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/* TDGino Engine Preheater Control
1		/* TDGino Engine Preheater Control
2
3		Sketch to control a Webasto BBW46 engine preheater and to send sms status messages
4
5		Created 2012
6		by Bo Herrmannsen
7
8		This code is in the public domain.
9
10		The TDGino will need a extra input at pin 7, you will need 2 resistors and a optocoupler for this
11
12		*/
13
14		#include <GSM.h>
15		#include <OneWire.h>
16		#include <DallasTemperature.h>
17
18		GSM gsm;
19
20
21		// Set pin numbers:
22		const int powergsm = 77;
23		const int ctsgsm = 39;
24		const int rtsgsm = 29;
25		const int dcdgsm = 27;
26		const int dtrgsm = 28;
27		const int reset = 35;
28		const int ring = 34;
29		const int ld1 = 25;
30		const int ld2 = 26;
31		const int stato = 76;
32		const int rele1 = 36;
33		const int rele2 = 37;
34		const int sda = 20;
35		const int scl = 21;
36		const int in1 = 84;
37		const int in2 = 83;
38		const int in3 = 7;
39		const int stddtmf = 14;
40		const int q1dtmf = 72;
41		const int q2dtmf = 73;
42		const int q3dtmf = 74;
43		const int q4dtmf = 75;
44		const int puls = 62;
45		const int sonda = 63;
46
47
48		#define ONE_WIRE_BUS sonda // Data wire is plugged into port 2 on the Arduino
49
50
51		OneWire oneWire(ONE_WIRE_BUS); // Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
52
53
54		DallasTemperature sensors(&oneWire); // Pass our oneWire reference to Dallas Temperature.
55
56		DeviceAddress insideThermometer = { 0x28, 0xF3, 0x19, 0x33, 0x03, 0x00, 0x00, 0x9E }; // Array to hold address for inside thermometer
57		DeviceAddress outsideThermometer = { 0x28, 0xA0, 0x34, 0xC3, 0x03, 0x00, 0x00, 0x8C }; // Array to hold address for outside thermometer
58		float tempC=0;
59
60		int Flame; // Status of pin connected to flame sensor (So we can detect if there is a flame or not)
61		int FlameState; // Status of the flame sensor
62		int Fan; // Status of pin connected to fan sensor (So we know when the fan is turned on by the heater)
63		int FanState; // Status of the fan sensor
64		int Heat; // Status of pin connected to heater(circulation pump) sensor (So we know if the heater is on - might seem odd but sometimes the heater stops early due to low fuel etc)
65		int HeatState; // Status of the heater sensor
66		int Oldtemp; // Temp since last flag
67		int Oldtemp1;
68		int Tempflag; // Trigger variable (if temp has raised by X degrees)
69		char phone_num[20]; // Array for the phone number string
70		char string[160]; // Array for the sms, max 160 char's
71		char inchar;
72		int temperature1;
73		int temperature2;
74
75
76		void setup()
77
78		{
79		// set the digital pin as output:
80		pinMode(powergsm, OUTPUT);
81		pinMode(rtsgsm, OUTPUT);
82		pinMode(dtrgsm, OUTPUT);
83		pinMode(reset, OUTPUT);
84		pinMode(ld1, OUTPUT);
85		pinMode(ld2, OUTPUT);
86		pinMode(rele1, OUTPUT);
87		pinMode(rele2, OUTPUT);
88		pinMode(sda, OUTPUT);
89		pinMode(scl, OUTPUT);
90		digitalWrite(rele1, LOW); // Set relay state to avoid false heater start on power up
91		digitalWrite(rele2, LOW);
92
93		// set the digital pin as input:
94		pinMode(ctsgsm, INPUT);
95		pinMode(dcdgsm, INPUT);
96		pinMode(ring, INPUT);
97		pinMode(stato, INPUT);
98		pinMode(in1, INPUT); // Flame on/off
99		pinMode(in2, INPUT); // Heater on/off
100		pinMode(in3, INPUT); // Cabin fan on/off
101		pinMode(stddtmf, INPUT);
102		pinMode(q1dtmf, INPUT);
103		pinMode(q2dtmf, INPUT);
104		pinMode(q3dtmf, INPUT);
105		pinMode(q4dtmf, INPUT);
106		pinMode(puls, INPUT); // Button on board, not used so far
107		pinMode(sonda, INPUT); // DS18B20 one wire bus
108
109		digitalWrite(ld1, HIGH); // Light up LED1 to tell we are starting up
110
111
112		Serial.begin(9600); // Start serial port at 9600 bps
113		Serial.println("System startup"); // Write on the serial/usb port that we are powering up
114		gsm.TurnOn(115200); // Power the GSM module on
115		Serial.println("GSM Module are powered up"); // Write on the serial/usb port that GSM Module are powered up
116		gsm.InitParam(PARAM_SET_1); // Configure the module
117		Serial.println("GSM Module are Configured"); // Write on the serial/usb port that GSM Module are configured
118		gsm.Echo(1); // Enable AT echo
119
120		Serial.println("AT+CMGF=1"); // Set sms mode to text
121		delay(30000);
122		Serial.println("AT+CNMI=3,3,0,0"); // Set module to send SMS data to serial out upon receipt
123		delay(200);
124
125		delay(200);
126
127		sensors.setResolution(insideThermometer, 12); // Set the resolution to 12 bit
128		sensors.setResolution(outsideThermometer, 12);
129		Serial.println("Temp. Sensors set to 12 Bit");
130		FlameState = digitalRead(in1); // Read the initial states
131		HeatState = digitalRead(in2);
132		FanState = digitalRead(in3);
133		Tempflag = 0;
134		digitalWrite(ld2, HIGH); // Light up LED2 to tell we are ready
135		}
136
137
138		void loop()
139
140
141
142		{
143
144
145
146		sensors.requestTemperatures();
147
148		temperature1 = sensors.getTempC(insideThermometer); // Read temp and store it in variable
149		temperature2 = sensors.getTempC(outsideThermometer);
150
151		int response=0;
152
153		Flame = digitalRead(in1); // Read value of flamesensor pin and store it in Flame
154		Heat = digitalRead(in2); // Read value of fan sensor pin and store it in Fan
155		Fan = digitalRead(in3); // Read value of flame sensor pin and store it in Flame
156
157
158		// ****************************************************** Send Temp SMS Section Start ****************************************************
159
160		if(digitalRead(in2) == 0 && temperature1 > 50) // If heater is on and coolant temp is above then send text. This is to let user know engine is now above "cold start" temp and ready. Here its set to 50 degree C
161
162		{
163		if (Tempflag = 1)
164
165		{
166
167		sprintf(string,"Bil klar"); // Engine Ready Text
168		Serial.println(string);
169	-	response=gsm.SendSMS("+4560686615",string); // +********** insert your telephone number
169	+	response=gsm.SendSMS("+45******",string); // +******** insert your telephone number
170		Serial.print("response ");
171		Serial.println(response);
172		Tempflag = 0; // Tempflag set to 0 to avoid endless text's
173		}
174		}
175		// ****************************************************** Send Temp SMS Section End ****************************************************
176
177		// ****************************************************** Flame Sensor Section Start ****************************************************
178
179
180		if (Flame != FlameState ) // The state has changed!
181		{
182
183		if (Flame == LOW)
184		{
185		sprintf(string,"Flame On");
186		Serial.println(string);
187	-	response=gsm.SendSMS("+4560686615",string); // +********** insert your telephone number
187	+	response=gsm.SendSMS("++45******",string); // +******** insert your telephone number
188		Serial.print("response ");
189		Serial.println(response);
190
191		}
192
193		else
194		{
195		sprintf(string,"Flame Off");
196		Serial.println(string);
197	-	response=gsm.SendSMS("+4560686615",string); // +********** insert your telephone number
197	+	response=gsm.SendSMS("+45******",string); // +******** insert your telephone number
198		Serial.print("response ");
199		Serial.println(response);
200		}
201		FlameState = Flame; // Save the new state in our variable
202		}
203
204
205		// ****************************************************** Flame Sensor Section End ******************************************************
206
207		// ****************************************************** Fan Sensor Section Start ******************************************************
208
209		if (Fan != FanState ) // The state has changed!
210		{
211
212		if (Fan == LOW)
213		{
214		sprintf(string,"Fan On");
215		Serial.println(string);
216	-	response=gsm.SendSMS("+4560686615",string); // +********** insert your telephone number
216	+	response=gsm.SendSMS("+45******",string); // +******** insert your telephone number
217		Serial.print("response ");
218		Serial.println(response);
219
220		}
221
222		else
223		{
224		sprintf(string,"Fan Off");
225		Serial.println(string);
226	-	response=gsm.SendSMS("+4560686615",string); // +********** insert your telephone number
226	+	response=gsm.SendSMS("+45******",string); // +******** insert your telephone number
227		Serial.print("response ");
228		Serial.println(response);
229		}
230		FanState = Fan; // Save the new state in our variable
231		}
232
233
234		// ****************************************************** Fan Sensor Section End *********************************************************
235
236		// ****************************************************** Heater Sensor Section Start ****************************************************
237
238		if (Heat != HeatState ) // The state has changed!
239		{
240
241		if (Heat == LOW)
242		{
243		sprintf(string,"Heater On");
244		Serial.println(string);
245	-	response=gsm.SendSMS("+4560686615",string); // +********** insert your telephone number
245	+	response=gsm.SendSMS("+45******",string); // +******** insert your telephone number
246		Serial.print("response ");
247		Serial.println(response);
248
249		}
250
251		else
252		{
253		sprintf(string,"Heater Off");
254		Serial.println(string);
255	-	response=gsm.SendSMS("+4560686615",string); // +********** insert your telephone number
255	+	response=gsm.SendSMS("+45******",string); // +******** insert your telephone number
256		Serial.print("response ");
257		Serial.println(response);
258		}
259		HeatState = Heat; // Save the new state in our variable
260		}
261
262
263		// ****************************************************** Heater Sensor Section End ******************************************************
264
265		// ******************************************************Incoming SMS Section Start ******************************************************
266
267
268		if(Serial1.available() >0) // If a character comes in from the cellular module...
269		{
270		inchar=Serial1.read();
271		if (inchar=='@') // Control char, if sms does start with anything else nothing happens and the sms is deleted
272		{
273
274		delay(10);
275
276		inchar=Serial1.read();
277		if (inchar=='a')
278		{
279
280		delay(10);
281
282		inchar=Serial1.read();
283		if (inchar=='0')
284		{
285		digitalWrite(rele1, LOW); // If 0 after a then turn relay1 off
286		Serial.println("Relay1 Off");
287		Tempflag = 0; // Set tempflag to 0 to avoid multiple engine ready text's
288		}
289		else if (inchar=='1')
290		{
291		digitalWrite(rele1, HIGH); // If 1 after a then turn relay1 on
292		Serial.println("Relay1 On");
293		Tempflag = 1; // Set tempflag to 1 to enable engine ready text
294		}
295		}
296
297		delay(10);
298
299		inchar=Serial1.read();
300		if (inchar=='b')
301		{
302		inchar=Serial1.read();
303		if (inchar=='0')
304		{
305		digitalWrite(rele2, LOW); // If 0 after b then turn relay2 off
306		Serial.println("Relay2 Off");
307		}
308		else if (inchar=='1')
309		{
310		digitalWrite(rele2, HIGH); // If 1 after a then turn relay2 on
311		Serial.println("Relay2 On");
312		}
313		}
314
315		delay(10);
316
317		inchar=Serial1.read();
318		if (inchar=='t')
319		{
320		inchar=Serial1.read();
321		if (inchar=='0') // If 0 after t then send text with cabin temp
322		{
323		int temperature1dec=temperature1;
324		int temperature1uni=(temperature1100)-(temperature1dec100);
325		sprintf(string,"Kabinetemperatur %d.%d Grader",temperature1dec,temperature1uni);
326		Serial.println(string);
327	-	response=gsm.SendSMS("+4560686615",string); // +********** insert your telephone number
327	+	response=gsm.SendSMS("+45******",string); // +******** insert your telephone number
328		Serial.print("response ");
329		Serial.println(response);
330		}
331		else if (inchar=='1') // If 1 after t then send text with coolant temp
332		{
333		int temperature2dec=temperature2;
334		int temperature2uni=(temperature2100)-(temperature2dec100);
335		sprintf(string,"Kølertemperatur %d.%d Grader",temperature2dec,temperature2uni);
336		Serial.println(string);
337	-	response=gsm.SendSMS("+4560686615",string); //+********** insert your telephone number
337	+	response=gsm.SendSMS("+45******",string); //+******** insert your telephone number
338		Serial.print("response ");
339		Serial.println(response);
340		}
341		}
342		Serial1.println("AT+CMGD=1,4"); // Delete all SMS
343		}
344		}
345		}
346
347
348		// ******************************************************Incoming SMS Section End ******************************************************