I'm very new to this but can anyone point me in the right direction. I'm a developer by trade but want to dabble in arduino and pi projects.
For my first project I want to be able to be notified if I tag goes past a certain point like a door or something. For that the reader at least needs to be able to read 1.5m.
Do you have advice on what I would need to start or research this? Is it possible with arduino?
Advice, Yes. Research commercial devices that fit your requirements. Then zero in on those that fit your needs and try to discover the parameters they are using, such as RF frequency, power, etc.