This is an easy tutorial showing how you can control the brightness of an LED or adjust the speed of a DC fan using Arduino Board, a small BC547 transistor and a potentiometer. In my example the whole ...
This example code is in the public domain. https://www.arduino.cc/en/Tutorial/BuiltInExamples/AnalogInput int sensorPin = A0; // select the input pin for the ...
This Arduino sketch monitors the voltage output from a potentiometer connected to analog pin A0. It displays the voltage reading on the serial monitor and controls two LEDs based on the voltage level.
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