C6 — Analogue outputs

The level 2 program used buttons to make a LED brighter and dimmer.

Change the program to use the potentiometer instead of the buttons. You will need to

• Get rid of the button code
• Read in the value from the potentiometer (using analogRead)
• Divide the value from the potentiometer by 4. This is because the maximum value of an analogue input is 1023, but the maximum value of an analogue output is 255.
• Use the divided value to set the brightness of the led.