 
 
 void loop(){ // draw a calibration box 4 times
+  while( digitalRead( SWITCH )){
+    digitalWrite( LED, !digitalRead(LED));
+    delay(200);
+  }
+  digitalWrite( LED, LOW );
   pendown();
   for(int x=0; x<12; x++){
     forward(100);

Servo penServo;

float wheel_dia=63; //    # mm (increase = spiral out)
float wheel_base=113; //    # mm (increase = spiral in, ccw) 
//int steps_rev=128; //        # 512 for 64x gearbox, 128 for 16x gearbox
int steps_rev=512;
int delay_time=2; //         # time between steps in ms

// Stepper sequence org->pink->blue->yel
int L_stepper_pins[] = {12, 10, 9, 11};
int R_stepper_pins[] = {4, 6, 7, 5};

// 
// add bp and led to start
// majorLee 5/3


#include <Servo.h>

