LED Decimal to Binary Converter

1//Personal project
2//Controlling LED with serial and shift register
3
4//Setting  up shift register Pins
5int latch=10;
6int clockPin=11;
7int dataPin=12;
8int  OE=9;
9
10//Creating a buffer to hold values
11char buffer[11];
12
13void  setup() {
14  // put your setup code here, to run once:
15
16 //Setting up shift  register Pins
17  pinMode(latch,OUTPUT);
18  pinMode(clockPin,OUTPUT);
19  pinMode(dataPin,OUTPUT);
20  pinMode(OE,OUTPUT);
21  
22  //starting Serial monitor
23  Serial.begin(9600);
24}
25
26void  loop() {
27  // put your main code here, to run repeatedly:
28 //check if user  typed something
29  if (Serial.available() > 0) {    
30    int index=0;   
31    delay(100); // let the buffer fill up   
32    int numChar = Serial.available();   
33  if (numChar>11) {      
34    numChar=11;   
35  }    
36  while (numChar--)  {     
37    buffer[index++] = Serial.read();    
38   }    
39   splitString(buffer);  
40 } 
41}
42
43void splitString(char* data){
44  Serial.print("Data entered:  "); 
45  Serial.println(data);  
46  char* parameter;  
47  parameter = strtok  (data, " ,"); 
48  while (parameter != NULL) {    
49    setLED(parameter);   
50    parameter = strtok (NULL, " ,"); 
51    } 
52    
53    // Clear  the text and serial buffers  
54  for (int x=0; x<11; x++) {   
55     buffer[x]='\\0';  
56   }  
57  }
58 void setLED(char* data) {  
59  Serial.println(data);
60  if ((data[0] == 'b') || (data[0] == 'B')) {  
61    int Ans = strtol(data+1,  NULL, 10);  
62    Ans = constrain(Ans,0,255);    
63    analogWrite(OE, 255-Ans);   
64    Serial.print("Brightness is set to: ");  
65    Serial.println(Ans);  
66    }  
67   else{
68     int num = strtol(data, NULL, 10);  
69     num  = constrain(Ans,0,255);
70     digitalWrite(latch, LOW);
71     shiftOut(dataPin,  clockPin, LSBFIRST, num);
72     digitalWrite(latch, HIGH);
73     Serial.print("number  is set to: ");  
74     Serial.println(num); 
75    }
76   }
77

1//Personal project
2//Controlling LED with serial and shift register
3
4//Setting   up shift register Pins
5int latch=10;
6int clockPin=11;
7int dataPin=12;
8int   OE=9;
9
10//Creating a buffer to hold values
11char buffer[11];
12
13void   setup() {
14  // put your setup code here, to run once:
15
16 //Setting up shift   register Pins
17  pinMode(latch,OUTPUT);
18  pinMode(clockPin,OUTPUT);
19  pinMode(dataPin,OUTPUT);
20   pinMode(OE,OUTPUT);
21  
22  //starting Serial monitor
23  Serial.begin(9600);
24}
25
26void   loop() {
27  // put your main code here, to run repeatedly:
28 //check if user   typed something
29  if (Serial.available() > 0) {    
30    int index=0;   
31     delay(100); // let the buffer fill up   
32    int numChar = Serial.available();    
33  if (numChar>11) {      
34    numChar=11;   
35  }    
36  while (numChar--)   {     
37    buffer[index++] = Serial.read();    
38   }    
39   splitString(buffer);   
40 } 
41}
42
43void splitString(char* data){
44  Serial.print("Data entered:   "); 
45  Serial.println(data);  
46  char* parameter;  
47  parameter = strtok   (data, " ,"); 
48  while (parameter != NULL) {    
49    setLED(parameter);    
50    parameter = strtok (NULL, " ,"); 
51    } 
52    
53    // Clear   the text and serial buffers  
54  for (int x=0; x<11; x++) {   
55     buffer[x]='\\0';   
56   }  
57  }
58 void setLED(char* data) {  
59  Serial.println(data);
60   if ((data[0] == 'b') || (data[0] == 'B')) {  
61    int Ans = strtol(data+1,   NULL, 10);  
62    Ans = constrain(Ans,0,255);    
63    analogWrite(OE, 255-Ans);    
64    Serial.print("Brightness is set to: ");  
65    Serial.println(Ans);   
66    }  
67   else{
68     int num = strtol(data, NULL, 10);  
69     num   = constrain(Ans,0,255);
70     digitalWrite(latch, LOW);
71     shiftOut(dataPin,   clockPin, LSBFIRST, num);
72     digitalWrite(latch, HIGH);
73     Serial.print("number   is set to: ");  
74     Serial.println(num); 
75    }
76   }
77