I found very good hardware for learning and it's really fun too. Now, i brought PIR Motion Sensor and Arudino Uno R3 and PIR example running fine with my board. Now, i want to make door bell with the same with my all doors and that requires 3-4 PIR and 3-4 Uno. I think there must be way by which i can make my own soldering with chip only and there must not needed Arduino to be attached to every room to save some cost.
As i'm novice for electronics, i don't know how to use only ATmega328P-PU chip and what will be minimum requirements of parts for my PIR motion sensor to be used as door bell.
Can anybody advise me how i can go ahead with this example ?
Regards and thanks in advance :~