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--- iothings:proiecte:2022sric:soilmoisturemonitoring [2023/06/01 15:38]
andreea.paiu created
+++ iothings:proiecte:2022sric:soilmoisturemonitoring [2023/06/01 16:08] (current)
andreea.paiu
@@ Line 1: / Line 1: @@
-ceva
+===== Soil Moisture Monitoring =====
+Author: Andreea Paiu
+=== Introduction ===
+The purpose of this project is to monitor a plant's soil moisture and notice us when the moisture exceeds the set limits.
+=== Hardware Description ===
+The components used for the project were the following:
+  * ESP32 Dev Board
+  * Hygrometre sensor Module - soil humidity
+  * Wires
+The electronic schema:
+{{:iothings:proiecte:2022sric:image_2023-06-01_154707055.png?400|}}
+{{:iothings:proiecte:2022sric:image_2023-06-01_154800737.png?400|}}
+=== Software Description ===
+Used Libraries:
+<code>
+#include <WiFi.h>
+#include <AsyncTCP.h>
+#include <ESPAsyncWebServer.h>
+#include <Firebase_ESP_Client.h>
+#include "addons/TokenHelper.h"
+#include "addons/RTDBHelper.h"
+#include <InfluxDbClient.h>
+#include <InfluxDbCloud.h>
+</code>
+Set-ups:
+  * Firebase
+<code>
+void setup_firebase() {
+  config.api_key = API_KEY;
+  config.database_url = DATABASE_URL;
+  if (Firebase.signUp(&config, &auth, "", "")){
+    Serial.println("ok");
+    signupOK = true;
+  }
+  else{
+    Serial.printf("%s\n", config.signer.signupError.message.c_str());
+  }
+  config.token_status_callback = tokenStatusCallback;
+  Firebase.begin(&config, &auth);
+  Firebase.reconnectWiFi(true);
+}
+</code>
+  * Routing
+<code>
+void setup_routing() {
+  server.on("/", HTTP_GET, MainPage);
+  server.on("/read_moisture", HTTP_GET, SoilMoisture);
+  server.on("/update_low_limit_slide", HTTP_GET, UpdateLowLimitSlide);
+  server.on("/update_high_limit_slide", HTTP_GET, UpdateHighLimitSlide);
+  server.on("/read_low_limit", HTTP_GET, ReadLowLimit);
+  server.on("/read_high_limit", HTTP_GET, ReadHighLimit);
+  server.onNotFound(notFound);
+  server.begin();
+}
+</code>
+  * Wifi
+<code>
+WiFi.mode(WIFI_STA);
+  WiFi.begin(ssid, password);
+  while(WiFi.waitForConnectResult() != WL_CONNECTED){
+    Serial.print(".");
+    delay(100);
+  }
+</code>
+  * Tasks
+<code>
+xTaskCreatePinnedToCore(
+                    Task1code,   /* Task function. */
+                    "Task1",     /* name of task. */
+,       /* Stack size of task */
+                    NULL,        /* parameter of the task */
+,           /* priority of the task */
+                    &Task1,      /* Task handle to keep track of created task */
+);          /* pin task to core 0 */
+  xTaskCreatePinnedToCore(
+                    Task2code,   /* Task function. */
+                    "Task2",     /* name of task. */
+,       /* Stack size of task */
+                    NULL,        /* parameter of the task */
+,           /* priority of the task */
+                    &Task2,      /* Task handle to keep track of created task */
+);          /* pin task to core 1 */
+}
+</code>
+We use both cores:
+First core get data and sent them in InfluxDB
+<code>
+void Task1code( void * pvParameters ){
+   Serial.println(xPortGetCoreID());
+  for(;;){
+    sensor.clearFields();
+    sensor_analog = analogRead(sensor_pin);
+    _moisture = ( 100 - ( (sensor_analog/4095.00) * 100 ) );
+    sensor.addField("value", _moisture);
+    Serial.print("Writing: ");
+    Serial.println(client.pointToLineProtocol(sensor));
+    if (!client.writePoint(sensor)) {
+      Serial.print("InfluxDB write failed: ");
+      Serial.println(client.getLastErrorMessage());
+    }
+    Serial.print("Moisture = ");
+    Serial.print(_moisture);
+    Serial.println("%");
+    delay(1000);
+  }
+}
+</code>
+Second core add limit value in Firebase and check values
+<code>
+void Task2code( void * pvParameters ){
+  String low_val = String(0);
+  String high_val = String(100);
+  for(;;){
+  Serial.print("Task2 running on core ");
+  Serial.println(xPortGetCoreID());
+  String low_val = String(0);
+  if (Firebase.RTDB.getInt(&fbdo, "/limit/low")) {
+    if (fbdo.dataType() == "int") {
+      low_val = fbdo.intData();
+      Serial.println(low_val);
+    }
+  }
+  if (Firebase.RTDB.getInt(&fbdo, "/limit/high")) {
+    if (fbdo.dataType() == "int") {
+      high_val = fbdo.intData();
+      Serial.println(high_val);
+    }
+  }
+  Serial.println(_moisture);
+  Serial.println("comparatie");
+  digitalWrite(led2, LOW);
+  if(_moisture > high_val.toInt() || _moisture < low_val.toInt())
+    digitalWrite(led2, HIGH);
+  delay(1500);
+  }
+}
+</code>
+=== Demo ===
+[[https://drive.google.com/file/d/1VUl034nP9WEL0LMjl8Zj2UlxCzE9lBbi/view?usp=sharing]]
+{{:iothings:proiecte:2022sric:image_2023-06-01_160036058.png?400|}}
+{{:iothings:proiecte:2022sric:image_2023-06-01_160115076.png?400|}}
+{{:iothings:proiecte:2022sric:image_2023-06-01_160212880.png?400|}}
+{{:iothings:proiecte:2022sric:image_2023-06-01_160323681.png?600|}}
+{{:iothings:proiecte:2022sric:image_2023-06-01_160352879.png?400|}}
+=== References ===
+[[http://www.esp32learning.com/code/esp32-and-soil-moisture-sensor-example.php]]
+[[http://www.esp32learning.com/code/esp32-and-soil-moisture-sensor-example.php]]
+[[https://randomnerdtutorials.com/esp32-esp8266-input-data-html-form/]]
+[[https://randomnerdtutorials.com/esp32-dual-core-arduino-ide/]]
+[[https://randomnerdtutorials.com/esp32-firebase-realtime-database]]