I hope this can help
Change
videocapture = cv2.VideoCapture(0 )
to
videocapture = cv2.VideoCapture(0 , cv2.CAP_V4L )
Enabling Remote VNC in Jetson Nano
Fresh install Jetson Nano
sudo ln -s ../vino-server.service \
/usr/lib/systemd/user/graphical-session.target.wants
gsettings set org.gnome.Vino prompt-enabled false
gsettings set org.gnome.Vino require-encryption false
nmcli connection show
copy the UUID active connection
dconf write /org/gnome/settings-daemon/plugins/sharing/vino-server/enabled-connections "['PASTE HERE YOUR UUID']"
sudo vi /usr/share/glib-2.0/schemas/org.gnome.Vino.gschema.xml
PASTE THIS INSIDE SCHEMA
<key name='enabled' type='b'>
<summary>Enable remote access to the desktop</summary>
<description>
If true, allows remote access to the desktop via the RFB
protocol. Users on remote machines may then connect to the
desktop using a VNC viewer.
</description>
<default>false</default>
</key>
sudo glib-compile-schemas /usr/share/glib-2.0/schemas export DISPLAY=:1 //OR USE 0 /usr/lib/vino/vino-server IF success you can use remmina or realvnc client to connect to Jetson Nano
Making systemd service
sudo vim /etc/systemd/system/vinostartup.service
[Unit] Description = description about the service After = network.target [Service] ExecStart = /usr/lib/vino/vino-server [Install] WantedBy = multi-user.target
sudo systemctl enable vinostartup.service
Done
Happy Coding
Salam Ngoprek
Membuat server monitoring menggunakan docker dan grafana
Seringkali kita ingin visualisasi status dari banyak device yang kita miliki, saya membuat server/komputer/dll monitoring dengan memanfaatkan fitur input ping dari telegraf yang kemudian digabungkan dengan grafana dan influxdb.
Cekidot di github saya disini https://github.com/susiloharjo/docker-grafana-monitoring.
Hasilnya akan seperti ini
Semoga bermanfaat, selamat mencoba, dan salam ngoprek
pybadge from adafruit
Cara install node-red di ubuntu 18.04
Dibawah ini adalah catatan mengenai cara install node-red di ubuntu, pertama tama sebelum kita menginstall node-red maka kita harus menginstall nodejs terlebih dahulu dengan cara
sudo apt update && upgrade -y curl -sL https://deb.nodesource.com/setup_12.x -o nodesource_setup.sh sudo bash nodesource_setup.sh sudo apt install -y nodejs #setelah itu lanjut mengintall node-red sudo npm install -g --unsafe-perm node-red node-red-admin # done node-red sudah jalan untuk test node-red jalankan perintah dibawah ini node-red
Nah apabila kalian ingin dijadikan service biar bisa njalanin otomatis pada saat start copy script ini di
sudo nano /etc/systemd/system/node-red.service
[Unit] Description=Node-RED After=syslog.target network.target [Service] ExecStart=/usr/bin/node-red --max-old-space-size=128 -v Restart=on-failure KillSignal=SIGINT # log output to syslog as 'node-red' SyslogIdentifier=node-red StandardOutput=syslog # non-root user to run as WorkingDirectory=/home/namauser/ User=namauser Group=namauser [Install] WantedBy=multi-user.target
Lalu jalankan perintah ini maka node-red akan jalan setiap mesin start
sudo systemctl enable node-red.service
Memasang certificate alpha ssl di nginx web server
Catatan biar g lupa, beberapa hari yang lalu beli sertifikat alpha ssl untuk di pasang di web server nginx tapi entah kenapa sertifikat nya selalu ngga valid setelah dipasang, setelah ngoprek2 inilah caranya
- Copy ca certificate alpha ssl https://www.alphassl.com/support/install-root-certificate.html
- Lalu copy ca certificate yang dikirim oleh provider ssl
- Kemudian gabungkan ca tadi dengan command
cat (file ca dari provider.ca) alpha.ca >> bundle.crt,
#setelah selesai maka masukkan file bundle ca ini ke nginx ssl_certificate /etc/ssl/bundle.crt; ssl_certificate_key /etc/ssl/host.key;
Done semoga bermanfaat
Happy coding
Salam ngoprek
manual install plugin visual studio code
If you have problem installing plugin or update plugin for visual studio code maybe you can try this, dowload plugin manually and than install it with this command below
code --install-extension plugin.vsixThis is just some note
Happy Coding
Salam ngoprek
