Rolling Roof Computer Interface (RRCI)

1String serialin; //incoming serial data
2String str; //store the state  of opened/closed/safe pins
3
4//relays
5#define stop 4
6#define sensor 5
7#define  close 6
8#define open 7
9
10//input sensors
11#define opened 11  // roof open  sensor
12#define closed 12  // roof closed sensor
13#define safe 13   // scope  safety sensor
14
15int led = 10; // the pin the scope safe LED is connected to
16
17unsigned  long end_time;
18bool lost = false; //roof not reporting state
19
20void setup()  {
21end_time=millis()+60000; //roof lost reset timer ~60 seconds  change to suit  your rquirments to determine if roof is lost
22
23  //Begin Serial Comunication(configured  for 9600baud)
24  Serial.begin(9600);
25  //pin relay as OUTPUT
26  pinMode(open,  OUTPUT); 
27  pinMode(close, OUTPUT);
28  pinMode(stop, OUTPUT);
29  pinMode(sensor,  OUTPUT);
30  
31  //pins as INPUT
32  pinMode(closed, INPUT_PULLUP);
33  pinMode(opened,  INPUT_PULLUP); 
34  pinMode(safe, INPUT_PULLUP);
35   
36  //Relay state
37  digitalWrite(open,LOW);
38  digitalWrite(close,LOW);
39  digitalWrite(stop,LOW);
40  digitalWrite(sensor,LOW);
41 
42  Serial.write("RRCI#"); //init string
43   
44}
45
46void loop() {
47  Timer();
48
49  if (digitalRead(safe) == LOW){
50    
51     digitalWrite(led, HIGH); // Turn the LED on
52  }
53  else if (digitalRead(safe)  == HIGH){
54    
55    digitalWrite(led, LOW); // Turn the LED on
56  }
57  
58  //Verify connection by serial
59  while (Serial.available()>0) {
60    //Read  Serial data and alocate on serialin
61 
62    serialin = Serial.readStringUntil('#');
63
64     
65     if (serialin == "on"){ // turn scope sensor on
66      digitalWrite(sensor,HIGH);
67     
68      }
69
70     if (serialin == "off"){ // turn scope sensor off
71      digitalWrite(sensor,LOW);
72     
73      } 
74  
75    if (serialin ==  "x"){ 
76      digitalWrite(open,LOW);
77     
78      }
79    
80    else  if (serialin == "open"){ 
81        if (digitalRead(sensor) == LOW){//turn on  IR scope sensor
82           digitalWrite(sensor,HIGH);
83        }
84        delay(1000);
85        if (digitalRead(safe) == LOW){//open only if scope safe
86           digitalWrite(open,HIGH);
87           //delay(1000);
88          digitalWrite(sensor,LOW);
89        }
90      }
91      if (serialin == "y"){ 
92      digitalWrite(close,LOW);
93      
94      }
95   
96    else if (serialin == "close"){ 
97        if  (digitalRead(sensor) == LOW){//turn on IR scope sensor
98           digitalWrite(sensor,HIGH);
99        }
100        delay(1000);
101        
102        
103        if (digitalRead(safe)  == LOW){//close only if scope safe
104           digitalWrite(close,HIGH);
105           //delay(1000);
106           digitalWrite(sensor,LOW);
107        }
108       
109      }
110  }  
111
112  if (digitalRead(closed) == LOW) { //stop relays when 'closed' reached
113      if  (digitalRead(close) == HIGH){//relays low if it was high
114      digitalWrite(close,LOW);
115      }
116     
117  }
118if (digitalRead(opened) == LOW) {  //stop relays when  'opened' reached
119       
120      if (digitalRead(open) == HIGH){//relays low  if it was high
121      digitalWrite(open,LOW);
122      }
123  }
124if (serialin  == "Parkstatus"){ // exteranl query command to fetch RRCI data
125  
126  Serial.println("0#");
127   serialin = ""; 
128  }
129 
130if (serialin == "get"){ // exteranl query  command to fetch RRCI data - Two Pipelines(||) to make a boolean OR Comparission
131  
132  if (digitalRead(opened) == LOW){
133     str += "opened,"; 
134        
135  }
136  else if (digitalRead(closed) == LOW){
137     str += "closed,";
138  }
139  
140  if ((digitalRead(closed) == HIGH) && (digitalRead(opened) == HIGH)){
141       str += "unknown,";
142  }
143  
144  if (digitalRead(safe) == LOW){
145     str += "safe,";
146     
147  }
148  else if (digitalRead(safe) == HIGH){
149    str += "unsafe,";
150    
151  }
152  
153   if ((digitalRead(closed) == HIGH)  && (digitalRead(opened) == LOW) && (lost == false)){
154     str += "not_moving_o#";
155     end_time=millis()+60000; //reset the timer
156   }
157   
158  if ((digitalRead(closed)  == LOW) && (digitalRead(opened) == HIGH) && (lost == false)){
159     str += "not_moving_c#";
160     end_time=millis()+60000; //reset the timer
161   }
162  if ((digitalRead(closed)  == HIGH) && (digitalRead(opened) == HIGH) && (lost == false)){
163       str +=  "moving#";
164       
165  }     
166  else if ((digitalRead(closed) == HIGH)  && (digitalRead(opened) == HIGH) && (lost == true)){   
167      str += "unknown#";
168  }
169  if (str.endsWith(","))  {
170    str += "unknown#";
171  }
172 
173  Serial.println(str);  //send serial data
174 serialin = "";  
175 str = "";
176//delay(100);
177
178}
179  if (serialin == "Status"){
180  Serial.println("RoofOpen#");
181  
182 }
183serialin  = "";  
184//str = "";
185  } 
186   
187void Timer(){ // detect roof lost
188  if(millis()>=end_time){
189     //60 s have passed!!
190      if ((digitalRead(closed)  == HIGH) && (digitalRead(opened)) == HIGH){
191       lost = true; //where the heck  is the roof position?
192     }
193     
194             
195  } 
196    if ((digitalRead(closed)  == LOW) or (digitalRead(opened)) == LOW){
197             lost = false; //roof state  is known
198             end_time=millis()+60000; //reset the timer  
199  }
200  
201}