Need Guidance! 1 button to control 3 different outputs with different timings

Projects General Guidance
1

I just bought a Mega 2560 a week ago and am very new to programming and the arduino code. I have 1 input (button) that once pressed, starts 3 outputs. I am trying to program my board to be able to press one button that then, turns two 12v dc motors on for 1 minute, and at the same time turns a 12v solenoid valve on for 3 seconds every 15 seconds (inside 1 minute). The 3 outputs operate within a minute. My motors and solenoid are connected from a pwm pin on the board to a transistor which switches them on and off. Im just trying to figure out how to program 1 input to set off 3 outputs. I have been staring at code and trying to figure this out for the past week but I cannot find a simple solution. I have several programs wrote but I cant figure out how to get it all to work together. Any sort of help would be greatly appreciated!

So basically:

1.) board is looking for button to be pressed
2.)once pressed 2 12v dc motors start
3.) a 12v solenoid valve turns on for 3 seconds
4.)solenoid turns off for 15 seconds (motors still running)
5.)solenoid turns on for 3 seconds (motors still running)
6.)solenoid turns off for 15 seconds (motors still running)
7.)solenoid turns on for 3 seconds (motors still running)
8.)solenoid turns off for 15seconds (motors still running)
9.)solenoid turns on for 3 seconds (motors still running) (at this point the program is running for 57 seconds)
10.)solenoid turns off for 3 seconds (motor still running) (I say its off for "3" seconds because after 3 seconds the loop is over)
11.)Once 1 minute is reached the dc motors and solenoid are stopped.
12.)the board is looking for button to be pressed
13.) .....etc.

2

Im just trying to figure out how to program 1 input to set off 3 outputs.

You can't program in input. You can read an input pin, and then control any number of outputs.

I have been staring at code and trying to figure this out for the past week but I cannot find a simple solution.

Perhaps because what you want to do in response to a single switch press is not a simple task. Why would you expect a simple solution to a complex task?

If the cycle of operations is fixed, there is no problem using delay() to get the interval(s) that you need. While delay() is happening, the switch won't be read, so there is no problem with starting the cycle over again, prematurely. If the cycle is not fixed, and you use millis() to determine when to move to the next stage, there still isn't a problem, since you know that you shouldn't go from, for instance, stage 7 to stage 1 (which is where the switch press would send the program).

What code have you tried to develop? Is the use of delay(), with it's blocking nature, acceptable?

3

The ultra-crude way is:

void loop () {
    If (digitalRead(buttonPin)) {
        digitalWrite(motorPin, HIGH);
        digitalWrite(solenoidPin, HIGH);
        delay(3000);
        digitalWrite(solenoidPin, LOW);
        delay(15000);
...
        delay(3000);
        digitalWrite(motorPin, LOW);
    }
}