Documentation - Arduino

Arduino Reference Sheet

delay(value): waits a noted amount of time before moving on to following commands

digitalWrite(variable, setting): sets a component to on (HIGH) or off (LOW)

digitalRead(variable): returns the value of a noted component, either HIGH or LOW

analogWrite(variable, value): sets a component to a certain value from 0-255

analogRead(variable): returns the value of a noted component, a number 0-255

int variable = value: creates an integer variable and assigns it a value

void function(){}: defines a function as the commands found between the curly braces that will not return a value

function: name of the function, written in camelCase
To call the function, simply write the function name and a set of parentheses, ie. myFunction();
Parameters can be included in the parentheses

int function(){}: defines a function as the commands found between the curly braces that will return an integer

function: name of the function, written in camelCase
To call the function, simply write the function name and a set of parentheses, ie. myFunction();
Parameters can be included in the parentheses

if (condition) {
    commands;
}
else if (condition) {
    commands;
}
else {
    commands;
}

Example:

    if (digitalRead(button) == HIGH) {
        digitalWrite(motor, HIGH);
    }
    else {
        digitalWrite(motor, LOW);
    }

digitalRead(component): returns the digital value of a component as 1 (on) or 0 (off)

analogRead(component): returns the analog value of a component

for (initialization; condition; increment) {
    commands;
}

Example:

    for (int i = 0; i < 4; i++) {
        analogWrite(redLED, count);
        count+=50;
    }

while (condition) {
    commands;
}

Example:

    while (digitalRead(button) == LOW) {
        digitalWrite(redLED, HIGH);
    }
    digitalWrite(redLED, LOW);