Crawler

Description:
I worked with Kevin Lessard on this lab. We constructed a walker using two servo motors and just one Arduino. For the body we used a cell phone case and added legs (dowel rods), business cards as springs, and a battery as a counter weight. The dowel rods would lift the casing off the card and would allow the crawler to spring backwards.
Components:
Phone case
2 x dowel rods
Business cards
2 x  servos
1 x arduino
1 x breadboard
Rubberbands
Laptop
Usb cord
Que tips
staples
1 x battery
Code:
#include <Servo.h> 
 
Servo servoR;  // create servo object to control a servo 
Servo servoL;                // a maximum of eight servo objects can be created 
 
int posR1 = 180;    // variable to store the servo position 
int posL1 = 40;
 
int posR2;
int posL2;
 
int angle = 70;
int start = 0;
int pause = 500;
 
void setup() 
{ 
  servoR.attach(7);  // attaches the servo on pin 9 to the servo object 
  servoL.attach(8);
  Serial.begin(9600);
} 
 
 
void loop() 
  {                                 
   start = Serial.read();
   start = start - '0';
   
   if(start == 1){
    servoL.write(posL1);              
    servoR.write(posR1);
    delay(pause);
    
    posL2 = posL1 + angle;
    posR2 = posR1 - angle;
    
    servoL.write(posL2);             
    servoR.write(posR2);
    delay(pause);
    
    servoL.write(posL1);              
    servoR.write(posR1);
    //delay(1000);
   }
   
  }
Video:  https://drive.google.com/file/d/0B_zirL99HZRIMlNnaUdCYzVaODQ/edit?usp=sharing