Description:

I created the 3-pot LED control circuit and used the given code in the lab for controlling the brightness of each LED with each pot.

As an optional part, I created what I call a "Rainbow Maker" by using one pot to control the 3 LEDs so that it fades from red to green to blue to red.

Components used:

• red LED
• green LED
• blue LED
• 3 potentiometers
• 3 220 ohm resistors

Code:

One pot controls brightness, another pot controls blinking

Description: Use one pot to control a LED's brightness and the other to control its blinking speed.

Components Used: LED, Resistors, Potentiometers

Photo: Attached

Source Code: 

Previous setup from lab 2, + two potentiometers. 

Option1

Description:

Three potentiometers are wired in to 3 analog inputs on the arduino board. each pot controls the brightness of an LED. 

Materials

3 potentiometers

3 220 kohm resistors

plastic cup diffuser

1 green, blue, red LED

Code (used the example code for 3 pots, 3LEDs)

Description

Create an interesting control of RGB LEDs via 3 potentiometers. After controlling each LED separately from each pot, I decided it would be interesting to try to control Hue, Saturation, and Brightness, then convert to RGB for LED output. I used this code to convert from HSB to RGB. I found the saturation control to be somewhat ineffective, since for better color display, usually amber and white LEDs are used, and this setup only has RGB.