Let me summarize your project.
You have two cameras, one day camera, another, night camera.
You have one PIR sensor, connected to Rpi which gets alerted if a naughty cat comes in.
If it is day time, Rpi switches on camera and starts streaming video, extracts to 5 jegs a second and stops as soon as the thing has left.
Similarly the night camera at night.
Some time ago I used Rpi, Rpi Camera, and also cheap Logitech web cameras to do similar things and found many open software tools and libraries helpful.
Now I have learnt how to use python to interface real time clock DS3231. Perhaps I can do system integration this time, starting with PIR. Perhaps I can also add Google Tensor Flow cat face detection, ...
AI to identify cats 2012 and 5000 species 2017 - Dave Gershgorn 2017apr11
Cats🐱 vs Dogs🐶 Leveraging Convolutional Neural Networks and Google Colab Free GPU - Greg Surma 2018nov18
Edge TPU - cloud google
Coral Local/Offline AI (Mendel/Debian, Tensor Flow Lite, Python) - Google
Edge TPU USB Accelerator (Raspberry Pi, Debian) - USD$74.99
Adafruit PIR Sensor Tutorial - Introducing PIR
Adafruit PIR Sensor Tutorial - Connecting to PIR
Adafruit PIR Sensor Tutorial - Testing PIR
PIR BISS00012 Micro Power PIR Motion Detector IC Datasheet - Shanghai JX 2005
PIR BISS00012 Micro Power PIR Motion Detector IC Datasheet in Chinese - Shanghai JX 2005
AliExpress PIR sensor module catalog
TaoBao PIR Sensor Module Catalog
TaoBao HC-SR501 PIR Module CN¥3.60
Smart Home Security System Hardware Selection - Final Version
Now the time has come to do some experiments.
PIR Module Configuration Notes
Now I am looking at my PIR module to decide how to config, based on Adrfruit's instructions.
This is Adafruit's instruction
Now I know other's modules have two pots, me only one. Other guys have a jumper to set High Low, me no jumper, but soldered as High. I need to check up the chip spec to see what High level configs.
Now I am learning how to config the PIR chip
Arduino, CircuitPython, but no Raspberry Pi!
Lady Ada teaches how to test the PIR, then shows example Arduino code, then CircuitPython code - BUT RASPBERRY PI CODE IS SKIPPED!
I don't know circuit python and I am too lazy to learn. What can I do?
AdaFruit PIR Motion Sensor Arduino and CircuitPython Code Example
/ to continue, ...