The H8054 Mini PIR motion detection module is designed to provide basic motion detection to your project.
The HC-SR501 is a passive infro-red (PIR) sensor which is used to detect motion based on the infrared heat in the surrounding area.
This is a very small light sensor. A photo resistor (also known as a photodector, or photocell) changes resistance depending on the amount of light it is exposed to.
This set of wheelchair motors makes great heavy duty robot motors. One left motor and one right motor. They are right angle gear drives have been modified to include encoders. They are 24VDC and the operating speed is 120 RPM.
RPLIDAR A2 LIDAR is a 360-degree two-dimensional laser range scanner (LIDAR)