[MCU] 【BIGTREETECH PI开发板】 USB摄像头测试

TL-LED 2023-7-6 13:01 楼主

这篇来测试下USB摄像头。

一、USB摄像头设备

1.1、查看USB摄像头模块

USB摄像头连接到开发板后，执行命令：lsmod来查看内核加载的USB摄像头硬件设备

1.2、查看摄像头设备节点

更新软件包

安装v4l-utils

biqu@BTT-CB1:~$ sudo apt install -y v4l-utils

查看设备节点
biqu@BTT-CB1:~$ v4l2-ctl --list-device

二、fswebcam摄像头拍照

2.1、安装fswebcamm

biqu@BTT-CB1:~$ sudo apt-get install -y fswebcam

2.2、执行拍照

biqu@BTT-CB1:/home$ sudo fswebcam -d /dev/video0 --no-banner -r 640x480 -S 5 ./p1.jpg

生成的图片

复制到电脑，打开图片

二、motion测试USB摄像头

2.1、安装motion软件

biqu@BTT-CB1:~$ sudo apt install -y motion

biqu@BTT-CB1:~$ sudo apt install -y motion
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following additional packages will be installed:
  libmariadb3 libmicrohttpd12 libpq5 mariadb-common mysql-common
Suggested packages:
  default-mysql-client postgresql-client
The following NEW packages will be installed:
  libmariadb3 libmicrohttpd12 libpq5 mariadb-common motion mysql-common
0 upgraded, 6 newly installed, 0 to remove and 0 not upgraded.
Need to get 984 kB of archives.
After this operation, 3,868 kB of additional disk space will be used.
Get:1 http://deb.debian.org/debian bullseye/main arm64 mysql-common all 5.8+1.0.7 [7,464 B]
Get:2 http://deb.debian.org/debian bullseye/main arm64 mariadb-common all 1:10.5.19-0+deb11u2 [37.0 kB]
Get:3 http://deb.debian.org/debian bullseye/main arm64 libmariadb3 arm64 1:10.5.19-0+deb11u2 [167 kB]
Get:4 http://deb.debian.org/debian bullseye/main arm64 libmicrohttpd12 arm64 0.9.72-2 [104 kB]
Get:5 http://deb.debian.org/debian-security bullseye-security/main arm64 libpq5 arm64 13.11-0+deb11u1 [174 kB]
Get:6 http://deb.debian.org/debian bullseye/main arm64 motion arm64 4.3.2-1 [495 kB]
Fetched 984 kB in 18s (54.8 kB/s)
Preconfiguring packages ...
dpkg: warning: parsing file '/var/lib/dpkg/status' near line 15780 package 'linux-u-boot-h616-current':
 missing 'Description' field
Selecting previously unselected package mysql-common.
(Reading database ... 72697 files and directories currently installed.)
Preparing to unpack .../0-mysql-common_5.8+1.0.7_all.deb ...
Unpacking mysql-common (5.8+1.0.7) ...
Selecting previously unselected package mariadb-common.
Preparing to unpack .../1-mariadb-common_1%3a10.5.19-0+deb11u2_all.deb ...
Unpacking mariadb-common (1:10.5.19-0+deb11u2) ...
Selecting previously unselected package libmariadb3:arm64.
Preparing to unpack .../2-libmariadb3_1%3a10.5.19-0+deb11u2_arm64.deb ...
Unpacking libmariadb3:arm64 (1:10.5.19-0+deb11u2) ...
Selecting previously unselected package libmicrohttpd12:arm64.
Preparing to unpack .../3-libmicrohttpd12_0.9.72-2_arm64.deb ...
Unpacking libmicrohttpd12:arm64 (0.9.72-2) ...
Selecting previously unselected package libpq5:arm64.
Preparing to unpack .../4-libpq5_13.11-0+deb11u1_arm64.deb ...
Unpacking libpq5:arm64 (13.11-0+deb11u1) ...
Selecting previously unselected package motion.
Preparing to unpack .../5-motion_4.3.2-1_arm64.deb ...
Unpacking motion (4.3.2-1) ...
dpkg: warning: parsing file '/var/lib/dpkg/status' near line 15854 package 'linux-u-boot-h616-current':
 missing 'Description' field
Setting up mysql-common (5.8+1.0.7) ...
update-alternatives: using /etc/mysql/my.cnf.fallback to provide /etc/mysql/my.cnf (my.cnf) in auto mode
Setting up libpq5:arm64 (13.11-0+deb11u1) ...
Setting up libmicrohttpd12:arm64 (0.9.72-2) ...
Setting up mariadb-common (1:10.5.19-0+deb11u2) ...
update-alternatives: using /etc/mysql/mariadb.cnf to provide /etc/mysql/my.cnf (my.cnf) in auto mode
Setting up libmariadb3:arm64 (1:10.5.19-0+deb11u2) ...
Setting up motion (4.3.2-1) ...
Adding group `motion' (GID 116) ...
Done.
Warning: The home dir /var/lib/motion you specified already exists.
Adding system user `motion' (UID 108) ...
Adding new user `motion' (UID 108) with group `motion' ...
The home directory `/var/lib/motion' already exists.  Not copying from `/etc/skel'.
adduser: Warning: The home directory `/var/lib/motion' does not belong to the user you are currently creating.
Adding user `motion' to group `video' ...
Adding user motion to group video
Done.
Created symlink /etc/systemd/system/multi-user.target.wants/motion.service → /lib/systemd/system/motion.service.

Broadcast message from systemd-journald@BTT-CB1 (Thu 2023-07-06 01:06:05 UTC):

motion[10216]: [0:motion] [EMG] [ALL] motion_startup: Exit motion, cannot create log file /var/log/motion/motion.log: Permission denied

Processing triggers for libc-bin (2.31-13+deb11u6) ...

2.2、修改etc/default/motion配置

biqu@BTT-CB1:~$ vi /etc/default/motion
修改start_motion_daemon=yes

文件中没有此文件的，要创建此文件

2.3、修改etc/motion/motion.conf
biqu@BTT-CB1:~$ vi /etc/motion/motion.conf

修改下面两个选项