Code not working potentiometer in r4 minima

Official Hardware UNO Family UNO R4 Minima
1

Hi my name Luigi from Italy my English elementary from study hobby.

My problem code not working in r4 minima with out WIFI.

my code:


const int RED = 3;
const int GREEN = 6;
const int BLUE = 5;

void color_clear();
void set_color(int R, int G, int B);

int potValue;
int potMaxValue = 3;
int potMap;
int PIN_POT =  14;

void setup() {
  pinMode(RED, OUTPUT);
  pinMode(GREEN, OUTPUT);
  pinMode(BLUE, OUTPUT);
  Serial.begin(115200);
  color_clear();
}

void loop() {
  potValue = analogRead(PIN_POT);
  potMap = map(potValue, 0, 1023, 0, potMaxValue);


  if (potMap == 1)
  {
    Serial.println("RED");
    set_color(255,0,0);
  }
  else if (potMap == 2)
  {
    Serial.println("GREEN");
    set_color(0,255,0);
  }
  else if(potMap == 3)
  {
    Serial.println("BLUE");
    set_color(0,0,255);
  }else
  {
    Serial.println("OFF");
    color_clear();
  }
  Serial.println(potMap);
  delay(30);
}


void set_color(int R, int G, int B){
  analogWrite(RED, R);
  analogWrite(GREEN, G);
  analogWrite(BLUE, B);
}

void color_clear(){
  digitalWrite(RED, LOW);
  digitalWrite(GREEN, LOW);
  digitalWrite(BLUE, LOW);
}

Not working from r4 minima.

Upload sketch nano r3 .. code normal running.

My pinout pontetiometer:
image

2

Some more debug prints?
A0 is more architecture neutral than 14.

3

But by chance I have to put 4096 in the adc max.

Tomorrow I try now good night for me in Italy.

4

Hi, I checked the simple simple circuit well.. but the code doesn't work correctly.. I attach photos and new code.. I put 4096 because outside of the arduino uno boards. The esp32 boards have the potentiometer which is 4096 adc max. But I put it like this because I had a doubt that here too.. it should be put like this.. but it's not like that. Idea ? Good day.

image

image
image308×605 56.4 KB

5 

const int RED = 3;
const int GREEN = 6;
const int BLUE = 5;

void color_clear();
void set_color(int R, int G, int B);

int potValue;
int potMaxValue = 3;
int potMap;

void setup() {
  pinMode(RED, OUTPUT);
  pinMode(GREEN, OUTPUT);
  pinMode(BLUE, OUTPUT);
  Serial.begin(115200);
  color_clear();
}

void loop() {
  potValue = analogRead(A0);
  potMap = map(potValue, 0, 4096, 0, potMaxValue);


  if (potMap == 1)
  {
    Serial.println("RED");
    set_color(255,0,0);
  }
  else if (potMap == 2)
  {
    Serial.println("GREEN");
    set_color(0,255,0);
  }
  else if(potMap == 3)
  {
    Serial.println("BLUE");
    set_color(0,0,255);
  }else if (potMap == 0)
  {
    Serial.println("OFF");
    color_clear();
  }
  Serial.println(potMap);
  delay(30);
}


void set_color(int R, int G, int B){
  analogWrite(RED, R);
  analogWrite(GREEN, G);
  analogWrite(BLUE, B);
}

void color_clear(){
  digitalWrite(RED, LOW);
  digitalWrite(GREEN, LOW);
  digitalWrite(BLUE, LOW);
}
6

Why bother?
Why not just

set_color (0,0,0) ;
7

Maybe there are.. I would like to know how I can do that:

1: Red
2: Green
3: Blue

The problem is the arduino-cli cache, which always loaded the old one for me.. I emptied the temporary folder of the system and now it seems to work as I want.. In addition, I changed the potentiometer.. I am attaching semi-functional code. To make that I would like to do as I put you in the above list what should I do?.
In this piece of code:
potMap = map(potValue, 0, 1023, potMinValue, potMaxValue);

that I have to change so that the 4 does not come in the serial monitor when I turn the potentiometer ?.

Thank you very much and have a nice day.


#define RED 3
#define GREEN 6
#define BLUE 5
int POT = 14;

void set_color(int R, int G, int B);

int potValue;
int potMinValue = 1;
int potMaxValue = 4;
int potMap;
const char * color;
void setup() {
  Serial.begin(115200);
  pinMode(RED, OUTPUT);
  pinMode(GREEN, OUTPUT);
  pinMode(BLUE, OUTPUT);
  set_color(0,0,0);
}

void loop() {
  potValue = analogRead(POT);
  potMap = map(potValue, 0, 1023, potMinValue, potMaxValue);

  if (potMap == 1)
  {
    color = "RED";
    set_color(255,0,0);
  }
  else if (potMap == 2)
  {
    color = "GREEN";
    set_color(0,255,0);
  }
  else if(potMap == 3)
  {
    color = "BLUE";
    set_color(0,0,255);
  }else
  {
    color = "OFF";
    set_color(0,0,0);
  }
  // Serial.println(color);
  Serial.println(potMap);
  delay(30);
}

void set_color(int R, int G, int B){
  analogWrite(RED, R);
  analogWrite(GREEN, G);
  analogWrite(BLUE, B);
}
8

ok, fixed code:

Because if I just touch the potentiometer.. 4 comes out. ? I would like 1 to 3. And sometimes a 4 comes up every once in a while.


#define RED 3
#define GREEN 6
#define BLUE 5
int POT = 14;
void set_color(int R, int G, int B);
int potMinValue = 1;
int potMaxValue = 4;
int potValue,potPreviousValue;
const char * color;
void setup() {
  Serial.begin(115200);
  pinMode(RED, OUTPUT);
  pinMode(GREEN, OUTPUT);
  pinMode(BLUE, OUTPUT);
  set_color(0,0,0);
}

void loop() {
  potValue = analogRead(POT);
  potValue = map(potValue, 0, 1023, potMinValue, potMaxValue);
  if (potValue != potPreviousValue)
  {
    if (potValue == 1)
    {
      color = "RED";
      set_color(255,0,0);
    }
    else if (potValue == 2)
    {
      color = "GREEN";
      set_color(0,255,0);
    }
    else if(potValue == 3)
    {
      color = "BLUE";
      set_color(0,0,255);
    }else
    {
      color = "OFF";
      set_color(0,0,0);
    }
    potPreviousValue = potValue;
    Serial.println(color);
    Serial.println(potValue);

  }
  delay(500);
}
void set_color(int R, int G, int B){
  analogWrite(RED, R);
  analogWrite(GREEN, G);
  analogWrite(BLUE, B);
}
9

I think you need to use the constrain function before you apply the map function.