

hello @Fra189, the dsi and csi interfaces are different and cannot be configured as such

hello @H.Suzuki, please use the commands below: make tinker_board_defconfig make deb-pkg -j24

hello @Francesco T, the sd image of kernel 4.19 for tinker board 2 is mmcblk1, so it should be: sudo dd if=boot.img of=/dev/mmcblk1p4 status=progress && sync

hello @abhayrjoshi, no, the 40 pin header of tinker edge r cannot be used to power the board. only dc in jack & dc in pin header can be used as power supply pins. the full load power consumption of cpu/ npu/ usb is around 16w. we'd suggest to have power supply with 50 wattage if all the input output ports are being accessed/ used.

hello @GG17, which model are you using? tinker edge t/ tinker board r2.0/ tinker board 2s? Hi, I also have the exact same problem and have been unable to resolve it.

hello @Fra189, which os version and panel are you using?

hello @shizimi, it's in the codebase, you can use the line find -name "parameter.txt" to find it in your codebase. the file looks like this: device-rockchip/parameter.txt at linux4.4-rk3288-tinker_board · TinkerBoard/device-rockchip (github.com) it is line 11 that needs to be changed. once the changes are made, you will need to rebuild the image and reflash the board.

hello @shizimi, you can edit device/rockchip/rk3288/parameter.txt to modify partition table

hello @sbakki, the variance for 'make' is missing here, should be: make ARCH=arm64 rk3399-tinker_board_2.img -j8

hello @oussama, apart from having a sd card with os image loaded, please make sure the board enables boot from sd card -- there are four switches on the back of the board and the sd card boot mode is: on, off, on, on. if you'd like to boot from emmc, it is on, off, off, off. for more details: https://tinker-board.asus.com/doc_et.html#Flashing_the_Tinker_Edge_T more about mendel os: https://coral.ai/software/#mendel-linux

hello @Nott, to install the latest chromium, the built-in version of chromium needs to be removed first, please execute the following to 1. remove the built-in chromium and 2. install the latest version of chromium: sudo apt-mark unhold chromium-x11 sudo apt-mark unhold chromium-x11-dbgsym sudo apt -y remove chromium-x11 sudo apt-get update sudo apt -y install chromium

こんにちは @Sanko_bs 返信はこちらです→　

hello @sonyan11, uvcvideo is compiled into the kernel, tasks that are module-related cannot be supported as uvcvideo by default is not part of the module. it's necessary to change uvcvideo to module and rebuild the image in order to make the modules work.

hello @Nott, please execute the cmd below before installing chromium so all the pkgs and libs are up to date: sudo apt update && sudo apt upgrade -y and then sudo apt install chromium -y

just tested the cv2.imshow() function on my side and no errors shown. if the debian 10 os you're using is the official release from our website, python/ opencv pakages are built in the image; if you're using a third party debian 10 os, maybe follow this tutorial to get all the necessary libs/ pkgs installed: https://linuxize.com/post/how-to-install-opencv-on-debian-10/