Anyone please help me

Using Arduino Programming Questions
1

POV Display code

int delayTime = 2; 
int charBreak = 5; 

int LED0 = 4;
int LED1 = 5;
int LED2 = 6;
int LED3 = 7;
int LED4 = 8;
int LED5 = 9;
int LED6 = 10;
int LED7 = 11;
int LED8 = 12;
int LED9 = 13;

void setup()
{
  pinMode(LED0, OUTPUT);
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(LED4, OUTPUT);
  pinMode(LED5, OUTPUT);
  pinMode(LED6, OUTPUT);
  pinMode(LED7, OUTPUT);
  pinMode(LED8, OUTPUT);
  pinMode(LED9, OUTPUT);  
}

int a[] = {7,31,248,216,792,792,216,248,31,7};
int b[] = {1023,1023,819,819,478,478,0,0,0,0};
int c2[] = {120,510,390,771,771,771,462,204,0,0};
int d[] = {1023,1023,771,771,390,510,120,0,0,0};
int e[] = {1023,1023,819,819,819,771,771,0,0,0};
int f[] = {1023,1023,816,816,816,768,768,0,0,0};
int g[] = {0,252,510,903,771,795,927,414,24,0};
int h[] = {1023,1023,48,48,48,1023,1023,0,0,0};
int i[] = {771,771,1023,1023,771,771,0,0,0,0};
int j[] = {771,771,1023,1023,768,768,0,0,0,0};
int k[] = {1023,1023,120,204,390,771,513,0,0,0};
int l[] = {1023,1023,3,3,3,3,0,0,0,0};
int m[] = {1023,1023,448,224,56,56,224,448,1023,1023};
int n[] = {1023,1023,448,224,56,28,1023,1023,0,0};
int o[] = {120,252,390,771,771,771,390,252,120,0};
int p[] = {1023,1023,816,816,480,480,0,0,0,0};
int q[] = {120,510,390,771,795,414,510,126,6,0};
int r[] = {1023,1023,816,824,510,199,3,0,0,0};
int s[] = {230,502,947,819,926,396,0,0,0,0};
int t[] = {768,768,768,1023,1023,768,768,768,0,0};
int u[] = {1016,1022,6,3,3,3,6,1022,1016,0};
int v[] = {768,960,240,60,15,15,60,240,960,768};
int w[] = {240,254,7,62,112,62,7,254,240,0};
int x[] = {771,903,462,252,120,120,252,462,903,771};
int y[] = {771,903,462,252,120,112,224,448,896,768};
int z[] = {775,783,799,827,883,995,963,899,0,0};

int eos[] = {3,3,0,0,0,0,0,0,0,0};
int excl[] = {448,1019,1019,448,0,0,0,0,0,0};
int ques[] = {192,448,768,795,795,816,480,192,0,0};

void displayLine(int line)
{
  int myline;
  myline = line;
  if (myline>=512)  {digitalWrite(LED0, HIGH); myline-=512;}  else {digitalWrite(LED0, LOW);}
  if (myline>=256)  {digitalWrite(LED1, HIGH); myline-=256;}  else {digitalWrite(LED1, LOW);}
  if (myline>=128)  {digitalWrite(LED2, HIGH); myline-=128;}  else {digitalWrite(LED2, LOW);}
  if (myline>=64)   {digitalWrite(LED3, HIGH); myline-=64;}   else {digitalWrite(LED3, LOW);}
  if (myline>=32)   {digitalWrite(LED4, HIGH); myline-=32;}   else {digitalWrite(LED4, LOW);}    
  if (myline>=16)   {digitalWrite(LED5, HIGH); myline-=16;}   else {digitalWrite(LED5, LOW);}
  if (myline>=8)    {digitalWrite(LED6, HIGH); myline-=8;}    else {digitalWrite(LED6, LOW);}
  if (myline>=4)    {digitalWrite(LED7, HIGH); myline-=4;}    else {digitalWrite(LED7, LOW);}
  if (myline>=2)    {digitalWrite(LED8, HIGH); myline-=2;}    else {digitalWrite(LED8, LOW);}
  if (myline>=1)    {digitalWrite(LED9, HIGH); myline-=1;}    else {digitalWrite(LED9, LOW);}  
}

void displayChar(char c)
{
  if (c == 'a'){for (int i = 0; i <10; i++){displayLine(a[i]);delay(delayTime);}displayLine(0);}
  if (c == 'b'){for (int i = 0; i <10; i++){displayLine(b[i]);delay(delayTime);}displayLine(0);}
  if (c == 'c'){for (int i = 0; i <10; i++){displayLine(c2[i]);delay(delayTime);}displayLine(0);}
  if (c == 'd'){for (int i = 0; i <10; i++){displayLine(d[i]);delay(delayTime);}displayLine(0);}
  if (c == 'e'){for (int i = 0; i <10; i++){displayLine(e[i]);delay(delayTime);}displayLine(0);}
  if (c == 'f'){for (int i = 0; i <10; i++){displayLine(f[i]);delay(delayTime);}displayLine(0);}
  if (c == 'g'){for (int i = 0; i <10; i++){displayLine(g[i]);delay(delayTime);}displayLine(0);}
  if (c == 'h'){for (int i = 0; i <10; i++){displayLine(h[i]);delay(delayTime);}displayLine(0);}  
  if (c == 'i'){for (int it = 0; it <10; it++){displayLine(i[it]);delay(delayTime);}displayLine(0);}
  if (c == 'j'){for (int i = 0; i <10; i++){displayLine(j[i]);delay(delayTime);}displayLine(0);}
  if (c == 'k'){for (int i = 0; i <10; i++){displayLine(k[i]);delay(delayTime);}displayLine(0);}
  if (c == 'l'){for (int i = 0; i <10; i++){displayLine(l[i]);delay(delayTime);}displayLine(0);}
  if (c == 'm'){for (int i = 0; i <10; i++){displayLine(m[i]);delay(delayTime);}displayLine(0);}
  if (c == 'n'){for (int i = 0; i <10; i++){displayLine(n[i]);delay(delayTime);}displayLine(0);}
  if (c == 'o'){for (int i = 0; i <10; i++){displayLine(o[i]);delay(delayTime);}displayLine(0);}
  if (c == 'p'){for (int i = 0; i <10; i++){displayLine(p[i]);delay(delayTime);}displayLine(0);}
  if (c == 'q'){for (int i = 0; i <10; i++){displayLine(q[i]);delay(delayTime);}displayLine(0);}
  if (c == 'r'){for (int i = 0; i <10; i++){displayLine(r[i]);delay(delayTime);}displayLine(0);}
  if (c == 's'){for (int i = 0; i <10; i++){displayLine(s[i]);delay(delayTime);}displayLine(0);}
  if (c == 't'){for (int i = 0; i <10; i++){displayLine(t[i]);delay(delayTime);}displayLine(0);}
  if (c == 'u'){for (int i = 0; i <10; i++){displayLine(u[i]);delay(delayTime);}displayLine(0);}
  if (c == 'v'){for (int i = 0; i <10; i++){displayLine(v[i]);delay(delayTime);}displayLine(0);}
  if (c == 'w'){for (int i = 0; i <10; i++){displayLine(w[i]);delay(delayTime);}displayLine(0);}
  if (c == 'x'){for (int i = 0; i <10; i++){displayLine(x[i]);delay(delayTime);}displayLine(0);}
  if (c == 'y'){for (int i = 0; i <10; i++){displayLine(y[i]);delay(delayTime);}displayLine(0);}
  if (c == 'z'){for (int i = 0; i <10; i++){displayLine(z[i]);delay(delayTime);}displayLine(0);}
  if (c == '!'){for (int i = 0; i <10; i++){displayLine(excl[i]);delay(delayTime);}displayLine(0);}
  if (c == '?'){for (int i = 0; i <10; i++){displayLine(ques[i]);delay(delayTime);}displayLine(0);}
  if (c == '.'){for (int i = 0; i <10; i++){displayLine(eos[i]);delay(delayTime);}displayLine(0);}
  delay(charBreak);
}

void displayString(char* s)
{
  for (int i = 0; i<=strlen(s); i++)
  {
    displayChar(s[i]);
  }
}

void loop()
{
  charBreak=1;
  {
    for (int i=0;i<=100;i++)
    displayString("..hello.");
  }
}

Motor DC Code

int motorPin = 3;

void setup(){
  Serial.begin(9600);
  pinMode(motorPin,OUTPUT);
}

void loop()
{
  if (Serial.available()) {
     delay(50);
     if((Serial.read())=='1')
     {
        if(digitalRead(motorPin)==LOW)
        {
          digitalWrite(motorPin,HIGH);
          Serial.println("Turned ON!");
        }
        else
        {
          digitalWrite(motorPin,LOW);
          Serial.println("Turned OFF!");
        }
     }
  }
}

Can this script be combined into one.
Please help me =(

2 
int delayTime = 2; 
int charBreak = 5; 

int motorPin = 3;

int LED0 = 4;
int LED1 = 5;
int LED2 = 6;
int LED3 = 7;
int LED4 = 8;
int LED5 = 9;
int LED6 = 10;
int LED7 = 11;
int LED8 = 12;
int LED9 = 13;

void setup()
{
  pinMode(LED0, OUTPUT);
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(LED4, OUTPUT);
  pinMode(LED5, OUTPUT);
  pinMode(LED6, OUTPUT);
  pinMode(LED7, OUTPUT);
  pinMode(LED8, OUTPUT);
  pinMode(LED9, OUTPUT);  
  
    Serial.begin(9600);
  pinMode(motorPin,OUTPUT);
}

int a[] = {7,31,248,216,792,792,216,248,31,7};
int b[] = {1023,1023,819,819,478,478,0,0,0,0};
int c2[] = {120,510,390,771,771,771,462,204,0,0};
int d[] = {1023,1023,771,771,390,510,120,0,0,0};
int e[] = {1023,1023,819,819,819,771,771,0,0,0};
int f[] = {1023,1023,816,816,816,768,768,0,0,0};
int g[] = {0,252,510,903,771,795,927,414,24,0};
int h[] = {1023,1023,48,48,48,1023,1023,0,0,0};
int i[] = {771,771,1023,1023,771,771,0,0,0,0};
int j[] = {771,771,1023,1023,768,768,0,0,0,0};
int k[] = {1023,1023,120,204,390,771,513,0,0,0};
int l[] = {1023,1023,3,3,3,3,0,0,0,0};
int m[] = {1023,1023,448,224,56,56,224,448,1023,1023};
int n[] = {1023,1023,448,224,56,28,1023,1023,0,0};
int o[] = {120,252,390,771,771,771,390,252,120,0};
int p[] = {1023,1023,816,816,480,480,0,0,0,0};
int q[] = {120,510,390,771,795,414,510,126,6,0};
int r[] = {1023,1023,816,824,510,199,3,0,0,0};
int s[] = {230,502,947,819,926,396,0,0,0,0};
int t[] = {768,768,768,1023,1023,768,768,768,0,0};
int u[] = {1016,1022,6,3,3,3,6,1022,1016,0};
int v[] = {768,960,240,60,15,15,60,240,960,768};
int w[] = {240,254,7,62,112,62,7,254,240,0};
int x[] = {771,903,462,252,120,120,252,462,903,771};
int y[] = {771,903,462,252,120,112,224,448,896,768};
int z[] = {775,783,799,827,883,995,963,899,0,0};

int eos[] = {3,3,0,0,0,0,0,0,0,0};
int excl[] = {448,1019,1019,448,0,0,0,0,0,0};
int ques[] = {192,448,768,795,795,816,480,192,0,0};

void displayLine(int line)
{
  int myline;
  myline = line;
  if (myline>=512)  {digitalWrite(LED0, HIGH); myline-=512;}  else {digitalWrite(LED0, LOW);}
  if (myline>=256)  {digitalWrite(LED1, HIGH); myline-=256;}  else {digitalWrite(LED1, LOW);}
  if (myline>=128)  {digitalWrite(LED2, HIGH); myline-=128;}  else {digitalWrite(LED2, LOW);}
  if (myline>=64)   {digitalWrite(LED3, HIGH); myline-=64;}   else {digitalWrite(LED3, LOW);}
  if (myline>=32)   {digitalWrite(LED4, HIGH); myline-=32;}   else {digitalWrite(LED4, LOW);}    
  if (myline>=16)   {digitalWrite(LED5, HIGH); myline-=16;}   else {digitalWrite(LED5, LOW);}
  if (myline>=8)    {digitalWrite(LED6, HIGH); myline-=8;}    else {digitalWrite(LED6, LOW);}
  if (myline>=4)    {digitalWrite(LED7, HIGH); myline-=4;}    else {digitalWrite(LED7, LOW);}
  if (myline>=2)    {digitalWrite(LED8, HIGH); myline-=2;}    else {digitalWrite(LED8, LOW);}
  if (myline>=1)    {digitalWrite(LED9, HIGH); myline-=1;}    else {digitalWrite(LED9, LOW);}  
}

void displayChar(char c)
{
  if (c == 'a'){for (int i = 0; i <10; i++){displayLine(a[i]);delay(delayTime);}displayLine(0);}
  if (c == 'b'){for (int i = 0; i <10; i++){displayLine(b[i]);delay(delayTime);}displayLine(0);}
  if (c == 'c'){for (int i = 0; i <10; i++){displayLine(c2[i]);delay(delayTime);}displayLine(0);}
  if (c == 'd'){for (int i = 0; i <10; i++){displayLine(d[i]);delay(delayTime);}displayLine(0);}
  if (c == 'e'){for (int i = 0; i <10; i++){displayLine(e[i]);delay(delayTime);}displayLine(0);}
  if (c == 'f'){for (int i = 0; i <10; i++){displayLine(f[i]);delay(delayTime);}displayLine(0);}
  if (c == 'g'){for (int i = 0; i <10; i++){displayLine(g[i]);delay(delayTime);}displayLine(0);}
  if (c == 'h'){for (int i = 0; i <10; i++){displayLine(h[i]);delay(delayTime);}displayLine(0);}  
  if (c == 'i'){for (int it = 0; it <10; it++){displayLine(i[it]);delay(delayTime);}displayLine(0);}
  if (c == 'j'){for (int i = 0; i <10; i++){displayLine(j[i]);delay(delayTime);}displayLine(0);}
  if (c == 'k'){for (int i = 0; i <10; i++){displayLine(k[i]);delay(delayTime);}displayLine(0);}
  if (c == 'l'){for (int i = 0; i <10; i++){displayLine(l[i]);delay(delayTime);}displayLine(0);}
  if (c == 'm'){for (int i = 0; i <10; i++){displayLine(m[i]);delay(delayTime);}displayLine(0);}
  if (c == 'n'){for (int i = 0; i <10; i++){displayLine(n[i]);delay(delayTime);}displayLine(0);}
  if (c == 'o'){for (int i = 0; i <10; i++){displayLine(o[i]);delay(delayTime);}displayLine(0);}
  if (c == 'p'){for (int i = 0; i <10; i++){displayLine(p[i]);delay(delayTime);}displayLine(0);}
  if (c == 'q'){for (int i = 0; i <10; i++){displayLine(q[i]);delay(delayTime);}displayLine(0);}
  if (c == 'r'){for (int i = 0; i <10; i++){displayLine(r[i]);delay(delayTime);}displayLine(0);}
  if (c == 's'){for (int i = 0; i <10; i++){displayLine(s[i]);delay(delayTime);}displayLine(0);}
  if (c == 't'){for (int i = 0; i <10; i++){displayLine(t[i]);delay(delayTime);}displayLine(0);}
  if (c == 'u'){for (int i = 0; i <10; i++){displayLine(u[i]);delay(delayTime);}displayLine(0);}
  if (c == 'v'){for (int i = 0; i <10; i++){displayLine(v[i]);delay(delayTime);}displayLine(0);}
  if (c == 'w'){for (int i = 0; i <10; i++){displayLine(w[i]);delay(delayTime);}displayLine(0);}
  if (c == 'x'){for (int i = 0; i <10; i++){displayLine(x[i]);delay(delayTime);}displayLine(0);}
  if (c == 'y'){for (int i = 0; i <10; i++){displayLine(y[i]);delay(delayTime);}displayLine(0);}
  if (c == 'z'){for (int i = 0; i <10; i++){displayLine(z[i]);delay(delayTime);}displayLine(0);}
  if (c == '!'){for (int i = 0; i <10; i++){displayLine(excl[i]);delay(delayTime);}displayLine(0);}
  if (c == '?'){for (int i = 0; i <10; i++){displayLine(ques[i]);delay(delayTime);}displayLine(0);}
  if (c == '.'){for (int i = 0; i <10; i++){displayLine(eos[i]);delay(delayTime);}displayLine(0);}
  delay(charBreak);
}

void displayString(char* s)
{
  for (int i = 0; i<=strlen(s); i++)
  {
    displayChar(s[i]);
  }
}

void loop()
{
  charBreak=1;
  {
    for (int i=0;i<=100;i++)
    displayString("..hello.");
  }
    if (Serial.available()) {
     delay(50);
     if((Serial.read())=='1')
     {
        if(digitalRead(motorPin)==LOW)
        {
          digitalWrite(motorPin,HIGH);
          Serial.println("Turned ON!");
        }
        else
        {
          digitalWrite(motorPin,LOW);
          Serial.println("Turned OFF!");
        }
     }
  }
}
3

Thank
But motor dc can't run

4

Thank
But motor dc can't run

Get it a pair of running shoes.

If it won't wear them, then posting your code and a schematic would be fun.

5

Hi, did both bits of code work on their own?
Please tell us what you are trying to achieve, your inputs, your outputs.

Can you please post a copy of your circuit, in CAD or a picture of a hand drawn circuit in jpg, png or pdf?

Tom.... :slight_smile:

6

It would seem that the displayChar() function could be simplified a bit:

#define ARRAYSIZE(x) (sizeof(x) / sizeof(x[0]))   // Place near top of sketch

void displayChar(char array[])
{
   int i;

   for (i = 0; i < ARRAYSIZE(array); i++) {
      displayLine(array[i]);
      delay(delayTime);
   }
   displayLine(0);
}

Also, in displayLine(), why define myline? Just use line as it is passed into the function.

7

I use this schematic

pov2.PNG
pov2.PNG757×493 132 KB

8

Hi,
It probably will not fix the problem, but remove the wire that connects to the emitter of the TIP120 from the gnd pin of the arduino and place it on the gnd/neg line on the protoboard where the neg of the battery connects.

That is, you should have one wire from transistor emitter to battery neg.

This will keep any motor current away from your controller and protoboard.

Did both bits of code work on their own?

Please tell us what you are trying to achieve, your inputs, your outputs.

Sorry but a Fritzing diag is not a circuit diag, but sufficient for now.

Tom........ :slight_smile:

I presume you are using something better than a 9V transistor/smokedetector battery.

9

Thank a lot Tom. :slight_smile:

I want to control motor dc with my smartphone.
I use HC-06 bluetooth.

when pov display run, i want to turn on motor dc with my smartphone.

Yes they both of code work on their own?

10

Much simplified "displayLine" (uncompiled, untested)

const uint8_t ledPin [] = {LED0, LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8, LED9}; 
const uint8_t N_LEDS = sizeof (ledPin) / sizeof (ledPin [0]);
// simple "for" loop in "setup()" sets the pin modes.


void displayLine(int line)
{
  for (uint8_t i = 0, int mask = 1 << N_LEDS; i < N_LEDS; i++, mask >>= 1)
  {
    digitalWrite(ledPin [i], line & mask ? HIGH : LOW);
    // or just simply 
    // digitalWrite(ledPin [i], line & mask);
  } 
}
11

thanks for all your help. :slight_smile:
It is much appreciated.