I am a beginner and have been darting all over the place looking up odds and ends. I will soon have a Raspberry Pi server loaded with HomeBridge on it so that it will work with Apple's HomeKit, and I want to expand it's use around the house.
Recently a cat has been quite attached to our house and pays a visit daily, my window is on the ground floor so it likes to sit there, but I don't know when it's there and would like to use a sensor to alert me.
I found out that normal PIR sensors are no good when trying to go through glass (never mind double glazing) in rooms with backlights, so I found a RF sensor called "RCWL-0516" that focuses on body heat, perfect for me. I was advised to use a ESP8266 module in place of another Pi to cut down on costs and then connect it to a battery which would last a lot longer, but I don't know how to put all this together.
The following guide is what I was working from, but it's with a PIR:
I was hoping somebody might come to my rescue..
Recently a cat has been quite attached to our house and pays a visit daily, my window is on the ground floor so it likes to sit there, but I don't know when it's there and would like to use a sensor to alert me.
I found out that normal PIR sensors are no good when trying to go through glass (never mind double glazing) in rooms with backlights, so I found a RF sensor called "RCWL-0516" that focuses on body heat, perfect for me. I was advised to use a ESP8266 module in place of another Pi to cut down on costs and then connect it to a battery which would last a lot longer, but I don't know how to put all this together.
The following guide is what I was working from, but it's with a PIR:
I was hoping somebody might come to my rescue..