[tutorial] How to use a Photoresistor (or photocell)
Introduction A photoresistor or photocell is a light-controlled variable resistor. The resistance of a …
[tutorial] How to use a Potentiometer
Introduction For those beginning to learn about robotics, particularly in the area of building …
[tutorial] How to use a Push Button
Introduction Push buttons or switches connect two points in a circuit when you press …
[tutorial] Lesson 4: Even More IO Applications
TV, laptops, phones, printers, alarms, cars, toys... they all have one common thing. They …
[tutorial] Lesson 3: More IO Applications
Time for some more components. This time we look at resistors. Fixed value resistors …
[tutorial] Lesson 2: IO Applications
Here we are. The time has come to build our first projects. We'll meet …
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