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Jan 27th, 2020
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  1. // Enable debug prints to serial monitor
  2. #define MY_DEBUG
  3.  
  4. #define MY_GATEWAY_SERIAL
  5. // Enable repeater functionality for this node
  6. #define MY_REPEATER_FEATURE
  7.  
  8. #include <SPI.h>
  9. #include <MySensors.h>
  10. #include <DallasTemperature.h>
  11. #include <OneWire.h>
  12.  
  13. const int PINS[] = {4, 5, 6, 7, 8, 9, 10, 11, 12, 13}; // I/O pins 4, 5, 6, 7, 8, A0, A1 for the relays
  14. #define NUMBER_OF_RELAYS 10 // Total number of attached relays
  15. #define RELAY_ON 1 // GPIO value to write to turn on attached relay
  16. #define RELAY_OFF 0 // GPIO value to write to turn off attached relay
  17.  
  18. #define COMPARE_TEMP 1 // Send temperature only if changed? 1 = Yes 0 = No
  19.  
  20. #define ONE_WIRE_BUS 2 // Pin where dallase sensor is connected
  21. #define MAX_ATTACHED_DS18B20 16
  22. unsigned long SLEEP_TIME = 10000; // Sleep time between reads (in milliseconds)
  23. // Generally, you should use "unsigned long" for variables that hold time
  24. // The value will quickly become too large for an int to store
  25. unsigned long previousMillis = 0; // will store last time LED was updated
  26.  
  27. OneWire oneWire(ONE_WIRE_BUS); // Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
  28. DallasTemperature sensors(&oneWire); // Pass the oneWire reference to Dallas Temperature.
  29.  
  30.  
  31. byte D[16][8] = {
  32. {0x28, 0xFF, 0x67, 0x60, 0x60, 0x17, 0x04, 0xDE}, //101
  33. {0x28, 0xFF, 0xCB, 0xCA, 0x60, 0x17, 0x04, 0x7E}, //102
  34. {0x28, 0xFF, 0xFF, 0xA1, 0x60, 0x17, 0x04, 0xE1}, //103
  35. {0x28, 0xFF, 0x03, 0xBA, 0x60, 0x17, 0x04, 0xCA}, //104
  36. {0x28, 0xFF, 0x14, 0xA2, 0x60, 0x17, 0x04, 0xC3}, //105
  37. {0x28, 0xFF, 0x3A, 0x46, 0x60, 0x17, 0x04, 0xDE}, //106
  38. {0x28, 0xFF, 0xCF, 0xD9, 0x60, 0x17, 0x04, 0xD1}, //107
  39. {0x28, 0xFF, 0xC0, 0xBE, 0x60, 0x17, 0x04, 0xA8}, //108
  40. {0x28, 0xFF, 0x80, 0xDC, 0x60, 0x17, 0x04, 0xD6}, //109
  41. {0x28, 0xFF, 0x77, 0xBA, 0x60, 0x17, 0x04, 0xB8}, //110
  42. {0x28, 0xFF, 0x17, 0x5A, 0x60, 0x17, 0x04, 0xE0}, //111
  43. {0x28, 0xFF, 0x06, 0xD0, 0x60, 0x17, 0x04, 0x93}, //112
  44. {0x28, 0xFF, 0x0E, 0xAF, 0x60, 0x17, 0x04, 0x9F}, //113
  45. {0x28, 0xFF, 0xFA, 0x49, 0x60, 0x17, 0x04, 0x66}, //114
  46. {0x28, 0xFF, 0xFA, 0xC0, 0x33, 0x18, 0x01, 0x94}, //115
  47. {0x28, 0xFF, 0x41, 0x89, 0x60, 0x17, 0x04, 0x60} //116
  48.  
  49. };
  50.  
  51.  
  52. float lastTemperature[MAX_ATTACHED_DS18B20];
  53. int numSensors=0;
  54. bool receivedConfig = false;
  55. bool metric = true;
  56. // Initialize temperature message
  57. MyMessage msg(0,V_TEMP);
  58.  
  59. void before()
  60. {
  61. for (int sensor=1; sensor<=NUMBER_OF_RELAYS; sensor++) {
  62. // Then set relay pins in output mode
  63. pinMode(PINS[sensor-1], OUTPUT);
  64. // Set relay to last known state (using eeprom storage)
  65. digitalWrite(PINS[sensor-1], loadState(sensor)?RELAY_ON:RELAY_OFF);
  66. }
  67.  
  68. // Startup up the OneWire library
  69. sensors.begin();
  70. }
  71.  
  72. void setup()
  73. {
  74. // requestTemperatures() will not block current thread
  75. sensors.setWaitForConversion(false);
  76. }
  77.  
  78. void presentation()
  79. {
  80. // Send the sketch version information to the gateway and Controller
  81. sendSketchInfo("Relay and Temp", "1.0");
  82.  
  83. for (int sensor=1; sensor<=NUMBER_OF_RELAYS+MAX_ATTACHED_DS18B20; sensor++) {
  84. // Register all sensors to gw (they will be created as child devices)
  85.  
  86. if (sensor<=NUMBER_OF_RELAYS){
  87. present(sensor, S_BINARY);
  88. }
  89. else {
  90. present(sensor, S_TEMP);
  91. }
  92. }
  93. }
  94.  
  95. void loop()
  96. {
  97. unsigned long currentMillis = millis();
  98.  
  99. if (currentMillis - previousMillis >= SLEEP_TIME) {
  100. // save the last time you blinked the LED
  101. previousMillis = currentMillis;
  102.  
  103. // Fetch temperatures from Dallas sensors
  104. sensors.requestTemperatures();
  105.  
  106. // query conversion time and sleep until conversion completed
  107. int16_t conversionTime = sensors.millisToWaitForConversion(sensors.getResolution());
  108. // sleep() call can be replaced by wait() call if node need to process incoming messages (or if node is repeater)
  109. sleep(conversionTime);
  110.  
  111. // Read temperatures and send them to controller
  112. for (int i=0; i<MAX_ATTACHED_DS18B20; i++) {
  113.  
  114. // Fetch and round temperature to one decimal
  115. // float temperature = static_cast<float>(static_cast<int>((getConfig().isMetric?sensors.getTempCByIndex(i):sensors.getTempFByIndex(i)) * 10.)) / 10.;
  116. float temperature = sensors.getTempC(D[i]);
  117.  
  118. // Only send data if temperature has changed and no error
  119. if (COMPARE_TEMP == 1) {
  120. if (lastTemperature[i] != temperature && temperature != -127.00 && temperature != 85.00) {
  121. // Send in the new temperature
  122. send(msg.setSensor(i+NUMBER_OF_RELAYS+1).set(temperature,1));
  123. // Save new temperatures for next compare
  124. lastTemperature[i]=temperature;
  125. }
  126. }
  127. else {
  128. if (temperature != -127.00 && temperature != 85.00) {
  129. // Send in the new temperature
  130. send(msg.setSensor(i+NUMBER_OF_RELAYS+1).set(temperature,1));
  131. // Save new temperatures for next compare
  132. lastTemperature[i]=temperature;
  133. }
  134. }
  135. }
  136. }
  137. }
  138.  
  139. void receive(const MyMessage &message)
  140. {
  141. // We only expect one type of message from controller. But we better check anyway.
  142. if (message.type==V_STATUS) {
  143. // Change relay state
  144. digitalWrite(PINS[message.sensor-1], message.getBool()?RELAY_ON:RELAY_OFF);
  145. // Store state in eeprom
  146. saveState(message.sensor, message.getBool());
  147. // Write some debug info
  148. Serial.print("Incoming change for sensor:");
  149. Serial.print(message.sensor);
  150. Serial.print(", New status: ");
  151. Serial.println(message.getBool());
  152. }
  153. }
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