Ultrasonic is the only sensor with a narrow enough beam that also has distance sensing abilities.
I'd estimate you'd need 3 per side of bed but maybe 4
What are try to detect approaching the bed?
That would be under where the AV socket is once you've successfully removed it without damaging your Pi.....................Not exactly sure where that would be on the layout of the board...
Because of lot of us are dinosaurs and we'll still be using Python 2 until the heat death of the universeWhy does Raspberry Pi community still insist on using the legacy Python 2 ?
Using the built in RealVNC server on my Pi4 and using RealVNC viewer from a Win 10 machine - it works fine for meFrom the VNC (tightvnc) window the pull down menu
Sound advice I just use mine around the homeIf you're making it to sell or it'll be installed somewhere difficult to access then put the level shifter in for peace of mind.
+1Good luck! Windows networking is a severe PITA. I intermittently but quite frequently can't see the other Windows 10 machines on my network in the Windows network display!
There is no need to add a 3rd Pi - the mosquitto broker can run on either of your two Pi and both Pi can use it to send/receive messages to each other.but if i add one more RPi to system as a broker,
Bloomin heck - finally NOOBS has a use #WhoKnewI installed NOOBS on a old 4GB micro SD I had lying around. Plugged in a USB3 SSD to my Pi4 and selected it as the drive to install on. /boot ends up on the micro SD, root on the SSD, boots and works fine no tinkering required.
Have you got a source for that info?The Pi 4B has a different power management circuit which is less susceptible to being killed by shorting the GPIO pins