Using RTC and buttonstate for stopping motor at specific button clicks

Using Arduino Programming Questions
#1

Hello community,

i build a feeding machine for my chickens. Now the problem is i wanted to turn
on the motor at a specific time like 9pm, the motor has a button on the motorshaft so when the motor turns it needs to stop at 2 rotations.

I managed to code it that the motor turns on at a specific time but not stop at 2 button clicks.

Thanks in advance, i hope you guys can help me :slight_smile:

Here my code

/*************************************************************
  Download latest Blynk library here:
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  Arduino, Raspberry Pi and the likes over the Internet.
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  Blynk library is licensed under MIT license
  This example code is in public domain.

 *************************************************************
  This example runs directly on ESP8266 chip.

  Note: This requires ESP8266 support package:
    https://github.com/esp8266/Arduino

  Please be sure to select the right ESP8266 module
  in the Tools -> Board menu!

  Change WiFi ssid, pass, and Blynk auth token to run :)
  Feel free to apply it to any other example. It's simple!
 *************************************************************/

/* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial
#include <RTClib.h>
#include <Wire.h>

RTC_DS1307 rtc;
char buf1[20];

const int OnHour = 15; //SET TIME TO ON RELAY (24 HOUR FORMAT)
const int OnMin = 12;
const int OffHour = 15; //SET TIME TO OFF RELAY
const int OffMin = 12;

const int  buttonPin = 0;    // the pin that the pushbutton is attached to
const int relay = 16;       // the pin that the LED is attached to

// Variables will change:
int buttonPushCounter = 0;   // counter for the number of button presses
int buttonState = 0;         // current state of the button
int lastButtonState = 0; 

#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "lol";

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "lol";
char pass[] = "lol";

void setup()
{
  // Debug console
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);
  rtc.begin();
  pinMode(relay, OUTPUT);
  digitalWrite(relay, HIGH);
  pinMode(buttonPin, INPUT);
}

void loop(){
  DateTime now = rtc.now();
  sprintf(buf1, "%02d:%02d:%02d %02d/%02d/%02d",  now.hour(), now.minute(), now.second() , now.day(), now.month(), now.year());  
  Serial.print(F("Date/Time: "));
  Serial.println(buf1);
  delay(1000); 
  Blynk.run();

    if (buttonState != lastButtonState) {
    // if the state has changed, increment the counter
    if (buttonState == HIGH) {
      // if the current state is HIGH then the button went from off to on:
      buttonPushCounter++;
      Serial.println("on");
      Serial.print("number of button pushes: ");
      Serial.println(buttonPushCounter);
    } else {
      // if the current state is LOW then the button went from on to off:
      Serial.println("off");
    }
    // Delay a little bit to avoid bouncing
    delay(50);
  }
  // save the current state as the last state, for next time through the loop
  lastButtonState = buttonState;


  // turns on the LED every four button pushes by checking the modulo of the
  // button push counter. the modulo function gives you the remainder of the
  // division of two numbers:
  if (now.hour() == OnHour && now.minute() == OnMin && buttonPushCounter % 2 == 0) {
    digitalWrite(relay, HIGH);
  } else if(now.hour() == OffHour && now.minute() == OffMin) {
    digitalWrite(relay, LOW);
  }

}
#2

the motor has a button on the motorshaft

Does that button slip into a buttonhole when the shaft turns?

Or, is there actually a switch on the shaft?

void loop(){

  delay(1000);

Why?

    if (buttonState != lastButtonState) {

You seem to have failed to read the pin that the button is sewn onto. You also failed to explain how the button is sewn on.

#3

Hello PaulS,

so i put a tiny metal sheet on the shaft so when the motor rotates it turns to another plate where it touch each other. and that act like a button.

i do not have so much knowledge about programming but i want to finnish that so fast a possible.

thanks

#4