Paid help for simple blinky light project

Community Jobs and Paid Consultancy
#1

I have a project that seems like it is simple, but I do not have the time to learn to code it.
I need help. Three switches activate three relays independently.
I can send a schematic. Help?$
Chris

#2

Hi Chris,

Do you need the circuit to be built, or just the code to control it?

Pat.

#3 
if (digitalRead(button1) == LOW){ // button with internal pullup, connect to Gnd when pressed
digitalWrite (coil1, HIGH); // transistor drive to sink current thru coil
}
else{
digitalWrite (coil1, LOW);
}
if (digitalRead(button2) == LOW){ // button with internal pullup, connect to Gnd when pressed
digitalWrite (coil2, HIGH); // transistor drive to sink current thru coil
}
else{
digitalWrite (coil2, LOW);
}
if (digitalRead(button3) == LOW){ // button with internal pullup, connect to Gnd when pressed
digitalWrite (coil3, HIGH); // transistor drive to sink current thru coil
}
else{
digitalWrite (coil3, LOW);
}

Not too hard.

#4

Why do you need an arduino for this? Can’t you just wire the switches to the relays?

#5

Pat - i just need code.

Cross - Thank you.

Paul - I did not disclose every detail, which is this: the light needs to stay on 2 seconds after a button push, and stay on if the button remains pushed. Then off 2 seconds after released. I copied a script that had a 2 second delay, but it waited 2 seconds to poll the next switch, and I need these all to work independently.

I figure it is simple - but I am totally green. I need to git er done - so willing to pay if needed.

I sure appreciate your help.

// constants won't change. They're used here to set pin numbers:
const int button1Pin = 2;     // the number of the pushbutton1 pin
const int button2Pin = 3;     // the number of the pushbutton2 pin
const int button3Pin = 4;     // the number of the pushbutton3 pin
const int relay1Pin =  7;      // the number of the Relay1 pin
const int relay2Pin =  8;      // the number of the Relay2 pin
const int relay3Pin =  9;      // the number of the Relay3 pin

 
void setup()
{
 // initialize the pushbutton pin as an input:
  pinMode(button1Pin, INPUT_PULLUP);
  pinMode(button2Pin, INPUT_PULLUP);
  pinMode(button3Pin, INPUT_PULLUP);
  pinMode(button1Pin, INPUT);     
  pinMode(button2Pin, INPUT);
  pinMode(button3Pin, INPUT);    
  // initialize the relay pin as an output:
  pinMode(relay1Pin, OUTPUT);
  pinMode(relay2Pin, OUTPUT);
  pinMode(relay3Pin, OUTPUT);
} 
void loop() 
{
  // put your main code here, to run repeatedly:
// variables will change:
int button1State = 0;         // variable for reading the pushbutton status
int button2State = 0;         // variable for reading the pushbutton status
int button3State = 0;         // variable for reading the pushbutton status
 
 
  // read the state of the pushbutton values:
 // button1State = digitalRead(button1Pin);
 // button2State = digitalRead(button2Pin);
 // button3State = digitalRead(button3Pin);
 
 
// For the second button, we just activate the solenoid/relay for two seconds
  if (button1State == HIGH)       
    {
    // turn relay on   
    digitalWrite(relay1Pin, HIGH); 
    delay(2000);    // waits for 2 seconds
    //turn relay off
    digitalWrite(relay1Pin, LOW); 
   }  //end button 1 = high
   ELSE
      {
         if (button2State == HIGH);     
         // turn relay on   
         digitalWrite(relay2Pin, HIGH); 
        delay(2000);    // waits for 2 seconds
        //turn relay off
       digitalWrite(relay2Pin, LOW);
       }  // end button 2 = high
       ELSE   
             {
              If (button3State == HIGH);    
              // turn relay on   
             digitalWrite(relay3Pin, HIGH); 
             delay(2000);    // waits for 2 seconds
             //turn relay off
            digitalWrite(relay3Pin, LOW);
            } // end  button 3 = high
       }  //end button 2 if statement
   }  //end button 1 if statement
}  //endloop
#6

@ElectroChris:

I believe I have code that does this already written and tested. If you can wait a few hours for me to
verify that, it's yours.

#7

Sounds great!!
Thank you.
chris

#8

OK, I found the code I mentioned. It controls four outputs from four inputs, however, the feature of extending the delay would need to be added. I know you said you're green, but if you are willing to learn, it would be fairly simple. I would do it, but I am literally swamped with projects at the moment and I won't have available time for probably a week or two.

Let me know and I can do it when I have time.

#9