Shifting code from PICAXE to Arduino

Projects Programming
11

So, you need to find out how to read an analogue sensor, how to compare the value returned to some constants and how to turn on LEDs

Here is an outline

declare global variables such as sensible names for pins

start of setup()
  set the pinModes() for the pins
  start the Serial interface to allow debug messages to be output if required
end of setup()

start of loop()
  read value from sensor
  if value less than 449
    turn on green LED
  else
  if value is less than 471
    turn on the yellow LED
  else
  if value is greater than 470 (flaw in the logic here based on your description)
    turn on the red LED
  end if
end of loop()

What conditions turn the LEDs off ?