HC-SR501 PIR Sensor
The PIR sensor stands for Passive Infrared sensor.
HC-05 - Bluetooth Module
The HC-05 is a popular bluetooth module which can add two-way (full-duplex) wireless functionality to your projects
DHT11–Temperature and Humidity Sensor
The DHT11 is a commonly used Temperature and humidity sensor that comes with a dedicated NTC to me
74HC573 - Octal D-type Transparent Latch IC
74HC573 IC Features and Specifications
Here are