ESP8266 Analog Input Triggering issue for One Shot

[King_RAJ_Enters]

Here the code below I am dealing with ESP 8266 & a DF Player is for the analog input triggering purpose

But here when I use to trigger the A0 input in series with a resistor value via earth line
It simply starts triggering the file repeatedly with a very high triggering speed
Unless and until I release the push button it keeps on triggering the defined file for the analog value range given

Even if I quickly press and release the button, it triggers so many times in the mean time

Triggering speed is too too much high and produces an effect like some electrical device is creating a spark due to loose wiring.

I want to have here triggering like
Just I press the button and it ll trigger the file once that's it
No matter I release immediately or keep pressing it

If I want to trigger the file again, I ll have to press the button again after releasing it

#include <LCD_I2C.h> // THIS PART IS REQUIRED IN CASE OF ARDUINO UNO NANO AND MEGA BUT NOT WITH ESP 8266
LCD_I2C lcd(0x27, 16, 2); // I2C address 0x27, 16 column and 2 rows

const int AnalogPin = A0;
int AnalogValue = 0;
int button = 14; //D2(gpio4)
int ledpin = 2; // 2
const byte pinDfpBusy1 = 15;
#include <DFPlayerMini_Fast.h>
#include <SoftwareSerial.h>
SoftwareSerial mySerial1(3, 1); // RX, TX   
DFPlayerMini_Fast player1;
void setup() {
  lcd.begin(); // initialize the lcd
  lcd.backlight();
  pinMode(pinDfpBusy1, INPUT);
  pinMode(button, INPUT);    //  14
  pinMode(ledpin, OUTPUT);  //   2
  Serial.begin(9600);

  mySerial1.begin(9600);
  // if(player1.begin(mySerial1, true, false))
   if(player1.begin(mySerial1, false))
  {
  player1.volume(12);
  player1.play(3);
  }
}
void loop() {
AnalogValue = analogRead(AnalogPin);
Serial.println(AnalogValue);
if(AnalogValue>=690&&AnalogValue<=720)
{
player1.loop(84);
}
}

So is there any coding technique required or it is completely depending on some hardware changes or introduction of few networks their ??

Please guide

[UKHeliBob]

You need to detect when the value returned by analogRead() enters the required range rather than when it is i the required range

The StateChangeDetection example in the IDE will show you how to do that for a digital input but it is easy to adapt it to use an analogue input.

[xfpd]

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I am working with this code on UNO for a one shot or functions like a mono stable works with a very short duration of time (Just A Tick) . . I want to design the system without delay so going with the code below " const int SWT1 = 3; // the number of the pushbutton pin const int LED1 = 2; const int DEBOUNCE_DELAY = 10; // the debounce time; increase if the output flickers // Variables will change: int lastSteadyStateA = LOW; // the previous steady state from the input pin int …

So many ingredients in the soup.

[King_RAJ_Enters]

@UKHeliBob

You need to detect when the value returned by analogRead() enters the required range rather than when it is i the required range

This part is bit complex for me Sir
Would you please elaborate ??

@UKHeliBob

The StateChangeDetection example in the IDE will show you how to do that for a digital input but it is easy to adapt it to use an analogue input.

For this part I am trying with some thing like this but not sure what I am up to

const int buttonPin  = 39;     // the pin that the pushbutton is attached to
const int ledPin     = 2;    // the pin that the LED is attached to

const int AnalogPin = 15;
int AnalogValue = 0;

int buttonState      = 0;     // current state of the button
int lastButtonState  = 0;     // previous state of the button
int ledState         = 0;     // remember current led state

#include <DFPlayerMini_Fast.h>
#include <SoftwareSerial.h>
SoftwareSerial mySerial1(3, 1); // RX, TX
DFPlayerMini_Fast player1;

void setup() {
  pinMode(buttonPin, INPUT);  // initialize the button pin as a input
  pinMode(ledPin, OUTPUT);    // initialize the button pin as a output
  mySerial1.begin(9600);
  if (player1.begin(mySerial1, false)) {
    player1.volume(22);
    player1.play(3);
  }
}

void loop() {
  // read the pushbutton input pin

  AnalogValue = analogRead(AnalogPin);
  Serial.println(AnalogValue);
  buttonState = analogRead(AnalogPin);
  // buttonState = digitalRead(buttonPin);

  

  // check if the button is pressed or released
  // by comparing the buttonState to its previous state 
  // if (buttonState != lastButtonState) {
    // if(AnalogValue>=1100&&AnalogValue<=1250)
    // {
    
    // change the state of the led when someone pressed the button
    if (buttonState == 1) { 
      if(AnalogValue>=1100&&AnalogValue<=1250)
      {
      if(ledState==1)
      {
      player1.loop(84);
      ledState=0;
      }
      else
      ledState=1;         
    }
    }
    
    // remember the current state of the button
    lastButtonState = buttonState;
  // }
  
  // turns LED on if the ledState=1 or off if the ledState=0
  // digitalWrite(ledPin, ledState);
  
  // adding a small delay prevents reading the buttonState to fast
  // ( debouncing )
  delay(20);


}

Don't know what I am doing
Would you please help me in this kind of design

[King_RAJ_Enters]

Ya from this word stone soup

I got an idea from OneWireKeypad thing

As you told about this
boolean stone
boolean soup
etc etc

Is it possible to apply that thing here

[xfpd]

@King_RAJ_Enters

boolean stone
boolean soup

Probably, since it was used in one of your other topics on the same subject. A boolean flag is instrumental when you have an on/off (1/0, yes/no, up/down, left/right) decision in your program (and DFPlayerMini topic, not the other three, including OneWire topic). The "flag" was meant for the program to know "I have played this"... but again, on another topic.

If you are saying you understand my references to Stone Soup, it is because you start a subject, and by post #140, you have changed the subject by adding increasing numbers of devices and tangential "and another thing" parts to your project. You should start a subject and follow it to completion, even if "just one more ingredient" sounds innocuous. Last year or the year before I was on a thread of yours that burned me out after a month and reached over 200 posts. Part of the "200" posts is your refusal to learn. Everything that you have complete has been written by NOT you, not even the smallest "how to wire a button" function.

Keep having fun with all your ideas, and all the changes in your ideas, for all your projects. You MUST put your effort into learning and these ideas will actually be your ideas, your work and your completed project. I guarantee it.

Put an end to this:

@King_RAJ_Enters

Don't know what I am doing
Would you please help me in this kind of design

Read a book.

[alto777]

@King_RAJ_Enters

buttonState = analogRead(AnalogPin);

If you instead

buttonState = analogRead(AnalogPin) > 512 ? HIGH : LOW;

then you would be able to use buttonState exactly as if a regular pushbutton was informing its value for purposes of state change detection, to which your attention has already been drawn.

State change detection and its cousin debouncing noisy (all!) switches is among a handful,of things you must. Learn. How. To. Do.

I already regret what I would bet is this waste of time. Please prove me wrong and demonstrate that you can go read through a few examples and come to grips with

 switch debouncing

and

state change detection.

I am certain google works well enough wherever you are that it woukd help you find a learning source that matches your learning style.

a7

[King_RAJ_Enters]

Is there anything to deal with a digital low pass filter to solve this ???

[King_RAJ_Enters]

Sir it triggers the file once with no errors but after that no effect of pressing button after a single click

Again i have to reset the MCU to repeat the action

int lastButtonState = 0;

const int AnalogPin = 15;
int AnalogValue = 0;

int currentButtonState = 0;
unsigned long lastDebounceTime = 0;
unsigned long debounceDelay = 50;

#include <DFPlayerMini_Fast.h>
#include <SoftwareSerial.h>
SoftwareSerial mySerial1(3, 1); // RX, TX
DFPlayerMini_Fast player1;

void setup() {
  pinMode(inputPin, INPUT);
  Serial.begin(9600);

  mySerial1.begin(9600);
  if (player1.begin(mySerial1, false)) {
    player1.volume(22);
    player1.play(3);
  }

}

void loop() {

  AnalogValue = analogRead(AnalogPin);
  Serial.println(AnalogValue);
  buttonState = analogRead(AnalogPin);

  // currentButtonState = digitalRead(inputPin);

  if (currentButtonState != lastButtonState) {
    lastDebounceTime = millis();
  }

  if ((millis() - lastDebounceTime) > debounceDelay) {
    if (currentButtonState != buttonState) {

      // buttonState = currentButtonState;

      // if (buttonState == LOW) {
      //   counter++;
      //   Serial.println(counter);
      // }

      if(buttonState>=1300&&buttonState<=1450)
      {
        player1.loop(103);
        while(buttonState);
      }    
    }
  }
  lastButtonState = currentButtonState;
}

Would you please check and correct the errors to solve ??

[alto777]

@King_RAJ_Enters

i have to reset the MCU to repeat the action

Please draw a diagram. You are making this harder than it needs to be, and seem to want to ignore or ask questions about any advice.

What parts in addition to a pushbutton are you using in the analog input, and how have you wired them?

Please draw a diagram showing your pushbutton, your Arduino and any other components that are part of the analog reading.

But also answer… why don't you just use the pushbutton as it is intended, that is to say as a digital o put device?

@King_RAJ_Enters

a DF Player is for the analog input triggering purpose

What are you talking about? Ado you want a pushbutton to make the DF Player do something?

a7

[DaveX]

@King_RAJ_Enters

        while(buttonState);

Do you want this to be something other than an infinite loop?

[King_RAJ_Enters]

I want to implant simply this function we use to apply in digital inputs

if(!digitalRead(2))
{
  digitalWrite(ledpin);
  while(!digitalRead(2));
}

in place of this

if(!digitalRead(2))
{
  digitalWrite(ledpin);
}

If we don't put while statement then it triggers the file repeatedly with a very very high speed

But putting a while statement like above remove this defect and triggers the file once after pressing the push button
If we want to trigger the file again then we have to release the button (if pressed and hold in case) and again have to press it.

All those above things happen in case of digital input

But in case of analog input, if we put a while then it trigger the file once and then no function no action on pressing button quickly or slowly or after a gap of time

I need to reset the MCU or power off the switch then restart the system to make action again
So in place of applying any kind of external mono stable or one shot type complex circuits, I just want to place a code for the purpose to solve it

[King_RAJ_Enters]

OK here is the diagram of basic network !!!

@alto777

But also answer… why don't you just use the pushbutton as it is intended, that is to say as a digital o put device?

OK let's start from very beginning as you can observe it at post #12 just above

My target is to remove the continuous re-triggering for a file assigned there in the range of AnalogValue obtained due to the resistor Rref. applied

A simple while statement is not meant to do that unlike digital one
So what kind of technique I need to apply here
Please guide me that way !!!

[alto777]

@King_RAJ_Enters

Please guide me that way !!!

I will try to make any sense at all of your words.

What do you want the effect of different values of Rref. to be? How will that value ever change?

If Rref. doesn't change, why are you using analogRead()?

a7

[DaveX]

@King_RAJ_Enters

If we don't put while statement then it triggers the file repeatedly with a very very high speed

I meant this one:

@King_RAJ_Enters

      if(buttonState>=1300&&buttonState<=1450)
      {
        player1.loop(103);
        while(buttonState);
      }    

If buttonState is ever between 1300 and 1450 and encounters this if statement, it will not ever exit the while() until the power turns off.

[King_RAJ_Enters]

Ya so whats the solution behind ?
What changes we need ??
Please help !!!!!!!

[King_RAJ_Enters]

What's the value of ref. here doesn't matter any of the way
A single analog input line can be used for different levels to do different task like LED or MOTOR or a RELAY or anything by using different resistor values

Now the matter is to trigger a DF Player
where it has some kind of issue

Analog pin is for the purpose while dealing with ESP series where pins are less

If there is a proper option with hardware and coding to increase pins externally
Please tell, I would love to go that way

But not just overviews
I need to have a perfect coding and hardware connections everything
As I never din that kind of thing so no idea about any kind of such stuff !!!

[DaveX]

The solution depends on what you want to have happen instead.

I don't have your hardware or wiring or plan so I don't know what you want to have happen instead.

Maybe a delay()? Perhaps:

      if(buttonState>=1300&&buttonState<=1450)
      {
        player1.loop(103);
        delay(60000);
      }  

...would make your code meet your requirements?

[xfpd]

@King_RAJ_Enters

increase pins

74HC165

Shift Registers - 74HC595 & 74HC165 with Arduino

So far off topic while bumping/complaining another answer to another question was not given within 15 minutes.

[King_RAJ_Enters]

I tried with that kind of delay
It takes a long time to get triggered after pressing the key
and with that time period it repeatedly triggers the file if we keep holding the press button

@DaveX

I don't have your hardware or wiring or plan so I don't know what you want to have happen instead.