Hi,
I have a power issue with Romeo.
Romeo is powered using 7.6v LiPo battery and board it self seems to work fine, all 5v pins are showing that power is connected and PING sensor is working nicely. However no power is going to motors connected to both motor lines. If I attach a led to Motor control pins (4-7) I can see that pins go from High to low according result that I get from PING. Any advice what I could check?

[code]/*
OBJECT AVOIDING ROBOT CODE FOR ARDUINO - DFRduino RoMeo - PARALLAX PING)
THIS CODE IS FREE TO ANYONE THAT WISHES TO USE IT, MODIFY IT, OR STEAL IT IN GENERAL.
*/
int E1 = 5; //M1 Speed Control
int E2 = 6; //M2 Speed Control
int M1 = 4; //M1 Direction Control
int M2 = 7; //M2 Direction Control
int ultraSoundSignal = 10;
int ledPin = 13; // sets the indicator led to pin 13
unsigned long dist = 0;

// *************************** SETTING UP THE PROGRAM ***********************************
void Motor1(int pwm, boolean reverse)
{
analogWrite(E2,pwm); //set pwm control, 0 for stop, and 255 for maximum speed
if(reverse)
{
digitalWrite(M2,HIGH);
}
else
{
digitalWrite(M2,LOW);
}
}
void Motor2(int pwm, boolean reverse)
{
analogWrite(E1,pwm);
if(reverse)
{
digitalWrite(M1,HIGH);
}
else
{
digitalWrite(M1,LOW);
}
}
void setup()
{
int i; // for(i=6;i<=9;i++) //For Roboduino Motor Shield
// pinMode(i, OUTPUT);//set pin 6,7,8,9 to output mode
for(i=5;i<=8;i++) //For Arduino Motor Shield
pinMode(i, OUTPUT); //set pin 4,5,6,7 to output mode
Serial.begin(9600);
//motor.setSpeed(80); // sets motor 1 speed to 80
//motor2.setSpeed(80); // sets motor 2 speed to 80

pinMode(ultraSoundSignal, OUTPUT); // sets enable as output

straight(); // initializes go straight
}

// *************************** MAIN PROGRAM LOOPS ***********************************
void loop() {
distCalc();
avoidObjects();
delay(40);
Serial.println(dist); // ADDED TO APPEND DISTANCE TO SERIAL MONITOR SO I COULD SEE PROBLEMS..
delay(280);
}
// *************************** MAIN STRAIGHT ROUTINE ***********************************
void straight(){
//motor.run(FORWARD);
//motor2.run(FORWARD);
Motor1(90,true); //You can change the speed, such as Motor(80,true)
Motor2(90,true);

Serial.print("Forward"); // ADDED SO I COULD SEE PROBLEMS WITH SERIAL MONITOR
}
// *************************** MAIN TURNING ROUTINE ***********************************
void turnRight()
{
//motor.run(BACKWARD);
//motor2.run(FORWARD);
Motor1(80,false);
Motor2(80,true);
Serial.print("TurnRight"); // ADDED SO I COULD SEE PROBLEMS WITH SERIAL MONITOR
}
void turnLeft()
{
//motor.run(BACKWARD);
//motor2.run(FORWARD);
Motor1(80,true);
Motor2(80,false);
Serial.print("TurnLeft"); // ADDED SO I COULD SEE PROBLEMS WITH SERIAL MONITOR
}

// *************************** PING FUNCTIONS TO GET DISTANCES ***********************************
float distCalc() // distance calculating function converts analog input to inches
{
pinMode(ultraSoundSignal, OUTPUT); // Switch signalpin to output
digitalWrite(ultraSoundSignal, LOW); // Send low pulse
delayMicroseconds(2); // Wait for 2 microseconds
digitalWrite(ultraSoundSignal, HIGH); // Send high pulse
delayMicroseconds(5); // Wait for 5 microseconds
digitalWrite(ultraSoundSignal, LOW); // Holdoff
pinMode(ultraSoundSignal, INPUT); // Switch signalpin to input
digitalWrite(ultraSoundSignal, HIGH); // Turn on pullup resistor

unsigned long echo = pulseIn(ultraSoundSignal, HIGH); //Listen for echo
dist = (echo / 58.138) * 0.39; //convert to CM then to inches

return dist;
}

// *************************** THE AVOIDING OBJECTS ROUTINE ***********************************
void avoidObjects()
{
if(dist < 12) // if the distance is less than 12 inches
{
Serial.print("object detected closer than allowed!!!"); // ADDED SO I COULD SEE PROBLEMS WITH SERIAL MONITOR
digitalWrite(ledPin, HIGH); // turn on LED
turnRight(); // turns right using turnRight function
delay(40);
}
else // otherwise
{
digitalWrite(ledPin, LOW); //turn off LED
straight(); // go straight using the straight function
Serial.print(" continuing forward "); // ADDED SO I COULD SEE PROBLEMS WITH SERIAL MONITOR
}
}[/code]