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.
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.
The H8054 PIR motion detection module provides basic motion detection in a small package. Compatible with the Arduino and Raspberry Pi
These ties are flexible, reusable, and adjustable for when you have delicate bundles or bundles that frequently change in size.
This robot is a prebuilt 2WD All Terrain Robot (ATR) designed and fabricated in North Carolina USA. This robot supports our IG42 planetary gear motors.