SunFounder 3in1 Kit
• Reed Switch - Wikipedia
Example
• 3.2 Feel the Magnetism (Basic Project)
• 7. Current Limiting Gate (IoT Project)
1.19 Potentiometer
Potentiometer is also a resistance component with 3 terminals and its resistance value can be adjusted according to
some regular variation.
Potentiometers come in various shapes, sizes, and values, but they all have the following things in common:
• They have three terminals (or connection points).
• They have a knob, screw, or slider that can be moved to vary the resistance between the middle terminal and
either one of the outer terminals.
36 Chapter 1. Components List and Introduction
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