//Arduino functions

Digital I/O:
pinMode()
digitalRead()
digitalWrite()

Analog I/O:
analogRead()
analogWrite()

Time:
millis()
micros()
delay()
delayMicroseconds()

Math:
min()
max()
abs()
constrain()
map()
pow()
sqrt()

Trigonometry:
sin()
cos()
tan()

Random Numbers:
randomSeed()
random()

Interrupts:
attachInterrupt()
detachInterrupts()

Serial:
begin()
end()
available()
read()
peek()
flush()
print()
println()
write()

Bit&Bytes:
lowByte()
highByte()
bitRead()
bitWrite()
bitSet()
bitClear()
bit()

lcd:
lcd.begin()
lcd.begin(16,2)
lcd.setCursor()
lcd.setCursor(0,1)
lcd.print()
lcd.print("Hello           ")
//Clears the LCD screen and positions the cursor in the upper-left corner. 
lcd.clear() 
lcd.display()
lcd.noDisplay()
// Turn off the blinking cursor:
lcd.noBlink();
// Turn on the blinking cursor:
lcd.blink();
// set the display to automatically scroll:
lcd.autoscroll();
// turn off automatic scrolling
lcd.noAutoscroll();