iam currently working on a new project, where i would like to detect the existence/closeness of several objects around the arduino up to like 1 meter. I was thinking about an rfid setup, but as the objects could have different sizes like 5 centimetre tall and only 3 centimetre wide, i think this won't work for the max distance. I was also thinking about a ble beacon, but as this one has to be activley powered all the time, it wouln't be the perfect solution. As the base could be fully customized, it may have some kind of sensors/wires overall the surface, but iam a bit lacking of a good idea for this.
I hope someone might had a similar setup, or a good idea to go.
PS: When i think about it twice, it would be better, if it can be differentiate between some areas within the one meter and the different objects, entering each area. I've added some image, hope this helps to understand, what i want to archive at the end.
Thank you and greetings, Sebastian