power from battery pack problem- DFRobot Forum

2011-11-10 23:59:54 thanks for your help :))

emm Hector i've problem with this program
why the command "turn left" is not working altought compiling successed

const int sensorPin = 2;
const int ledPin = 13;
const int sensorpin = 3;
int E1 = 5;
int E2 = 6;
int M1 = 4;
int M2 = 7;

// variables will change:
int sensorValuee = 0; // variable for reading the pushbutton status
int sensorValue = 0;
void setup() {
// initialize the LED pin as an output:
pinMode(ledPin, OUTPUT);
// initialize the sensor pin as an input:
pinMode(sensorPin, INPUT);
pinMode(sensorpin, INPUT);
// initialize the motor pin as an output:
pinMode(E1, OUTPUT);
pinMode(E2, OUTPUT);
pinMode(M2, OUTPUT);
pinMode(M1, OUTPUT);
}

void loop(){
// read the state of the sensor value:
sensorValue = digitalRead(sensorPin);
sensorValuee = digitalRead(sensorpin);

[glow=red,2,300]if (sensorValue == HIGH && sensorValuee == LOW) {
// turn left robot:
digitalWrite(ledPin, HIGH);
digitalWrite(E1, HIGH);
digitalWrite(E2,HIGH);
digitalWrite(M2,HIGH);
digitalWrite(M1,HIGH);[/glow]

}

if (sensorValue == HIGH && sensorValuee == HIGH) {
// move forward :
digitalWrite(ledPin, HIGH);
digitalWrite(E1, HIGH);
digitalWrite(E2,HIGH);
digitalWrite(M2,LOW);
digitalWrite(M1,HIGH);

}
else {
// motor off:
digitalWrite(ledPin, LOW);
digitalWrite(E1,LOW);
digitalWrite(E2,LOW);

}
}

apriansyahrizal

2011-11-10 17:57:57 I'm glad you were able to fix the Romeo.

Here is some sample code for a DIFFERENT robot, but if you study the code you might be able to take parts from it and modify it to fit your needs.

[code]

// DFRobot.com
// MiniQ Sample Code
// Line tracking
// Version 1.0
// Last updated on 10th March 2011

# Define EN1 6 // Right Motor Enable Pin
# Define IN1 7 // Right Motor Direction Pin
# Define EN2 5 // Left Motor Enable Pin
# Define IN2 4 // Left Motor Direction Pin

# Define FORW 1 // Forward
# Define BACK 0 // Backward

# Define BUZZER 11 // control the number of IO pins buzzer
# Define LED_RED 12 // red LED lights control digital IO pins
# Define LED_GREEN 13 // green LED lights control digital IO pins
# Define Vr 5 // reference voltage

float data [8] = {
0X00, 0X00, 0X00, 0X00, 0x00, 0xff, 0x00, 0x00}; // store the 8-channel ad conversion value
unsigned char value [5] = {
0x00, 0x00, 0x00, 0x00, 0x00}; // five hunt voltage sensor
unsigned char key_1 = 0x00; // number of keys pressed to count 1

void Motor_Control (int M1_DIR, int M1_EN, int M2_DIR, int M2_EN) // Motor control function
{
////////// M1 ////////////////////////
if (M1_DIR == FORW) // Set M1 Motor Direction
digitalWrite (IN1, HIGH); // HIGH, Rotate clockwise
else
digitalWrite (IN1, LOW); // LOW, Anti Rotate clockwise
if (M1_EN == 0) // M1 Motor Speed
analogWrite (EN1, LOW); // Low to stop miniQ
else
analogWrite (EN1, M1_EN);

/////////// M2 //////////////////////
if (M2_DIR == FORW) // Set M2 Motor Direction
digitalWrite (IN2, HIGH); // HIGH, Rotate clockwise
else
digitalWrite (IN2, LOW); // LOW, Anti Rotate clockwise
if (M2_EN == 0) // M2 Motor Speed
analogWrite (EN2, LOW); // Low to stop miniQ
else
analogWrite (EN2, M2_EN);
}

void Read_Value (void) // read analog value
{
char i;
for (i = 0; i <8; i + +)
{
data [i] = analogRead (i); // read analog port voltage i
data = ((data * Vr) / 1024); // convert the analog value
}
huntline_deal ();// call subroutine hunt deal
}
void huntline_deal (void) // Hunt
{
if (key_1 == 6)
{
if (data [0]> (value [0] -1) & & data [1]> (value [1] -1) & & data [2] <(value [2] -1) & & data [3]> (value [3 ] -1) & & data [7]> (value [4] -1)) // look at the actual measured value
{
Motor_Control (FORW, 100, FORW, 100); // forward
}
else if (data [0]> (value [0] -1) & & data [1]> (value [1] -1) & & data [2] <(value [2] -1) & & data [3] <(value [ 3] -1) & & data [7]> (value [4] -1))
{
Motor_Control (BACK, 50, FORW, 100); // turn right
}
else if (data [0]> (value [0] -1) & & data [1]> (value [1] -1) & & data [2]> (value [2] -1) & & data [3] <(value [ 3] -1) & & data [7]> (value [4] -1))
{
Motor_Control (BACK, 100, FORW, 100); // fast right turn
}
else if (data [0]> (value [0] -1) & & data [1]> (value [1] -1) & & data [2]> (value [2] -1) & & data [3] <(value [ 3] -1) & & data [7] <(value [4] -1))
{
Motor_Control (BACK, 100, FORW, 100); // fast right turn
}
else if (data [0]> (value [0] -1) & & data [1]> (value [1] -1) & & data [2]> (value [2] -1) & & data [3]> (value [ 3] -1) & & data [7] <(value [4] -1))
{
Motor_Control (BACK, 100, FORW, 100); // fast right turn
}
else if (data [0]> (value [0] -1) & & data [1] <(value [1] -1) & & data [2] <(value [2] -1) & & data [3]> (value [ 3] -1) & & data [7]> (value [4] -1))
{
Motor_Control (FORW, 100, BACK, 50); // left
}
else if (data [0]> (value [0] -1) & & data [1] <(value [1] -1) & & data [2]> (value [2] -1) & & data [3]> (value [ 3] -1) & & data [7]> (value [4] -1))
{
Motor_Control (FORW, 100, BACK, 100); // fast turn left
}
else if (data [0] <(value [0] -1) & & data [1] <(value [1] -1) & & data [2]> (value [2] -1) & & data [3]> (value [ 3] -1) & & data [7]> (value [4] -1))
{
Motor_Control (FORW, 100, BACK, 100); // fast turn left
}
else if (data [0] <(value [0] -1) & & data [1]> (value [1] -1) & & data [2]> (value [2] -1) & & data [3]> (value [ 3] -1) & & data [7]> (value [4] -1))
{
Motor_Control (FORW, 100, BACK, 100); // fast turn left
}
}
}
void key_scan (void) // Scan button
{
if (data [5]> 4.50 & & data [5] <6.00) // no button is pressed
return; // return
else
{
if (data [5]> = 0.00 & & data [5] <0.50) // Button 1 press
{
delay (180); // debounce delay
if (data [5]> = 0.00 & & data [5] <0.50) // press button 1 does
{
buzzer buzzer ();//
key_1 ++;// key 1 count
if (key_1> = 1 & & key_1 <= 5) value_adjust (key_1); // value of the sensor to adjust the hunt
if (key_1 == 6)
{
digitalWrite (LED_RED, LOW); // red light off
digitalWrite (LED_GREEN, LOW); // Green OFF
}
}
}
else if (data [5]> = 0.50 & & data [5] <2.00)
{
delay (180); // debounce delay
if (data [5]> = 0.50 & & data [5] <2.00)
{
if (key_1> = 1 & & key_1 <= 5) // if the key key1 value between 1 to 5
{
buzzer buzzer ();//
value [key_1-1 ]++;// sensor tracks threshold to distinguish Gaga (adjusted)
value_adjust (key_1); // actual value comparison with
}
}
}
else if (data [5]> = 2.00 & & data [5] <3.00)
{
delay (180); // debounce delay
if (data [5]> = 2.00 & & data [5] <3.00)
{
if (key_1> = 1 & & key_1 <= 5) // If the key key1 value between 1 to 5
{
buzzer buzzer ();//
value [key_1-1 ]--;// sensor tracks threshold resolution and reduction (adjusted)
value_adjust (key_1); // actual value comparison with
}
}
}
}
}
void value_adjust (unsigned char num) // adjust the sensor values ??hunt
{
if (num == 1) // adjust the sensor first hunt
{
if (data [0]> value [0])
{
digitalWrite (LED_RED, HIGH); // the current value of the red light
digitalWrite (LED_GREEN, LOW);
}
else
{
digitalWrite (LED_RED, LOW);
digitalWrite (LED_GREEN, HIGH); // green light
}
}
if (num == 2) // adjust the sensor the second hunt
{
if (data [1]> value [1])
{
digitalWrite (LED_RED, HIGH); // the current value of the red light
digitalWrite (LED_GREEN, LOW);
}
else
{
digitalWrite (LED_RED, LOW);
digitalWrite (LED_GREEN, HIGH); // green light
}
}
if (num == 3) // adjust the third hunt sensor
{
if (data [2]> value [2])
{
digitalWrite (LED_RED, HIGH); // the current value of the red light
digitalWrite (LED_GREEN, LOW);
}
else
{
digitalWrite (LED_RED, LOW);
digitalWrite (LED_GREEN, HIGH); // green light
}
}
if (num == 4) // adjust the sensor fourth hunt
{
if (data [3]> value [3])
{
digitalWrite (LED_RED, HIGH); // the current value of the red light
digitalWrite (LED_GREEN, LOW);
}
else
{
digitalWrite (LED_RED, LOW);
digitalWrite (LED_GREEN, HIGH); // green light
}
}
if (num == 5) // adjust the sensor fifth hunt
{
if (data [4]> value [4])
{
digitalWrite (LED_RED, HIGH); // the current value of the red light
digitalWrite (LED_GREEN, LOW);
}
else
{
digitalWrite (LED_RED, LOW);
digitalWrite (LED_GREEN, HIGH); // green light
}
}
}
void buzzer (void) // send a buzzer sound
{
digitalWrite (BUZZER, HIGH); // set high, the buzzer
delay (1);
digitalWrite (BUZZER, LOW); // set low, the buzzer did not ring
delay (10);
}
void setup ()
{
char i;
for (i = 4; i <= 7; i ++)// set the port to connect two sets of motor output mode
{
pinMode (i, OUTPUT);
}
pinMode (BUZZER, OUTPUT); // Set the number of IO pins control the buzzer mode, OUTPUT is the output
pinMode (LED_RED, OUTPUT); // set the red LED light control digital IO pin mode, OUTPUT is the output
pinMode (LED_GREEN, OUTPUT); // green LED setting controls the number of IO pin mode, OUTPUT is the output
}
void loop ()
{
Motor_Control (FORW, 0, FORW, 0); // car stop
while (1)
{
Read_Value ();// read the value of analog port
key_scan ();// scan button
}
}
[/code]

This code if for the miniQ robot, there are more example codes in the [url=https://www.dfrobot.com/wiki/index.php?title=4WD_MiniQ_Complete_Kit_(SKU:ROB0050)]wiki for miniQ[/url]

I think the parts you have should be enough to get you started. Hector

2011-11-10 16:58:04 oh i've replacing it and fix it,, thank you hector :)

by the way
could you help me
i want to create some simply line follower robot,, using 2 linetracker sensor and 1 arduino romeo
are there enough to create the robot?
what i must prepare ?

[i]sorry for my english[/i]
apriansyahrizal

2011-11-09 18:14:28 Did you test the voltage of both the voltage regulators? If one of the voltage regulators is damaged you might be able to fix it by replacing it.

Hector

2011-11-09 15:48:16 [quote="Hector"]
Hi Nicolas,

I think the best solution would be to replace the voltage regulator. But if you choose to, you can short the 5V to Vin in the picture below. You can do this to test it, and if it works you can decide to replace the regulator.
The regulator model no. is: LM2940

A word of caution: Make sure not to supply more than 5V as this could permanently damage your Romeo.

[img]https://www.dfrobot.com/image/data/DFR0004/Romeo_remark.PNG[/img]

Also, you do this at your own risk.
[/quote]
ohh
i supply the romeo from the RC battery pack 7.4 V 1400mAh

what component i must change ?
capacitor?
apriansyahrizal

2011-11-08 17:52:34 If you were able to control the Romeo before, and now you can not, it maybe that you have damaged one of the voltage regulators.

Please tell me how much voltage and current you supplied to your Romeo?

to determine if the voltage regulator is damaged you need to supply voltage and test the regulator.

Please have a look at this topic: [url=https://www.dfrobot.com/forum/index.php?topic=190.msg716#msg716]Romeo power problem[/url] Hector

2011-11-08 04:31:05 after I upload the program, the 2WD robot to shake Suddenly,, and then I immediately disconnect power

then after that I tried to connect the power again it can not be ON

ussually PWR LED is lights when i connect the power supply from the M_VIN

what should i do hector T.T
now i just can powered my arduino from the usb ??
anything can i do to repair my arduino??

int pin = 13;
int E1 = 5;
int E2 = 6;
int M1 = 4;
int M2 = 7;

void setup()
{
pinMode(pin, OUTPUT);
pinMode(E1, OUTPUT);
pinMode(E2, OUTPUT);
pinMode(M1, OUTPUT);
pinMode(M2, OUTPUT);
}

void loop()
{
dot(); dot(); dot();
dash(); dash(); dash();
dot(); dot(); dot();
delay(3000);
}

void dot()
{
digitalWrite(pin, HIGH);
delay(250);
digitalWrite(pin, LOW);
delay(250);
digitalWrite(E1, HIGH);
digitalWrite(E2, HIGH);
digitalWrite(M1, LOW);
digitalWrite(M2, HIGH);
delay(250);

}

void dash()
{
digitalWrite(pin, HIGH);
delay(1000);
digitalWrite(pin, LOW);
delay(250);
digitalWrite(E1, HIGH);
digitalWrite(E2, HIGH);
digitalWrite(M1, HIGH);
digitalWrite(M2, LOW);
delay(250);
} apriansyahrizal

2011-11-07 18:23:36 Could you give us more details about your problem?

How much voltage and current?
Could you post the sample code you are using?

If you will only provide power using 1 battery, then you need to set the jumper VIN=M_VIN on. This will provide power to the motors and the Arduino. If you remove this jumper then you should provide battery power to the motors and provide a separate power to the Arduino either through usb, or Vin.

What have you done differently, from when it was working to now? What did you change? Hector

2011-11-07 01:41:36 [i]sory for my english[/i] apriansyahrizal

2011-11-07 01:01:02 dear admin
please help me
i have bought DFRduino Romeo V1.0
i can run all program with my motor DC in the beginning, but now i dont know why my arduino romeo could not get the power from the battey pack, (jumper VIN=M_VIN ON both OFF)

what should i do please apriansyahrizal