max: upper bound of the random value, exclusive. Syntax random (max) random (min, max) Parameters min: lower bound of the random value, inclusive (optional). * and turn pins 13 and 11 on while keeping 12 off and wait for another half second. Description The random function generates pseudo-random numbers.
#ARDUINO RANDOM FUNCTION CODE#
* This code is the starting code for my functionExample, I want to turn pins 13, 12, 11 high wait for half a second turn all the pins off wait for half a second Note that this example assumes that some of the fundamental Arduino examples are already known. I will split up this post with the starting code for an example without any functions, convert the same program using a function, show an extended example of what one can do with functions, and compare to a version of that code without functions to show that fewer lines of code can make it easier to use. random () Beschreibung Die Zufallsfunktion generiert Pseudozufallszahlen. And these values will range from zero to one less than the upper bound: random (max) //return a random number between 0 to max-1 Calling random () with two parameters sets the lower and upper bounds.
Calling random () with a single parameter sets the upper bound. Yes, there is documentation on using a function, but one has to visit the Arduino website to try to use context and they don’t expand on their examples very well. In order to obtain a random number, we can use the low level esprandom function, which is defined here. The random function is used to return a random number. I decided to make my own example code for writing functions as it should be one of the basic examples in Arduino.
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