Lights & motion sensor on a building

Hello, I want to build a motion sensor on a building to light it whenever someone waves, I want to place the motion sensor / Ultrasonic sensor on the other side of the road, is this possible to do?
If yes how and what parts exactly do I need?
P.S I want the motion sensor /Ultrasonic sensor to run on a different power source than the main building
Thank you

Your post was MOVED to its current location as it is more suitable.

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@3ezzo, your topic has been moved again to a more suitable location on the forum; please leave it there. Installation and Troubleshooting is not for problems with your project :wink: See About the Installation & Troubleshooting category

@3ezzo do not move this topic again or you will be banned for a period of time

chill people. it was a mistake I was editing when you moved it

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Start with a RPi.
Video camera

Spend some time researching detection of motion's of people.

Hello
Yes it is. Post a block diagram and a schematic.

Can you please explain more?

No need to go deleting posts. Just use the "edit" function.

To start, you’ve hit the first rule of project development.
You need to identify and solve all the individual parts of your project.

  • Detecting people (discriminating them from ambient background movement)
  • Detecting them waving
  • Controlling a large light
  • Powering the whole project
  • Tying it all together
  • Paying the fine for shining a bright light across a public road

Notes.
The controller & light have nothing to do with the building being illuminated, power can be taken from anywhere.

Ultrasonic will be almost useless, it will see every car and pedestrian that passes the field of view.

There is a challenge here…. if it’s dark, how can a camera see anything? If a motion sensor turns on the light for the camera to ‘see’’ the people, where’s the challenge?
Maybe an IR camera, looking for ‘people’ would be a starting point.