# include "MotorLED.h"

MotorLED aMotorLED;

MotorLED mySeveralMotorLED[2];
unsigned char myMotorLED[2][2] = {{6, 7}, {4, 5}};

void setup() {
  Serial.begin(115200);
  Serial.println("\nHello Idiot Lights\n");

  aMotorLED.begin(2, 3);

  for (unsigned char ii = 0; ii < 2; ii++)
    mySeveralMotorLED[ii].begin(myMotorLED[ii][0], myMotorLED[ii][1]);
}

void loop() {

//  aMotorLED.update(analogRead(A0) + (analogRead(A1) >> 3));

  aMotorLED.update(analogRead(A0));

  mySeveralMotorLED[1].update(1023 - analogRead(A0));



  delay(50);
}


sketch.ino

diagram.json

# include <Arduino.h>//
# include "MotorLED.h"

void MotorLED::begin(unsigned char posPin, unsigned char negPin, long value)
{
  redPin = negPin;
  greenPin = posPin;
  theValue = value;
  
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
}

void MotorLED::update()
{
  unsigned long now = millis();

  if (now - timer > 477) {
    digitalWrite(greenPin, LOW);
    digitalWrite(redPin, LOW);
  }
}

void MotorLED::update(long value)
{
  unsigned long now = millis();

  if (value > theValue) {
    digitalWrite(greenPin, HIGH);
    digitalWrite(redPin, LOW);
    timer = now;
  }
  if (value < theValue) {
    digitalWrite(greenPin, LOW);
    digitalWrite(redPin, HIGH);
    timer = now;
  }
  if (value == theValue)
    if (now - timer > 167) {
      digitalWrite(greenPin, LOW);
      digitalWrite(redPin, LOW);
    }

  theValue = value;     // amIRight?
}


MotorLED.cpp

typedef unsigned char (*pfp)(unsigned char);

struct MotorLED {
public:
  void begin(unsigned char posPin, unsigned char negPin, long value = 0);
//
  void update();
  void update(long);

//  unsigned char uolPress();
//  unsigned char uolRelease();
//  unsigned char uolStill();

private:  
  unsigned char redPin, greenPin;
  long theValue;
  unsigned long timer;
};


/*
  unsigned char state = 0;      // normally high button all interpretations  

  unsigned char thePin;
  unsigned long lastTime;
  unsigned char iStill = 0;
  unsigned char lastUOL;
};

*/