# makersylvia/strobe

### Subversion checkout URL

You can clone with
or
.
Fetching contributors…

Cannot retrieve contributors at this time

46 lines (33 sloc) 2.047 kB
 // Gray text with two slashes are just helpful comments, you don’t need to type them. :) /******* -----=====!! EASY STUFF TO MESS WITH !!=====------ ******/ // What analog pin should we use to read the value from the potentiometer? int analogPin = 2; // Yep, you heard right: The coolest of the Analog pins... // What pin is the LED connected to? int ledPin = 13; // Contains a built in resistor! // How much time should the light stay on between delays, in Microseconds (millionths of a second)? /* Big number = more blur, more perceived brightness * Small number = less blur, less perceived brightness */ long onTime = 250; // What should the minimum delay be in milliseconds (thousandths of a second)? // This sets the bottom delay range of the strobe, as a delay of 0 doesn't actually flash =P // The strobe starts with this as the "fastest" mode, and goes slower from there, adding to the delay int minDelay = 1; // 1 is the lowest we can actually do without a better delay function // What should the maximum delay be in milliseconds? // This is the longest time that the biggest potentiometer value will be mapped to, and longest // time between strobe flashes. int maxDelay = 100; /******* -----=====^^ EASY STUFF TO MESS WITH ^^=====------ ******/ // Initialize the number to hold our strobe delay. Isn't used till we get to the main loop long strobe_delay = 0; void setup() { pinMode(ledPin, OUTPUT); // Setup ledPin as an output. } void loop() { // To make the math easier, we use map(value, fromMin, fromMax, toMin, toMax) to convert the // 0 to 1023 range we get from analogRead, into our strobe delay range of 1 to 100 :D strobeDelay = map(analogRead(analogPin), 0, 1023, minDelay, maxDelay); digitalWrite(ledPin, HIGH); // Switch the ledPin to HIGH, turn it on! delayMicroseconds(onTime); // Delay while on, for the given onTime. digitalWrite(ledPin, LOW); // Switch the ledPin to LOW, turn if off! delay(strobeDelay); // Delay while off, for given strobeDelay. }
Something went wrong with that request. Please try again.