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Tut10 Ten Arduino Projects For Absolute Beginners
P7 Analog Input
Project 7: Control the Flashing Rate of an LED using a Potentiometer (AnalogInput)
Created on: 2 August 2012
The analog value on the Arduino analog pin A0 is changed using a potentiometer. The value read on this pin by the Arduino is used to change the rate at which the on-board LED flashes.
Parts Needed
1 × 10k potentiometer
Arduino Website Page
In the Arduino IDE
File → Examples → 3.Analog → AnalogInput
Building the Circuit
Connect the potentiometer as shown on the Arduino website AnalogInput page.
Programming and Operating the Circuit
Open the sketch in the Arduino IDE (File → Examples → 3.Analog → AnalogInput) and then upload it to the Arduino board.
As the shaft of the potentiometer is rotated, the rate at which the Arduino on board "L" LED flashes will change.
Project 7 Video
Can't see the video? View on YouTube →