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    1. Cool Pi For You
    2. Pi 4B
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    • F

      如何利用opencv调用mipi摄像头?

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      G

      @flyman 默认的节点是video11

    • J

      coolpi 4b内存扩容为32G是否需要更换引导程序?

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      G

      @JohnConnor 可以更换,loader需要更新到最新版本。

    • Q

      4b串口扩展问题

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      J

      @qys2022 是的。也可以直接在板子上编译测试。
      wiki.cool-pi.com

    • J

      ubuntu 0306 有时桌面卡死

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      T

      @george 是的,并不影响播放视频,我运行Qt程序只要全屏也会一直输出这个,我把它屏蔽好了

    • 大法师大

      Coolpi 4b user guide for developer

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      J

      @murraytodd thanks!

    • Q

      安装位置问题

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      大法师大

      @qys2022
      相同的

      wiki有结构图纸参考
      https://wiki.cool-pi.com/en/home

    • J

      ubuntu 录屏问题

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      J

      @大法师
      加了确实可以录
      只是CPU使用率太高了 200% 300%了

    • Q

      ubuntu驱动问题

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      G

      @qys2022 可以的。

    • Q

      12V供电一个建议

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      G

      @qys2022 CM5的底板已经支持12V供电,4b只能通过测试点焊接座子。

    • 零

      Coolpi 4b怎么刷写Ubuntu mate(20)的系统?

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      大法师大

      @零度灬救赎
      树莓派的系统不能直接使用。可以用我们提供的ubuntu系统镜像(gnome桌面)

    • M

      Micro DisplayPort question

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      G

      @murraytodd Insert your DP cable and print the mesg upload.

    • P

      Coolpi 4B not booting!

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      G

      @Pharizna Please upgrade the loader to the latest version, format EMMC or TF card, and remake the boot image.

    • G

      A Method for Dynamically Hiding the Status Bar on Android 11

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    • 老

      请问如何让Android Studio显示该运行设备呢?

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      老

      @jack_admin 重新刷固件以后已成功解决,感谢

    • 1

      请教这个板子电源用多大的合适呢?

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      J

      @1103854485
      参考
      https://www.cool-pi.com/topic/140/请问coolpi-4b-电源输入功率多大合适-有电流保护吗

    • G

      Coolpi 4b driver eDP LCD

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    • C

      Coolpi 4b real time preempt_rt patches.

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      J

      @coolpicnc
      Maybe you can try to use a similar kernel version.

      https://cdn.kernel.org/pub/linux/kernel/projects/rt/5.10/older/

    • M

      Cool-pi 4b case

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      M

      @jack_admin thanks!

    • M

      Questions before buy

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      G

      @Mz3D-0

      Can support mesa GPU driver, compatible with X11 WAYLAND Currently maximum 128 G, more than 128 G need to be customized, such as 256 G.
    • E

      提个Power键的操作建议

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      J

      @edwardzhou 有这个功能,长按硬关机。如果是ubuntu系统可以配置电源键功能,按一次关机(可以设置忽略60s计时)。关机后再按一次即可开机

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