How to use two different program into one stkech.

Projects Programming
1

Hello there,

I am currently using relay module, but I am facing a problem that, when Arduino pins are low then all relay are going HIGH, so I want to use this code so that when arduino start all pins are getting HIGH, and also can be control with char data/switch(data)/case break;/,

Here is my code:

setup() {
  if(conditionIsTrue) {
    aGroup::setup();
  } else {
    bGroup::setup();    
  }
}

loop() {
  if(conditionIsTrue) {
    aGroup::loop();
  } else {
    bGroup::loop();    
  }
}

namespace aGroup {
setup() {
  
	pinMode(ledPinA, OUTPUT);
    pinMode(ledPinB, OUTPUT);
    pinMode(ledPinC, OUTPUT);
    pinMode(ledPinD, OUTPUT);
    pinMode(ledPinE, OUTPUT);
    pinMode(ledPinF, OUTPUT);
    pinMode(ledPinG, OUTPUT);
    pinMode(ledPinH, OUTPUT);
    pinMode(ledPinI, OUTPUT);
    pinMode(ledPinJ, OUTPUT);
    pinMode(ledPinK, OUTPUT);
    pinMode(ledPinL, OUTPUT);
  
}

loop() {
  
  digitalWrite(ledPinA, HIGH);
  digitalWrite(ledPinB, HIGH);
  digitalWrite(ledPinC, HIGH);
  digitalWrite(ledPinD, HIGH);
  digitalWrite(ledPinE, HIGH);
  digitalWrite(ledPinF, HIGH);
  digitalWrite(ledPinG, HIGH);
  digitalWrite(ledPinH, HIGH);
  digitalWrite(ledPinI, HIGH);
  digitalWrite(ledPinJ, HIGH);
  digitalWrite(ledPinK, HIGH);
  digitalWrite(ledPinL, HIGH);
  
}
}

namespace bGroup {
setup() {
  Serial.begin(9600);
    pinMode(ledPinA, OUTPUT);
    pinMode(ledPinB, OUTPUT);
    pinMode(ledPinC, OUTPUT);
    pinMode(ledPinD, OUTPUT);
    pinMode(ledPinE, OUTPUT);
    pinMode(ledPinF, OUTPUT);
    pinMode(ledPinG, OUTPUT);
    pinMode(ledPinH, OUTPUT);
    pinMode(ledPinI, OUTPUT);
    pinMode(ledPinJ, OUTPUT);
    pinMode(ledPinK, OUTPUT);
    pinMode(ledPinL, OUTPUT);

}

loop() {
  
  char data = Serial.read();
    switch(data) 
    {
        case 'A': digitalWrite(ledPinA, HIGH);break;
        case 'B': digitalWrite(ledPinA, LOW);break;
        
        case 'C': digitalWrite(ledPinB, HIGH);break;
        case 'D': digitalWrite(ledPinB, LOW);break;
        
        case 'E': digitalWrite(ledPinC, HIGH);break;
        case 'F': digitalWrite(ledPinC, LOW);break;
        
        case 'G': digitalWrite(ledPinD, HIGH);break;
        case 'H': digitalWrite(ledPinD, LOW);break;
        
        case 'I': digitalWrite(ledPinE, HIGH);break;
        case 'J': digitalWrite(ledPinE, LOW);break;
        
        case 'K': digitalWrite(ledPinF, HIGH);break;
        case 'L': digitalWrite(ledPinF, LOW);break;
        
        case 'M': digitalWrite(ledPinG, HIGH);break;
        case 'N': digitalWrite(ledPinG, LOW);break;
        
        case 'O': digitalWrite(ledPinH, HIGH);break;
        case 'P': digitalWrite(ledPinH, LOW);break;
        
        case 'Q': digitalWrite(ledPinI, HIGH);break;
        case 'R': digitalWrite(ledPinI, LOW);break;
        
        case 'S': digitalWrite(ledPinJ, HIGH);break;
        case 'T': digitalWrite(ledPinJ, LOW);break;
        
        case 'U': digitalWrite(ledPinK, HIGH);break;
        case 'V': digitalWrite(ledPinK, LOW);break;
        
        case 'W': digitalWrite(ledPinL, HIGH);break;
        case 'X': digitalWrite(ledPinL, LOW);break;
        
        
    }
  
}
}

But this isn't work, Please help me.

2

I think that you need to do some studying on how an Arduino sketch is written and the basics of C++. There are many example programs that come with the IDE that can help you learn.

3

I am intrigued to know why someone would use the complexity of a namespace and not know to use arrays which are a much more basic concept.

If you are unfamiliar with programming just stick with the standard Arduino way of doing things.

...R

4

Example for 12 active-low outputs, controlled by single characters.

Upercase letters switch the port to ACTIVE, lowercase to INACTIVE.

'X' switches all on, 'x' all off.

const byte ledPin[] = { 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, };
const byte leds = sizeof(ledPin);

#define INACTIVE  HIGH
#define ACTIVE  LOW

void setup() {
  Serial.begin(250000);
  for (byte i = 0; i < leds; i++) {
    pinMode(ledPin[i], OUTPUT);
    digitalWrite(ledPin[i], INACTIVE);
  }
}

void loop() {
  if (Serial.available()) {
    char data = Serial.read();
    switch (data) {
      case 'a' ... 'l':
        digitalWrite(ledPin[data - 'a'], INACTIVE);
        break;
      case 'x':
        for (byte i = 0; i < leds; i++) {
          digitalWrite(ledPin[i], INACTIVE);
        }
        break;
      case 'A' ... 'L':
        digitalWrite(ledPin[data - 'A'], ACTIVE);
        break;
      case 'X':
        for (byte i = 0; i < leds; i++) {
          digitalWrite(ledPin[i], ACTIVE);
        }
        break;
    }
  }
}