Supplying power to one of over 100 electromagnets

Projects General Guidance
1

Hello again intelligent people!

After the great help from my previous question I've had another thought of how to realise my idea.

If I were to have a grid of over 100 spaces where children can place parts one at a time that includes an electromagnet on it, is there a way to safely and easily apply power to the inserted piece on the grid?

Or alternatively (and preferably but harder I imagine) have over 100 elecromagnets where one at a time activates according to if a piece is there?

I'm vaguely thinking relays but imagining a lot would be needed!

Also will be needing pins for two small displays so unsure if that will affect anything?

Cheers,

Mike

Edit: Forgot to mention each piece will activate as it is placed so there can be many pieces in the grid as one is added. Matrix system?

2

read X/Y problem.

you have gone past step 1 , 2 and 3 and have already eliminated all the simplicity.

please re-state your desired project without using any electrical terms, parts or devices.

what is happening in the real world ?

example : I have a letterbox for a multi-story apartment building. I want to know if there is mail in any box and put that on the web so each tenant can see if they have mail.

Also, there is a similar application that has to with parking garages.
lots of details on having a large number of sensors to monitor.
lots of people doing that and there is a lot of information. it has the same general premise.

3

I apologise, I always have trouble explaining things and tend to overcomplicate!

Essentially there will be a large board, similar to chess board where the user can insert a wooden piece into one of many slots.

Once a piece is secured I want an electromagnet/solenoid to activate which makes the piece move.

Then another piece can be secured and so on.
Ideally with the ability to activate any other time if a button is pressed.

Cheers,

Mike

4

an electromagnet/solenoid to activate which makes the piece move.

Move to where?

5

how does the piece move ?

and to where as was asked or moved how and why ?

what switch ?

if you have a board with switches, and a remote LED board with corresponding LED ?
pin in hole - red LED, no pin in hole - green LED

or pin in hole at location A and you push a pin out of the corresponding hole at location B ?