I would like to know how to connect my RPi 3 model B+ to my Samsung Galaxy s10e (sm-g970u) using WiFi Direct to use my smartphone as the display screen as i have NO internet access at my home and i can't turn on the TV at night because of the brightness and everyone's asleep. Is this even possible? Maybe a better solution? I also have a Lenovo Laptop i can use as the monitor display if that helps. Please help. Thank you guys & gals.
2 Answers
WiFi Direct is not specific to video: you will be running a multimedia protocol such as Miracast on top of it. There are a few projects out there, the most promising being miraclecast, though none of them worked for me (on a Pi 4). Perhaps you will be more lucky with your Pi 3.
Note that the opposite task (sending the video stream to the Pi) seems to be much easier.
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You can use either SSH och VNC, depending on your objective and both ways has mobile apps.
VNC - Will give you a graphical desktop on your mobile phone.
Ref.: https://www.raspberrypi.org/blog/get-back-to-my-pi-from-anywhere-with-vnc-connect/
SSH - will give you a command line terminal on your mobile phone.
Ref.: https://www.raspberrypi.org/blog/tinkernuts-beginners-guide-to-ssh/
Just remember that SSH needs to be enabled on your raspberry pi, use raspi-config for that task.
Ref.: https://www.raspberrypi.org/documentation/configuration/raspi-config.md
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