Hello everyone, Newbie at this whole thing. I watched a youtube video on how to put together the electronics on a Railroad Crossing Gate with flashing lights.
I got all the wires in the correct place, and the sketch does work. However, the servos go back to their original state within half a second or so, instead of slowly like they do coming down.
Enclosed is the sketch I am using... Can anyone tell me what I need to change to fix the issue? Like I said, I am new to this whole thing so if someone could tell me which lines I need to change that would help, or even just type the lines of code I need to change would be even better. Thank you for your help... Daniel Edwards
int sensePin1 = A0; //declares A0 as our sensor1 input
int sensePin2 = A1; //declares A1 as our sensor2 input
int Flash = 6; //control for our flasher board
#include<Servo.h>//adds servo control library
int flashcount;//count of flash cycles
int pos = 90; //start position for servos
Servo myservo;//names servo control
void setup() {
Serial.begin(9600);//enables serial monitoring
pinMode(Flash, OUTPUT);//establishing pin 6 as an output pin
myservo.attach(9);//sets up pin 9 as our servo control
}
enum CROSSINGSTATES
{
ST_OFF,
ST_FLASHING1,
ST_FLASHING2,
ST_FLASHING3,
ST_FLASHING4,
ST_ON1,
ST_ON2,
}; //Identifies our 7 crossing states
CROSSINGSTATES crossingState = ST_OFF;// default crossing state
void loop() {
int valA1 = analogRead(sensePin1);//reads sensor 1
int valA2 = analogRead(sensePin2);//reads sensor 2
Serial.println(valA1);
Serial.println(valA2);//prints values in serial monitor
delay(200);
switch (crossingState)
{
case ST_OFF:
crossingoff(valA1, valA2);
break;
case ST_FLASHING1:
crossingflashing1(valA1, valA2);
break;
case ST_FLASHING2:
crossingflashing2(valA1, valA2);
break;
case ST_FLASHING3:
crossingflashing3(valA1, valA2);
break;
case ST_FLASHING4:
crossingflashing4(valA1, valA2);
break;
case ST_ON1:
crossingon1(valA1, valA2);
break;
case ST_ON2:
crossingon2(valA1, valA2);
break;
}
}
void crossingoff(int valA1, int valA2) {
digitalWrite(Flash, LOW);//keeps power down on flasher board
delay(200);
flashcount = 0; //resets flashcounter
if (valA1 > 200 && valA2 < 200) {
crossingState = ST_FLASHING1;
}//if sensePin1 is triggered
if (valA1 < 200 && valA2 > 200) {
crossingState = ST_FLASHING2;
}//if sensePin2 is triggered
}
void crossingflashing1(int valA1, int valA2) {
digitalWrite(Flash, HIGH);//turns on flasher board
for (pos = 90; pos <= 180; pos += 1) //the servo goes from 90 to 180 degreesin steps of 1 degree
{
myservo.write(pos);//controls the servo
delay(15);
crossingState = ST_ON1;
}
}
void crossingflashing2(int valA1, int valA2) {
digitalWrite(Flash, HIGH);//turns on flasher board
for (pos = 90; pos <= 180; pos += 1) //the servo goes from 90 to 180 degreesin steps of 1 degree
{
myservo.write(pos);//controls the servo
delay(15);
crossingState = ST_ON2;
}
}
void crossingon1(int valA1, int valA2) {
digitalWrite(Flash, HIGH); // keeps the flasher on
delay(1000); //1 second delay
flashcount++;//adds 1 to the flashcount
if (valA1 < 200 && valA2 > 200) {
flashcount = 0;
crossingState = ST_FLASHING3; //switches to flashing 3 if the exit sensor is tripped
}
else if (valA1 > 200 && valA2 > 200 && flashcount > 5) {
crossingState = ST_FLASHING4; //if the train is shorter than the distance between the crossing sensors or is sitting in between the sensors
}
}
void crossingon2(int valA1, int valA2) {
digitalWrite(Flash, HIGH); // keeps the flasher on
delay(1000); //1 second delay
flashcount++;//adds 1 to the flashcount
if (valA1 > 200 && valA2 < 200) {
flashcount = 0;
crossingState = ST_FLASHING3; //switches to flashing 3 if the exit sensor is tripped
}
else if (valA1 > 200 && valA2 > 200 && flashcount > 5) {
crossingState = ST_FLASHING4; //if the train is shorter than the distance between the crossing sensors or is sitting in between the sensors
}
}
void crossingflashing3(int valA1, int valA2) {
digitalWrite(Flash, HIGH); // keeps the flasher on
delay(1000); //1 second delay
flashcount++;//adds 1 to the flashcount
if (valA1 > 200 && valA2 > 200 && flashcount > 5) {
{
for (pos = 180; pos >= 90; pos -= 1) // goes from 180 to 90 in increments of 1 degree
myservo.write(pos);
delay(15);
}
delay(1000);
crossingState = ST_OFF;
}
}
void crossingflashing4(int valA1, int valA2) {
digitalWrite(Flash, HIGH); // keeps the flasher on
delay(1000); //1 second delay
flashcount++;//adds 1 to the flashcount
if (valA1 < 200 || valA2 < 200) {
flashcount = 0;
crossingState = ST_FLASHING3;
}
else if (flashcount > 120) {
{
for (pos = 180; pos >= 90; pos -= 1) // goes from 180 to 90 in increments of 1 degree
myservo.write(pos);
delay(15);
}
crossingState = ST_OFF;
}
}
