Raspberry Pi 4 HDMI Capture Work in Progress

https://youtu.be/ARgKoVPgLoI

HDMI to USB Video Capture Card 1080P: http://ebay.us/Mv0snK (eBay Affiliate)

HDMI to USB Video Capture Card 1080P (Amazon Affiliate)
US: https://amzn.to/3cwUqjv
UK: https://amzn.to/2DD2QZh
CA: https://amzn.to/2PwBNS0
ES: https://amzn.to/30w07tM
FR: https://amzn.to/31sG92a
IT: https://amzn.to/30yMOsz
DE: https://amzn.to/2XD83aO
AU: https://amzn.to/3a3ItQZ

CanaKit Raspberry Pi 4 (4GB) Starter Kit (Amazon Affiliate)
US: https://amzn.to/3azJgrW
UK: https://amzn.to/2JdMq9o
CA: https://amzn.to/3bwiRvY
ES: https://amzn.to/2T06LnM (similar)
FR: https://amzn.to/3cvIZrs (similaire)
IT: https://amzn.to/2Ar74Sj (simile)
DE: https://amzn.to/2AqfWHQ (ähnlich)
IN: https://amzn.to/3ey6fWj
AU: https://amzn.to/2VTUt1C
NL: https://amzn.to/3f5NdsD (vergelijkbaar)

FFmpeg Capture Notes: https://trac.ffmpeg.org/wiki/Capture/Webcam

Install v4l
sudo apt install v4l-utils
List Devices
v4l2-ctl --list-devices
List Modes
ffmpeg -f v4l2 -list_formats all -i /dev/video0
List Audio Devices
arecord -l
List PCMs
arecord -L
Display Video from HDMI Capture Card using FFplay
ffplay -f v4l2 -input_format mjpeg -video_size 1920x1080 -framerate 30 -i /dev/video0
Play Audio from HDMI Capture Card using FFplay
ffplay -f alsa -i plughw:CARD=Video,DEV=0
Install MPlayer
sudo apt install mplayer
Display Video from HDMI Capture Card using MPlayer
mplayer tv:// driver=v4l2:width=1920:height:1080:device=/dev/video0:fps=30
Attempt to Record Audio and Video to mp4
ffmpeg -f v4l2 -input_format mjpeg -video_size 1920x1080 -framerate 30 -i /dev/video0 -f alsa -i plughw:CARD=Video,DEV=0 vid.mp4
Attempt to Record Audio and Video to avi
ffmpeg -f v4l2 -input_format mjpeg -video_size 1920x1080 -framerate 30 -i /dev/video0 -f alsa -i plughw:CARD=Video,DEV=0 -codec copy vid.avi
Convert avi to mp4
ffmpeg -i vid.avi vid.mp4

Raspberry Pi Reset Forgotten Password

https://youtu.be/ZH9VSQ9_S_c

Raspberry Pi Playlist: https://www.youtube.com/playlist?list=PLErU2HjQZ_ZPvIdR5BEqDgO7DsGAla_AZ

CanaKit Raspberry Pi 4 (4GB) Starter Kit (Amazon Affiliate)
US: https://amzn.to/3azJgrW
UK: https://amzn.to/2JdMq9o
CA: https://amzn.to/3bwiRvY
ES: https://amzn.to/2T06LnM (similar)
FR: https://amzn.to/3cvIZrs (similaire)
IT: https://amzn.to/2Ar74Sj (simile)
DE: https://amzn.to/2AqfWHQ (ähnlich)
IN: https://amzn.to/3ey6fWj
AU: https://amzn.to/2VTUt1C
NL: https://amzn.to/3f5NdsD (vergelijkbaar)

Open this File on the “boot” Partition on a Mac/PC/Linux Computer
cmdline.txt
Change the Line
console=serial0,115200 console=tty1 root=PARTUUID=be3c3272-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
To this Line
console=serial0,115200 console=tty1 root=PARTUUID=be3c3272-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait init=/bin/sh

Save and Eject the microSD Card

Boot the microSD Card in a Raspberry Pi

Mount the Filesystem as Read/Write
mount -o remount,rw /dev/mmcblk0p2 /
Change Password for User Pi
passwd pi
Sync RAM to microSD Card before Power Down
sync

Thistle under USB Microscope

https://youtu.be/WL7TtNp-EeQ

The USB microscope I used in the video is no longer available. It was a 60x-250x model. You can find similar models on Amazon.

USB Microscopes (Amazon Affiliate)
US: https://amzn.to/3iJcnxi
UK: https://amzn.to/3avgJVJ
CA: https://amzn.to/3asrqbI
ES: https://amzn.to/3g6nC1b
FR: https://amzn.to/2PW9Gw2
IT: https://amzn.to/340xJC5
DE: https://amzn.to/33YDBfa
IN: https://amzn.to/3105qlv
AU: https://amzn.to/2E845jC

Seed Burr Under a Microscope 60x-250x: https://youtu.be/jvSahb1Ixdw

USB Microscope Playlist: https://www.youtube.com/playlist?list=PLErU2HjQZ_ZP6s_ZiMOzoJjrp5TsKu2R0