HO Automatic Block Signals Schematic.
HOabs.pdf
Searchlight Signal
Arduino Nano
IR Sensor
Arduino Code
#include <Wire.h>
String Rx = "", SendIt = "";
int i = 0, tx1Flag = 0, tx2Flag = 0, tx3Flag = 0, tx3Flags = 0, man = 0;
String dels = "";
String Ts1, Ts2, Ts3 = "", Ts4, Ts5, Ts6, Ts7, Ts8;
unsigned long timenow = 0;
unsigned long timeold = 0;
void setup(){
Serial.begin(9600);
Serial.setTimeout(50);
delay(20);
Serial.println("HO Signal + IR Detection control. V1.0");
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
pinMode(12, OUTPUT);
pinMode(13, OUTPUT);
pinMode(A0, INPUT_PULLUP);
pinMode(A1, INPUT_PULLUP);
pinMode(A2, INPUT_PULLUP);
pinMode(A3, INPUT_PULLUP);
pinMode(A4, INPUT_PULLUP);
pinMode(A5, INPUT_PULLUP);
pinMode(A6, INPUT_PULLUP);
pinMode(A7, INPUT_PULLUP);
digitalWrite(2, HIGH);
digitalWrite(3, HIGH);
digitalWrite(4, LOW);
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
digitalWrite(7, LOW);
digitalWrite(8, HIGH);
digitalWrite(9, HIGH);
digitalWrite(10, HIGH);
digitalWrite(11, HIGH);
digitalWrite(12, HIGH);
digitalWrite(13, HIGH);
}
void loop() {
timenow = millis();
if(timenow > timeold + 13000 && tx3Flag == 1){
if(Ts3 == "1" && tx3Flag == 1){
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
digitalWrite(7, LOW);
Serial.println("st1ghs");
delay(50);
Serial.println("st2ghs");
tx3Flag = 0;
tx3Flags = 0;
}
}
if (Serial.available()==0) {
}
Rx = Serial.readString();
if(Rx.indexOf("\r") > -1){
if(Rx.length() < 3){
Serial.println("<X>");
}
}
// Top Signals Auto or Manual //
if(Rx.indexOf("stmm") > -1){
man = 1;
Serial.println("stms");
}
if(Rx.indexOf("stam") > -1){
man = 0;
Serial.println("stas");
}
// SignalTop 1 //
if(man == 1){
if(Rx.indexOf("st1rhm") > -1){
digitalWrite(2, LOW);
digitalWrite(3, HIGH);
digitalWrite(4, HIGH);
Serial.println("st1rhs");
}
if(Rx.indexOf("st1rlm") > -1){
digitalWrite(2, HIGH);
Serial.println("st1rls");
tx1Flag = 0;
}
if(Rx.indexOf("st1yhm") > -1){
digitalWrite(3, LOW);
digitalWrite(2, HIGH);
digitalWrite(4, HIGH);
Serial.println("st1yhs");
}
if(Rx.indexOf("st1ylm") > -1){
digitalWrite(3, HIGH);
Serial.println("st1yls");
tx1Flag = 0;
}
if(Rx.indexOf("st1ghm") > -1){
digitalWrite(4, LOW);
digitalWrite(2, HIGH);
digitalWrite(3, HIGH);
Serial.println("st1ghs");
}
if(Rx.indexOf("st1glm") > -1){
digitalWrite(4, HIGH);
Serial.println("st1gls");
tx1Flag = 0;
}
// SignalTop 2 //
if(Rx.indexOf("st2rhm") > -1){
digitalWrite(5, LOW);
digitalWrite(6, HIGH);
digitalWrite(7, HIGH);
Serial.println("st2rhs");
}
if(Rx.indexOf("st2rlm") > -1){
digitalWrite(5, HIGH);
Serial.println("st2rls");
tx1Flag = 0;
}
if(Rx.indexOf("st2yhm") > -1){
digitalWrite(6, LOW);
digitalWrite(5, HIGH);
digitalWrite(7, HIGH);
Serial.println("st2yhs");
}
if(Rx.indexOf("st2ylm") > -1){
digitalWrite(6, HIGH);
Serial.println("st2yls");
tx1Flag = 0;
}
if(Rx.indexOf("st2ghm") > -1){
digitalWrite(7, LOW);
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
Serial.println("st2ghs");
}
if(Rx.indexOf("st2glm") > -1){
digitalWrite(7, HIGH);
Serial.println("st2gls");
tx1Flag = 0;
}
}
Rx = "";
//// Read the track switches (HIGH OFF, LOW ON) ////
Ts1 = String(digitalRead(A0));
Ts2 = String(digitalRead(A1));
Ts3 = String(digitalRead(A2));
Ts4 = String(digitalRead(A3));
Ts5 = String(digitalRead(A4));
Ts6 = String(digitalRead(A5));
Ts7 = String(digitalRead(A6));
Ts8 = String(digitalRead(A7));
if(man == 0){
if(Ts1 == "0" && tx1Flag == 0){
tx1Flag = 1;
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
digitalWrite(7, LOW);
digitalWrite(2, LOW);
digitalWrite(3, HIGH);
digitalWrite(4, HIGH);
SendIt = Ts1 + "," + Ts2 + "," + Ts3 + "," + Ts4 + "," + Ts5 + "," + Ts6 + "," + Ts7 + "," + Ts8;
Serial.println(SendIt);
SendIt = "";
delay(50);
Serial.println("st1rhs") ;
delay(50);
Serial.println("st2ghs") ;
delay(1000);
}
if(Ts2 == "0" && tx2Flag == 0){
tx2Flag = 1;
digitalWrite(2, HIGH);
digitalWrite(3, LOW);
digitalWrite(4, HIGH);
digitalWrite(5, LOW);
digitalWrite(6, HIGH);
digitalWrite(7, HIGH);
SendIt = Ts1 + "," + Ts2 + "," + Ts3 + "," + Ts4 + "," + Ts5 + "," + Ts6 + "," + Ts7 + "," + Ts8;
Serial.println(SendIt);
SendIt = "";
delay(50);
Serial.println("st1yhs") ;
delay(50);
Serial.println("st2rhs") ;
delay(1000);
}
if(Ts3 == "0" && tx3Flag == 0){
tx3Flag = 1;
digitalWrite(5, HIGH);
digitalWrite(6, LOW);
digitalWrite(7, HIGH);
digitalWrite(2, HIGH);
digitalWrite(3, HIGH);
digitalWrite(4, LOW);
SendIt = Ts1 + "," + Ts2 + "," + Ts3 + "," + Ts4 + "," + Ts5 + "," + Ts6 + "," + Ts7 + "," + Ts8;
Serial.println(SendIt);
SendIt = "";
delay(50);
Serial.println("st1ghs") ;
delay(50);
Serial.println("st2yhs") ;
delay(1000);
}
if(Ts3 == "1" && tx3Flag == 1 && tx3Flags == 0){
tx1Flag = 0;
tx2Flag = 0;
tx3Flags = 1;
timeold = millis();
//SendIt = tx3Flag + " " + String(timeold) + " " + String(timenow);
//Serial.println(SendIt);
//SendIt = "";
}
}
}
Copyright (c) mgc Perth Western Australia 2015