Resistor Color Code Calculator with Arduino

This is a 4 band Mechanical Color Code Resistor Calculator, The idea of making this Mechanical Resistor came when I accidentally dropped my box of resistors and all resistors (1300 of them) got mixed up. ooops! . Thank god there's an APP  for that, So while picking them up (the resistors) and soaring them out I was thinking, how cool would it be to have a big resistor that you can actually manually rotate the bands and get the resistor value right away.  If you are into electronics and you are really passionate about it like me, you're always looking for projects and challenges to take on all the time. So, with that idea and a vision in mind I started working  on my new project, of course  with the help of Arduino UNO microcontroller.
HOW DOES IT WORKS?
There are 4 small stepper motors , 4 stepper motor drivers, 4 10K potentiometers and 2 Arduino UNO on a breadboard. As you turn the potentiometer,  the motors rotate displaying a color and a value at the same time.
SP = www.sparkfun.com ,  YD = www.yourduno.com , J = www.jameco.com , HP = Home Depot
ARDUINO UNO  ON A BREADBOARD COMPONENTS LIST                ( J )
At Mega 328p with arduino UNO boot loader                    
5v Voltage Regulator 7805-T   
LED  (2 red ) and (2 green)   
resistor 1/4 w, 10k and 180 ohms  
Radial Capacitor 10uf 50v   
Ceramic Capacitor disc 22pf 50v  
ceramic Capacitor disc 0.1uf 50v  
Tantalum Capacitor 10uf 25v   
16Mhz Crystal low-profile   
Pushbutton switch, off/on   
Stepper Motor with driver board                                        (YD)
Blue LED light                                                                   (YD)
Panel mount LED holder 5mm                                          (YD)
DPDT On /OFF switch                                                      (YD)
10k small Potentiometer                                                    (YD)
10k Potentiometer chicken head Knob                              (SP)
9v Battery holder (Pack of two)                                         (YD)
9v Battery                                                                          (YD)
6v, AA Battery case                                                          (YD)   
AA Battery (pack of 4)                                                       (YD)
40pin flat cable female ends                                             (YD)  
Breadboard jumper kit                                                       (YD)
Breadboard 16cm with power and Grd busses                 (YD)
Breadboard 8cm with power and Grd busses                  (YD)
Mini Digital Voltmeter 0-30v dc (red)                                (YD)
Hook-up wire, solid (black, Red & Green)                        (SP)
solder tube .031 Inch Dia.                                                 (SP)
Liquid Tape 4FL. OZ                                                        (HD)
Servo Mounts                                                                   (SP)
Screw-Phillips head (1/2", 4-40, 10-pack)                       (SP)
Nut metal (4-40, 10-pack)                                               (SP)
wood screws #6 x 3/4" pan head Phillips                 (HD)
11/32", 2' x 2' Plywood sheet                                    (HD)
MINWAX wood finish stain (provincial 211)             (HD)  
Primer spray paint                                                    (HD)
Gold spray paint                                                       (HD)
1/8" Plexiglas 11" x 14"                                             (HD)    
Compressed wood                                                   (HD)
Narrow utility hinges 1"                                            (HD)
1/2" x 2' PVC pipe                                                     (HD)
1/2" PVC 90* elbow                                                  (HD)
1/2" PVC coupling                                                      (HD)
2" PVC pipe Blocker                                                  (HD)
2" x 2' PVC pipe                                                        (HD)
3" PVC pipe Blocker                                                   (HD)
3" x 2' PVC pipe                                                         (HD)
Nailed metal bridging                                                  (HD)
4" (10cm) Cable Ties                                                   (HD)

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