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amc2022:groupz:start [2022/09/11 23:15] – [Table] ziad001amc2022:groupz:start [2023/01/05 14:38] (current) – external edit 127.0.0.1
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 <code c++> <code c++>
  
-/********************************** 
  * AMC Group Z   * AMC Group Z 
  * Monitoring Drought Effects  * Monitoring Drought Effects
- */+ 
  
-#include <WiFi.h> +#include <WiFi.h> //1 
-#include <PubSubClient.h> +#include <PubSubClient.h> //2 
-#include <EEPROM.h> +#include <EEPROM.h> //3 
-#include <Adafruit_MLX90614.h> +#include <Adafruit_MLX90614.h> //4 
-#include <DFRobot_DHT11.h> +#include <DFRobot_DHT11.h> //5 
-DFRobot_DHT11 DHT;+DFRobot_DHT11 DHT; //6
  
-#define AOUT_PIN 36 +#define AOUT_PIN 36 //7 
-#define DHT11_PIN 14 +#define DHT11_PIN 14 //8 
-#define EEPROM_BYTES 2 +#define EEPROM_BYTES 2 //9 
-//#define RestartPin 27 +//#define RestartPin 27 //10 
-#define uS_TO_S_FACTOR 1000000 +#define uS_TO_S_FACTOR 1000000 //10 
-#define TIME_TO_SLEEP  882+#define TIME_TO_SLEEP  882 //11
  
-RTC_DATA_ATTR int bootCount = 0;+RTC_DATA_ATTR int bootCount = 0; //12
  
-Adafruit_MLX90614 mlx = Adafruit_MLX90614();+Adafruit_MLX90614 mlx = Adafruit_MLX90614(); //13
  
-int dry = 2677; +int dry = 2677; //14 
-int wet = 977;+int wet = 977; //15
  
 // WiFi // WiFi
-const char *ssid = "Vodafone-D285"; +const char *ssid = "Vodafone-D285"; //16 
-const char *password = "JgDHNp4JrEejmGgA";+const char *password = "JgDHNp4JrEejmGgA"; //17
  
 // MQTT Broker // MQTT Broker
-const char *mqtt_broker = "broker.emqx.io"; +const char *mqtt_broker = "broker.emqx.io"; //18 
-const char *topic_1 = "soil_moisture_value_group_z"; +const char *topic_1 = "soil_moisture_value_group_z"; //19 
-const char *topic_2 = "temperature_group_z"; +const char *topic_2 = "temperature_group_z"; //20 
-const char *topic_3 = "air_humidity_group_z"; +const char *topic_3 = "air_humidity_group_z"; //21 
-const char *topic_4 = "temperature2_group_z"; +const char *topic_4 = "temperature2_group_z"; //22 
-const char *topic_5 = "ground_temperature_group_z"; +const char *topic_5 = "ground_temperature_group_z"; //23
-//const char *topic_down = "amc2022/groupz/down"; +
-const int mqtt_port = 1883;+
  
-WiFiClient espClient; +const int mqtt_port = 1883; //24
-PubSubClient client(espClient);+
  
-void callback(char *topic, byte *payload, unsigned int length) { +WiFiClient espClient; //25 
- Serial.print("Message arrived in topic: "); +PubSubClient client(espClient); //26 
- Serial.println(topic);+ 
 +void callback(char *topic, byte *payload, unsigned int length) { //27 
 + Serial.print("Message arrived in topic: ");  
 + Serial.println(topic); 
  Serial.print("Message:");  Serial.print("Message:");
- for (int i = 0; i < length; i++) {+ for (int i = 0; i < length; i++) { 
      Serial.print((char) payload[i]);      Serial.print((char) payload[i]);
  }  }
Line 265: Line 264:
 } }
  
-void print_wakeup_reason(){+void print_wakeup_reason(){ //28
   esp_sleep_wakeup_cause_t wakeup_reason;   esp_sleep_wakeup_cause_t wakeup_reason;
  
Line 276: Line 275:
 } }
      
-void setup() {+void setup() { //29
  
   EEPROM.begin(EEPROM_BYTES);   EEPROM.begin(EEPROM_BYTES);
-  Serial.begin(115200); +  Serial.begin(115200); //30 
-  while (!Serial);+  while (!Serial); //31
  
-  if (!mlx.begin()) {+  if (!mlx.begin()) { //32
     Serial.println("Error connecting to MLX sensor. Check wiring.");     Serial.println("Error connecting to MLX sensor. Check wiring.");
     while (1);     while (1);
   };   };
-  delay(1000);+  delay(1000); //33
      
-  ++bootCount;+  ++bootCount; //34
   Serial.println("Boot number: " + String(bootCount));   Serial.println("Boot number: " + String(bootCount));
-  print_wakeup_reason();+  print_wakeup_reason();//35
  
-  esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * uS_TO_S_FACTOR);+  esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * uS_TO_S_FACTOR); //36
   Serial.println("Setup ESP32 to sleep for every " + String(TIME_TO_SLEEP) +   Serial.println("Setup ESP32 to sleep for every " + String(TIME_TO_SLEEP) +
   " Seconds");   " Seconds");
  
-  Serial.println("Transmitting data.");+  Serial.println("Transmitting data."); //37
   delay(1000);   delay(1000);
-  WiFi.begin(ssid, password); +  WiFi.begin(ssid, password); //38 
-  while (WiFi.status() != WL_CONNECTED) { +  while (WiFi.status() != WL_CONNECTED) { //39 
-    delay(1000); +    delay(1000);  
-    Serial.println("Connecting to WiFi.."); +    Serial.println("Connecting to WiFi.."); //40 
-    Serial.println("Connected to the WiFi network");+    Serial.println("Connected to the WiFi network"); 
      
   //connecting to a mqtt broker   //connecting to a mqtt broker
-  client.setServer(mqtt_broker, mqtt_port);+  client.setServer(mqtt_broker, mqtt_port); //41
   client.setCallback(callback);   client.setCallback(callback);
      
-  while (!client.connected()) {+  while (!client.connected()) {  //42
     String client_id = "esp32-client-";     String client_id = "esp32-client-";
     client_id += String(WiFi.macAddress());     client_id += String(WiFi.macAddress());
     Serial.printf("The client %s connects to the public mqtt broker\n", client_id.c_str());     Serial.printf("The client %s connects to the public mqtt broker\n", client_id.c_str());
          
-if (client.connect(client_id.c_str())) {+if (client.connect(client_id.c_str())) {  //43
     Serial.println("Public emqx mqtt broker connected");     Serial.println("Public emqx mqtt broker connected");
     }      } 
-    else {+    else {  //44
     Serial.print("failed with state ");     Serial.print("failed with state ");
     Serial.print(client.state());     Serial.print(client.state());
Line 325: Line 324:
 } }
  
-void loop() {+void loop() {  //45
  
-  char soil_moisture_value[3];+  char soil_moisture_value[3];  //46
   char air_temperature[3];   char air_temperature[3];
   char air_humidity[3];   char air_humidity[3];
Line 333: Line 332:
   char ground_temperature[3];   char ground_temperature[3];
      
-  int value = analogRead(AOUT_PIN); +  int value = analogRead(AOUT_PIN);   //47 
-  int percHumidity = map(value, dry, wet, 0, 100);+  int percHumidity = map(value, dry, wet, 0, 100);  //48
  
   delay(2000);   delay(2000);
  
-  if ((percHumidity > -5) && (percHumidity < 105)) {  +  if ((percHumidity > -5) && (percHumidity < 105)) { //49 
-     Serial.print("Soil Moisture Value: ");+     Serial.print("Soil Moisture Value: ");  //50
      Serial.println(percHumidity);      Serial.println(percHumidity);
  
-  dtostrf(percHumidity,1,0, soil_moisture_value); +  dtostrf(percHumidity,1,0, soil_moisture_value);  //51  
-  client.publish(topic_1, soil_moisture_value);+  client.publish(topic_1, soil_moisture_value);   //52
   }   }
   delay(2000);   delay(2000);
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   delay(1000);   delay(1000);
      
-  Serial.flush(); +  Serial.flush();  //53
   esp_deep_sleep_start();   esp_deep_sleep_start();
   Serial.println("This will never be printed");   Serial.println("This will never be printed");
Line 552: Line 551:
 The system consists of 3 sensors, ESP32, breadboard, and wires.\\ The system consists of 3 sensors, ESP32, breadboard, and wires.\\
 {{ :amc2022:groupz:final-setup.jpg?nolink&600 |}} {{ :amc2022:groupz:final-setup.jpg?nolink&600 |}}
-**//Figure 9//** [[|Full setup of connections with ESP32 of all sensors involved]], ''Photo by Ziad Helou''+**//Figure 9//** [[|Full setup of connections with ESP32 of all sensors involved]], '' by Ziad Helou''
  
 All the components used are not waterproof, except the capacitive soil moisture sensor from the lower part of the sensor,  and they should be protected.\\ All the components used are not waterproof, except the capacitive soil moisture sensor from the lower part of the sensor,  and they should be protected.\\
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 To connect the DHT11 and the GY-906, we made an 8 inches hole in the bottom of the plastic box using an electric screwdriver to pass the wires to the outside, make them hang from the box, and protect them from the rain.\\ To connect the DHT11 and the GY-906, we made an 8 inches hole in the bottom of the plastic box using an electric screwdriver to pass the wires to the outside, make them hang from the box, and protect them from the rain.\\
 Taking into consideration that water might be percolating from the bottom sides of the box to the sensors during the rain, or a windy rain that might be spraying water to the sensors, a small plastic food container is attached from the bottom so the sensors can be protected from the sides.\\ Taking into consideration that water might be percolating from the bottom sides of the box to the sensors during the rain, or a windy rain that might be spraying water to the sensors, a small plastic food container is attached from the bottom so the sensors can be protected from the sides.\\
-^ {{ :amc2022:groupz:outside_box_1_.jpg?direct }}    ^ +^ {{ :amc2022:groupz:outside_box_1_.jpg?direct }}                              ^ 
-| **//Figure 11//** First phase of building the box  |+| **//Figure 11//** First phase of building the box, ''Photos by Ziad Helou''  |
  
 We placed the ESP32, wires, and breadboard inside a waterproof plastic box.\\ We placed the ESP32, wires, and breadboard inside a waterproof plastic box.\\
 To prevent damage to our system when droplets of water enter the box from the sides after a heavy rain, we made four small openings from the bottom of the plastic box so it can drain the water and prevent any accumulation.\\ To prevent damage to our system when droplets of water enter the box from the sides after a heavy rain, we made four small openings from the bottom of the plastic box so it can drain the water and prevent any accumulation.\\
 The box must be protected from the sun radiation to prevent the high temperature inside it that might affect the battery. For that reason, a small plastic sheet is attached to the top of the box to give shading.\\ The box must be protected from the sun radiation to prevent the high temperature inside it that might affect the battery. For that reason, a small plastic sheet is attached to the top of the box to give shading.\\
-^ {{ :amc2022:groupz:inside_box.jpg?direct }}                          ^ +^ {{ :amc2022:groupz:inside_box.jpg?direct }}                                                    ^ 
-| **//Figure 12//** Second phase of placing the components altogether  |+| **//Figure 12//** Second phase of placing the components altogether, ''Photos by Ziad Helou''  |
  
 To place the capacitive soil moisture sensor in the ground at a 50 cm depth, a 1-meter cable is soldered with the sensor and connected to the breadboard.\\ To place the capacitive soil moisture sensor in the ground at a 50 cm depth, a 1-meter cable is soldered with the sensor and connected to the breadboard.\\
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 Powering ESP32 directly with a 9v battery is not recommended [29]. Therefore we need to use a voltage regulator to supply the ESP32 with 5 volts only. Using the Pololu voltage regulator and a voltmeter, we regulated the voltage to 5.39 Volts, as shown in the picture below, so the voltage that was reaching the ESP32 was 5.39 Volts. Powering ESP32 directly with a 9v battery is not recommended [29]. Therefore we need to use a voltage regulator to supply the ESP32 with 5 volts only. Using the Pololu voltage regulator and a voltmeter, we regulated the voltage to 5.39 Volts, as shown in the picture below, so the voltage that was reaching the ESP32 was 5.39 Volts.
-^{{ :amc2022:groupz:battery-pololu-voltage.jpg?nolink&400 |}}^ +^ {{ :amc2022:groupz:battery-pololu-voltage.jpg?400&nolink }}                                                           ^ 
-|//**Figure 14**// Voltage values reaching the ESP32 when connected with a voltage regulator|+| //**Figure 14**// Voltage values reaching the ESP32 when connected with a voltage regulator, ''Photo by Ziad Helou''  |
  
  
amc2022/groupz/start.1662930934.txt.gz · Last modified: 2023/01/05 14:38 (external edit)