Show page

Differences

This shows you the differences between two versions of the page.

--- pm:prj2022:imacovei:home_assist_station [2022/05/23 13:58]
ionut.iordache3010 [Bibliografie/Resurse]
+++ pm:prj2022:imacovei:home_assist_station [2022/05/27 23:20] (current)
ionut.iordache3010 [Software Design]
@@ Line 1: / Line 1: @@
 Iordache Ionut-Iulian
-[[https://www.youtube.com/watch?v=a-41nIb9sMI|Project Presentation]]
+[[https://www.youtube.com/watch?v=86KXBScAoQQ|Project Presentation]]
 ====== Home Assist Station ======
 ===== Introducere =====
@@ Line 89: / Line 90: @@
     * In functia loop() am citit datele venite de la Arduino caracter cu caracter si am construit valorile initiale citite de senzori. In continuare realizam de fiecare data conectarea catre server cu asteptarea aferenta inainte de a incepe o noua transmisie catre server. Functia getValue() prelua stringul meu, separatorul care am ales sa fie virgula, si indexul pentru valoarea pe care o doream din string, valoare aflata intre 2 virgule consecutive.
 </note>
+<code>
+// Arduino Side Code
+#include <SD.h>                       // need to include the SD library
+#include <TMRpcm.h>                   // also need to include this library (used to create instance of TMRpcm)
+#include <SPI.h>                      // and this one too for SPI protocol
+#include "DHT.h"                      // temperature and humidity sensor library
+#include <Wire.h>                     // wire library
+#include <LiquidCrystal_I2C.h>        // liquid crystal with I2C library
+#include <SoftwareSerial.h>           // used to transmit data to ESP8266
+#define ultrasoundTrigger 4           // pin 4 used as output with ultrasonic sensor
+#define ultrasoundEcho 2              // pin 2 used as input with ultrasonic sensor
+#define smokeA0 A0                    // pin A0 used as input with air-quality gas sensor
+#define DHTPIN A1                     // pin A1 used as input with temp&hum(DHT11) sensor
+#define DHTTYPE DHT11                 // sensor type = DHT11
+#define SD_ChipSelectPin 10           // pin 10 used as Chip Select - CS with SD module
+#define SPEAKER_PIN 9                 // pin 9 used as speaker
+long duration;                        // variable for the duration of sound wave travel
+float ultrasoundDistance;             // variable for the distance measurement
+String strArduinoToESP;               // string to transmit from Arduino to ESP8266 NODEMCU
+DHT dht(DHTPIN, DHTTYPE);             // initialize DHT11 sensor
+LiquidCrystal_I2C lcd(0x27, 16, 2);   // set the LCD address to 0x27 for a 16 chars and 2 line display
+TMRpcm tmrpcm;                        // used by SD card to play sound
+SoftwareSerial espSerial(5, 6);       // RX & TX on pins 5 & 6
+void setup() {
+  Serial.begin(9600);
+  espSerial.begin(9600);//TODO
+  // Ultrasonic sensor logic
+  // Serial.println("Ultrasonic Sensor HC-SR04 Test");
+  pinMode(ultrasoundTrigger, OUTPUT); // Sets the trigPin as an OUTPUT
+  pinMode(ultrasoundEcho, INPUT); // Sets the echoPin as an INPUT
+  // Smoke sensor logic
+  //Serial.println(F("Smoke sensor test!"));
+  pinMode(smokeA0, INPUT);
+  // DHT11 sensor logic
+  //Serial.println(F("DHT11 sensor test!"));
+  dht.begin();
+  // LCD&I2C logic
+  lcd.init();                          // initialize the lcd
+  lcd.backlight();                     // Turn on backlight
+  // SDcard logic
+  tmrpcm.speakerPin = SPEAKER_PIN;     // speaker ouput pin 9
+  if(!SD.begin(SD_ChipSelectPin)) {    // check connection and return proper message
+  // Serial.println("SD fail");
+    return;
+  }
+  tmrpcm.setVolume(6);                 // set output volume on pin selected
+  tmrpcm.play("test.wav");             // play sound from file
+  delay(22000);
+  // Welcome message
+  lcd.setCursor(0, 0);                 // set cursor at top left
+  lcd.print("  Welcome Home  ");       // print string
+  lcd.setCursor(0, 1);                 // set cursor at top left
+  lcd.print("       SIR      ");       // print string
+  delay(3000);
+}
+void loop() {
+  delay(1500);                         // process to repeat every 3s (1.5s + 1.5s underneath)
+  // Serial.println("=========");
+  // Read from smoke sensor
+  int smokeVal = analogRead(smokeA0);
+  // Serial.print("Pin A0 smoke: ");
+  // Serial.print(smokeVal);
+  // Serial.println(" ppm");
+  // Read from temp&hum(DHT11) sensor
+  float h = dht.readHumidity();
+  float t = dht.readTemperature();
+  // Serial.print(F("Humidity: "));
+  // Serial.print(h);
+  // Serial.print(F(" % | Temperature: "));
+  // Serial.print(t);
+  // Serial.println(F(" C"));
+  // Clears the trigPin condition
+  digitalWrite(ultrasoundTrigger, LOW);
+  delayMicroseconds(2);
+  // Sets the trigPin HIGH (ACTIVE) for 10 microseconds
+  digitalWrite(ultrasoundTrigger, HIGH);
+  delayMicroseconds(10);
+  digitalWrite(ultrasoundTrigger, LOW);
+  // Reads the echoPin, returns the sound wave travel time in microseconds
+  duration = pulseIn(ultrasoundEcho, HIGH);
+  delay(1000);
+  // Calculating the distance
+  ultrasoundDistance = duration * 0.034 / 2; // Speed of sound wave divided by 2 (go and back)
+  // Displays the distance on the Serial Monitor
+  // Serial.print("Distance: ");
+  // Serial.print(distance);
+  // Serial.println(" cm");
+  // Print on LCD
+  lcd.setCursor(0, 0);                 // set cursor at top left
+  lcd.print("Hum: ");                  // print string
+  lcd.print(h);                        // humidity value
+  lcd.print(" %    ");                 // unit
+  // ---
+  lcd.setCursor(0, 1);                 // set cursor at left space on 2nd row
+  lcd.print("Temp: ");                 // print string
+  lcd.print(t);                        // temperature value
+  lcd.print(" C   ");                  // unit
+  // ---
+  delay(1500);
+  lcd.setCursor(0, 0);                 // set cursor at top left
+  lcd.print("Gas val: ");              // print string
+  lcd.print(smokeVal);                 // gas value
+  lcd.print(" ppm");                   // unit
+  // ---
+  lcd.setCursor(0, 1);                 // set cursor at left space on 2nd row
+  lcd.print("Dist: ");                 // print string
+  lcd.print(ultrasoundDistance);       // distance value
+  lcd.print(" cm");                    // unit
+  // Send data to ESP as a string
+  strArduinoToESP = strArduinoToESP + smokeVal + "," + h + "," + t + "," + ultrasoundDistance; //TODO am h si t ca float si in ex sunt int-uri
+  // Serial.println(strArduinoToESP);
+  espSerial.println(strArduinoToESP);  // transmit string to ESP8266
+  strArduinoToESP = "";                // reinitialize string value
+}
+</code>
+<code>
+// ESP8266 Side Code
+#define BLYNK_TEMPLATE_ID "TMPL3SY-JM6J"
+#define BLYNK_DEVICE_NAME "Blynk LED"
+#define BLYNK_AUTH_TOKEN "RkiSi9tnBfPHmic1gaBwiC9upodMfHy1"
+#define BLYNK_FIRMWARE_VERSION        "0.1.0"
+#define BLYNK_PRINT Serial
+//#define BLYNK_DEBUG
+#define APP_DEBUG
+// Uncomment your board, or configure a custom board in Settings.h
+//#define USE_SPARKFUN_BLYNK_BOARD
+//#define USE_NODE_MCU_BOARD
+//#define USE_WITTY_CLOUD_BOARD
+//#define USE_WEMOS_D1_MINI
+#include "BlynkEdgent.h"
+#include <SoftwareSerial.h>
+String strArduinoToESP;               // string received from Arduino to ESP8266 NODEMCU
+int smokeVal;
+float humVal, tempVal, ultrasoundVal;
+char rdata;                           // received character
+const int motorspeed_pin = D1;
+const int DIRA = D2;
+const int DIRB = D7;
+BLYNK_WRITE(V0)
+{
+  int pinValue = param.asInt();
+  digitalWrite(D5, pinValue);
+}
+BLYNK_WRITE(V5)
+{
+  int pinValue = param.asInt();
+  digitalWrite(D6, pinValue);
+}
+BLYNK_WRITE(V7)
+{
+  int pinValue = param.asInt();
+  if (pinValue == 1) {
+    digitalWrite(motorspeed_pin, HIGH);
+    digitalWrite(DIRA, HIGH);
+    digitalWrite(DIRB, LOW);
+  } else if (pinValue == 0) {
+    digitalWrite(motorspeed_pin, LOW);
+    digitalWrite(DIRA, LOW);
+    digitalWrite(DIRB, LOW);
+  }
+}
+void sendSensorsData() {
+  Blynk.virtualWrite(V1, smokeVal);
+  delay(200);
+  Blynk.virtualWrite(V2, humVal);
+  delay(200);
+  Blynk.virtualWrite(V3, tempVal);
+  delay(200);
+  Blynk.virtualWrite(V4, ultrasoundVal);
+  delay(200);
+}
+void setup()
+{
+  Serial.begin(9600);
+  delay(100);
+  pinMode(D5, OUTPUT);
+  pinMode(D6, OUTPUT);
+  pinMode(motorspeed_pin, OUTPUT);
+  pinMode(DIRA, OUTPUT);
+  pinMode(DIRB, OUTPUT);
+  BlynkEdgent.begin();
+  delay(2000);
+  edgentTimer.setInterval(1000L, sendSensorsData);
+}
+void loop() {
+  if (Serial.available() > 0 ) {
+    rdata = Serial.read();
+    strArduinoToESP = strArduinoToESP + rdata;
+    // Serial.print(rdata);
+    if ( rdata == '\n') {
+      // Serial.println(strArduinoToESP);
+      String l = getValue(strArduinoToESP, ',', 0);
+      String m = getValue(strArduinoToESP, ',', 1);
+      String n = getValue(strArduinoToESP, ',', 2);
+      String p = getValue(strArduinoToESP, ',', 3);
+      smokeVal = l.toInt();
+      humVal = m.toFloat();
+      tempVal = n.toFloat();
+      ultrasoundVal = p.toFloat();
+      // Serial.print("val: ");
+      // Serial.print(smokeVal);
+      // Serial.print(" | val: ");
+      // Serial.print(humVal);
+      // Serial.print(" | val: ");
+      // Serial.print(tempVal);
+      // Serial.print(" | val: ");
+      // Serial.print(ultrasoundVal);
+      // Serial.print(" | val: ");
+      // Serial.println(" |");
+      BlynkEdgent.run();
+      delay(1000);
+      edgentTimer.run();              // Initiates SimpleTimer
+      delay(1000);
+      strArduinoToESP = "";
+    }
+  }
+}
+String getValue(String data, char separator, int index)
+{
+    int found = 0;
+    int strIndex[] = { 0, -1 };
+    int maxIndex = data.length() - 1;
+    for (int i = 0; i <= maxIndex && found <= index; i++) {
+        if (data.charAt(i) == separator || i == maxIndex) {
+            found++;
+            strIndex[0] = strIndex[1] + 1;
+            strIndex[1] = (i == maxIndex) ? i+1 : i;
+        }
+    }
+    return found > index ? data.substring(strIndex[0], strIndex[1]) : "";
+}
+</code>
 ===== Rezultate Obţinute =====
@@ Line 99: / Line 375: @@
 Cea mai smechera chestie pe care am facut-o, deocamdata!
 Concluzii si ce am obtinut poate fii vazut accesand link-ul urmator.
-[[https://www.youtube.com/watch?v=a-41nIb9sMI|Project Presentation]]
+[[https://www.youtube.com/watch?v=86KXBScAoQQ|Project Presentation]]
 </note>
 ===== Download =====