Stop/Start button analog readings

petersain · January 18, 2021, 2:55pm

Hi

I connect 6 buttons using various resistances to 1 analog pin and is working fine and each button will have different behaviours.
When one button is punched the process of that button begins and i want to block readings if other buttons are pressed. Is there a way when i press a button stop analog readings and in the end of the process start analog readings again from A0 (button pin readings)?

Below is the loop code i have to the buttons. Thanks in advance

//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>Definição de Botões

  int botao = analogRead(A0);

  if (botao > 10) {
    if (botao > 560)    {
      delay(200);
      last_botao = 2;
    }

    else if (botao > 510)    {
      delay(200);
      last_botao = 1;
    }
  }



  //>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<>>>>>>>>>>ARRANQUE DO CONTADOR E ZERAR A CONTAGEM
  if (last_botao > 0)    {
    contagem_pulsos();
  }
  if (last_botao == 0)    {
    contagem_total = 0;
    flow_frequency = 0;
  }



  //>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>COMPORTAMENTO DOS BOTÕES

  if (last_botao == 1) {
    if (contagem_total < fluxo1 - 80) {
      digitalWrite(rele_enchimento, HIGH);
      digitalWrite(rele_fim, LOW);
      digitalWrite(rele_natural, HIGH);
    }
    else if (contagem_total < fluxo1) {
      digitalWrite(rele_enchimento, LOW);
      digitalWrite(rele_fim, HIGH);
      digitalWrite(rele_natural, HIGH);
    }
    else if (contagem_total == fluxo1 || contagem_total < fluxo1) {
      digitalWrite(rele_enchimento, LOW);
      digitalWrite(rele_fim, LOW);
      digitalWrite(rele_natural, LOW);
      last_botao = 0;
    }
  }




  if (last_botao == 2) {
    if (contagem_total < fluxo2 - 80) {
      digitalWrite(rele_enchimento, HIGH);
      digitalWrite(rele_fim, LOW);
      digitalWrite(rele_natural, HIGH);
    }
    else if (contagem_total < fluxo2) {
      digitalWrite(rele_enchimento, LOW);
      digitalWrite(rele_fim, HIGH);
      digitalWrite(rele_natural, HIGH);
    }
    else if (contagem_total == fluxo2 || contagem_total < fluxo2) {
      digitalWrite(rele_enchimento, LOW);
      digitalWrite(rele_fim, LOW);
      digitalWrite(rele_natural, LOW);
      last_botao = 0;
    }
  }

UKHeliBob · January 18, 2021, 3:10pm

Control whether the buttons are read using a boolean variable. Only read the buttons when the boolean is true

Set the boolean to true initially

When a button press is detected set the boolean to false and don't set it back to true until you are ready to read another button press

wildbill · January 18, 2021, 3:12pm

Just don't read the analog pin while your process is running.

Usually, the problem is the other way round - people want their system to respond to a button press promptly.

petersain · January 18, 2021, 4:13pm

Hi again

I adapt the code with a "bool botao_ocupado = false;" and put the conditions but when i press other button they are still responding.

Sorry I ask but can you tell me if i put the conditions in the right way? Thanks

//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>Definição de Botões

  if (botao_ocupado == false) {
    botao = analogRead(A0);
  }


  if (botao > 10) {

    if (botao > 560)    {
      delay(200);
      last_botao = 2;
    }
    else if (botao > 510)    {
      delay(200);
      last_botao = 1;
    }
  }



  //>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<>>>>>>>>>>ARRANQUE DO CONTADOR E ZERAR A CONTAGEM
  if (last_botao > 0)     {
    botao_ocupado = !botao_ocupado;
    contagem_pulsos();
  }
  if (last_botao == 0)    {
    contagem_total = 0;
    flow_frequency = 0;
  }



  //>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>COMPORTAMENTO DOS BOTÕES

  if (last_botao == 1) {
    if (contagem_total < fluxo1 - 80) {
      digitalWrite(rele_enchimento, HIGH);
      digitalWrite(rele_fim, LOW);
      digitalWrite(rele_natural, HIGH);
    }
    else if (contagem_total < fluxo1) {
      digitalWrite(rele_enchimento, LOW);
      digitalWrite(rele_fim, HIGH);
      digitalWrite(rele_natural, HIGH);
    }
    else if (contagem_total == fluxo1 || contagem_total < fluxo1) {
      digitalWrite(rele_enchimento, LOW);
      digitalWrite(rele_fim, LOW);
      digitalWrite(rele_natural, LOW);
      last_botao = 0;
      botao_ocupado = !botao_ocupado;
    }
  }




  if (last_botao == 2) {
    if (contagem_total < fluxo2 - 80) {
      digitalWrite(rele_enchimento, HIGH);
      digitalWrite(rele_fim, LOW);
      digitalWrite(rele_natural, HIGH);
    }
    else if (contagem_total < fluxo2) {
      digitalWrite(rele_enchimento, LOW);
      digitalWrite(rele_fim, HIGH);
      digitalWrite(rele_natural, HIGH);
    }
    else if (contagem_total == fluxo2 || contagem_total < fluxo2) {
      digitalWrite(rele_enchimento, LOW);
      digitalWrite(rele_fim, LOW);
      digitalWrite(rele_natural, LOW);
      last_botao = 0;
      botao_ocupado = !botao_ocupado;
    }
  }

UKHeliBob · January 18, 2021, 4:31pm

Print botao_ocupado before you test it. Is the value what you expect ?

Why are you inverting the state of botao_ocupado instead of setting its value explicitly ?

petersain · January 18, 2021, 5:38pm

I switch the values to true/false instead of inverting the state as recommended end print the result and the result is ok . However the process of the relays do not start.

if (botao_ocupado == false) {
    botao = analogRead(A0);
  }


  if (botao > 10) {

    if (botao > 560)    {
      delay(200);
      last_botao = 2;
    }
    else if (botao > 510)    {
      delay(200);
      last_botao = 1;
    }
  }



  //>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<>>>>>>>>>>ARRANQUE DO CONTADOR E ZERAR A CONTAGEM
  if (last_botao > 0)     {
    botao_ocupado = true;
    contagem_pulsos();
  }
  
  if (last_botao == 0)    {
    contagem_total = 0;
    flow_frequency = 0;
  }



  //>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>COMPORTAMENTO DOS BOTÕES

  if (last_botao == 1) {
    if (contagem_total < fluxo1 - 80) {
      digitalWrite(rele_enchimento, HIGH);
      digitalWrite(rele_fim, LOW);
      digitalWrite(rele_natural, HIGH);
    }
    else if (contagem_total < fluxo1) {
      digitalWrite(rele_enchimento, LOW);
      digitalWrite(rele_fim, HIGH);
      digitalWrite(rele_natural, HIGH);
    }
    else if (contagem_total == fluxo1 || contagem_total < fluxo1) {
      digitalWrite(rele_enchimento, LOW);
      digitalWrite(rele_fim, LOW);
      digitalWrite(rele_natural, LOW);
      last_botao = 0;
      botao_ocupado = false;
    }
  }




  if (last_botao == 2) {
    if (contagem_total < fluxo2 - 80) {
      digitalWrite(rele_enchimento, HIGH);
      digitalWrite(rele_fim, LOW);
      digitalWrite(rele_natural, HIGH);
    }
    else if (contagem_total < fluxo2) {
      digitalWrite(rele_enchimento, LOW);
      digitalWrite(rele_fim, HIGH);
      digitalWrite(rele_natural, HIGH);
    }
    else if (contagem_total == fluxo2 || contagem_total < fluxo2) {
      digitalWrite(rele_enchimento, LOW);
      digitalWrite(rele_fim, LOW);
      digitalWrite(rele_natural, LOW);
      last_botao = 0;
      botao_ocupado = false;
    }
  }

petersain · January 18, 2021, 5:50pm

Hi

Found the problem. The condition need to be a level below. Thanks for the time and patience.

UKHeliBob · January 18, 2021, 5:51pm

Please stop posting snippets of code and post complete programs so that problems can be seen in context

system · May 18, 2021, 5:52pm

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Stop/Start button analog readings

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