37 lines
1.3 KiB
Arduino
37 lines
1.3 KiB
Arduino
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/*
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SparkFun Inventor’s Kit
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Circuit 1B-Potentiometer
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Changes how fast an LED connected to pin 13 blinks, baed on a potentiometer connected to pin A0
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This sketch was written by SparkFun Electronics, with lots of help from the Arduino community.
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This code is completely free for any use.
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View circuit diagram and instructions at: https://learn.sparkfun.com/tutorials/sik-experiment-guide-for-arduino---v4
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Download drawings and code at: -- GITHUB LINK --
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*/
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int potPosition; //this variable will hold a value based on the position of the potentiometer
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void setup()
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{
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Serial.begin(9600); //start a serial connection with the computer
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pinMode(13, OUTPUT); //set pin 13 as an output that can be set to HIGH or LOW
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}
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void loop()
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{
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//read the position of the pot
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potPosition = analogRead(A0); //set potPosition to a number between 0 and 1023 based on how far the knob is turned
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Serial.println(potPosition); //print the value of potPosition in the serial monitor on the computer
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//change the LED blink speed based on the pot value
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digitalWrite(13, HIGH); // Turn on the LED
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delay(potPosition); // delay for as many miliseconds as potPosition (0-1023)
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digitalWrite(13, LOW); // Turn off the LED
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delay(potPosition); // delay for as many miliseconds as potPosition (0-1023)
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}
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