 int M3_on = 0;
 int M4_on = 0;
 
-unsigned counter = 0;
+unsigned long counter = 0;
 
 void loop() {
   int command;
-  if (millis() - counter > 100) {
+  if (millis() - counter > 10000) {
      counter = millis();
-     Serial.print(analogRead(5));
-     Serial.print(' ');
-     Serial.print(analogRead(4));
-     Serial.print(' ');
-     Serial.println(analogRead(3));
+     Serial.print   ("=A0 ");
+     Serial.println (analogRead(0));
+     Serial.print   ("=A1 ");
+     Serial.println (analogRead(1));
+     Serial.print   ("=A2 ");
+     Serial.println (analogRead(2));
   }
   if (Serial.available()) {
      command = Serial.read();

Adafruit_DCMotor *M3 = AFMS.getMotor(2);
Adafruit_DCMotor *M4 = AFMS.getMotor(1);

void setup() {
  Serial.begin(9600);           // set up Serial library at 9600 bps
  Serial.println("Arm OK!");
  Serial.print(analogRead(5));
  Serial.print(' ');
  Serial.print(analogRead(4));
  Serial.print(' ');
  Serial.println(analogRead(3));
  
  //AFMS.begin();  // create with the default frequency 1.6KHz
}

// ----- state ------
int speed = 100;

#include <Adafruit_MotorShield.h>
#include "utility/Adafruit_MS_PWMServoDriver.h"

Adafruit_MotorShield AFMS = Adafruit_MotorShield(0x62); 
Adafruit_DCMotor *M1 = AFMS.getMotor(4);
