scene: Raspberry pie 3B+ camera is official: , , , , : mmal: mmal_vc_port_enable: failed to enable port vc.null_sink:in:0(OPQV): ENOSPC mmal: mmal_port_enable: failed to enable connected port (vc.null_sink:in:0(OPQV))0x16b90b0 (ENOSPC) mmal: mma...
contact with raspberry pie script file for the first time, this is downloaded on github, why report not found s fault? function install_module { -sharp src=$1 mod=$2 if [[ -d var lib dkms $mod $ver $marker ]]; then -sharp rmdi...
openwrt: there is also a 17 lede-17.01.5-brcm2708-bcm2710-rpi-3-ext4-sdcard.img are all stuck here. What s the reason? am I in the wrong place? Light cat-routing-raspberry pie -desktops, etc. ...
when the raspberry pie 3 is plugged into the power supply, only the red light is on, and the CPU temperature is very high, and then plugging in the monitor does not respond, so it cannot enter the system, even if the SD has been rewritten many times. Is ...
if you want to build a gitlab, you don t want to use someone else s server, just like your own. Many great gods on the Internet say they have built it. but I don t know much about this. I m a front-end player. Linux knows and has deployed some web...
A question I was asked by the back end a few days ago, because the background page is compatible with ie8, it should be carried out under ie. gives iframe a move-out event, which is triggered as soon as the mouse moves over the scroll bar when the mouse...
many people say that R & D students should write documents in markdown, which is efficient, but as a front end, they have never found a use scenario for markdown? Please guide me, Daniel. Thank you. ...
how js detects the page and returns to the current page through the return button to refresh the current page is not implemented through code by clicking the return button above the browser if the test returns to the current page and wants to refresh...
try to compile the simplest Spring program: Main.java import org.springframework.beans.factory.BeanFactory; import org.springframework.context.support.ClassPathXmlApplicationContext; public class Main { private String who = null; public...
I use Aliyun s ECS with 1G memory, and the configuration is slightly lower. I originally wanted to install an elasticsearch to realize full-text index search, but the software elasticsearch was developed by java. It seems that the software developed by ...