Combining two sketches, help!

Using Arduino Programming Questions
22

your correction made the program compile without errors, however now the counting is just not occurring according to the serial monitor. this might be a problem on the physical side since I'm in the process of moving the circuit into its "permanent" home.

To clarify what I want to happen when, I'm using the blink program to run a motor which in turn moves an arm up and down. I'm using the count program to count how many times the arm breaks the photo gates beam. So I need to blink program to run with the count program so that it is counting continuously while the motor runs.

Here is the current code:

//blink without delay
const int ledPin = 9;

int ledState = LOW;
long previousMillis = 0;

long interval = 1000;

// photogate
const int inPinUp = 6;
const int inPinDown = 7;
int channel = 1;
int buttonUpState = 0;
int buttonDownState = 0;
int prevBtnUp = LOW;
int prevBtnDwn = LOW;
unsigned long lastBtnUp = 0;
unsigned long lastBtnDwn = 0;
int transInt = 50;

void setup ()
{
  pinMode (ledPin, OUTPUT);
  Serial.begin(9600);
  pinMode(inPinUp, INPUT);
  pinMode(inPinDown, INPUT);
}

void loop ()
{
  buttonUpState = digitalRead(inPinUp); //begin photogate
  buttonDownState = digitalRead(inPinDown);

  
    if (buttonUpState == HIGH && prevBtnUp == LOW)
    {
      if (millis() - lastBtnUp > transInt)
      {
      channel++;

    lastBtnUp = millis();
    Serial.println(channel);
  }
}
  prevBtnUp = buttonUpState;


  //blink without delay
  unsigned long currentMillis = millis ();

  if(currentMillis - previousMillis > interval) {
    previousMillis = currentMillis;

    if (ledState == LOW)
      ledState = HIGH;
    else
      ledState = LOW;

    digitalWrite(ledPin, ledState);
  }
}

(and yes I know indenting doesn't do anything for the compiler but it made it easier for me to read)