Merge branch 'main' of gitlab.fdmci.hva.nl:propedeuse-hbo-ict/onderwijs/2023-2024/out-a-se-ti/blok-3/qaajeeqiinii59

arduino/mac_adress.ino

@@ -0,0 +1,13 @@
+// Complete Instructions to Get and Change ESP MAC Address: https://RandomNerdTutorials.com/get-change-esp32-esp8266-mac-address-arduino/
+#include <WiFi.h>
+
+void setup(){
+  Serial.begin(115200);
+  Serial.println();
+  Serial.print("ESP Board MAC Address:  ");
+  Serial.println(WiFi.macAddress());
+}
+ 
+void loop(){
+
+}

arduino/node-code/node-code-final/headerFile.h

@@ -0,0 +1,42 @@
+// include these libraries
+#include <Wire.h>
+#include <Adafruit_SH110X.h>
+#include <Adafruit_SGP30.h>
+#include <DHT.h>
+#include <WiFiMulti.h>
+#include <WiFi.h>
+#include <WebSocketsClient.h>
+#include <nodeCodeHeader.h>
+
+// define pins on esp32
+#define MICPIN 6
+#define DHTPIN 7
+#define SCL 9
+#define SDA 8
+#define DHTTYPE DHT11
+#define SCREEN_WIDTH 128
+#define SCREEN_HEIGHT 64
+#define i2c_adress 0x3c
+#define OLED_RESET -1   //   QT-PY / XIAO
+#define USE_SERIAL Serial
+
+// make new objects
+Adafruit_SH1106G display = Adafruit_SH1106G(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
+DHT dht(DHTPIN, DHTTYPE);
+WiFiMulti WiFiMulti;
+Adafruit_SGP30 sgp;
+WebSocketsClient webSocket;
+
+// define variables
+uint16_t TVOC_base, eCO2_base;
+uint16_t counter = 0;
+uint16_t eCO2 = 0;
+uint16_t TVOC = 0;
+uint16_t interval = 5000;
+float temperature = 0;
+float humidity = 0;
+unsigned long currentMillis;
+unsigned long lastMillis;
+bool errorSGP30 = false;
+bool errorDHT11 = false;
+bool noise = false;

arduino/node-code/node-code-final/node-code-final.ino

@@ -1,49 +1,40 @@
-// Sietse Jonker & Dano van den Bosch
+// include header file into code
-// 28/02/2024
+#include <headerFile.h>
 
-// include these libraries
+// setup function
-#include <Wire.h>
+void setup() {
-#include <Adafruit_SH110X.h>
+  // make serial connection at 115200 baud
-#include <Adafruit_SGP30.h>
+  Serial.begin(115200);
-#include <DHT.h>
-#include <WiFiMulti.h>
-#include <WiFi.h>
-#include <WebSocketsClient.h>
 
-// define pins on esp32
+  // tell display what settings to use
-#define MICPIN 6
+  display.begin(i2c_adress, true);
-#define DHTPIN 7
+  display.clearDisplay();
-#define SCL 9
-#define SDA 8
-#define DHTTYPE DHT11
-#define SCREEN_WIDTH 128
-#define SCREEN_HEIGHT 64
-#define i2c_adress 0x3c
-#define USE_SERIAL Serial
 
-// define node identification number
+  // tell sensors to start reading
-#define nodeIdentificationNumber 1
+  dht.begin();
+  sgp.begin();
 
-// make new objects
+  pinMode(MICPIN, INPUT);
-Adafruit_SH1106G display = Adafruit_SH1106G(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire);
+  pinMode(DHTPIN, INPUT);
-DHT dht(DHTPIN, DHTTYPE);
-WiFiMulti WiFiMulti;
-Adafruit_SGP30 sgp;
-WebSocketsClient webSocket;
   
-// define variables
+  websocketSetup();
-uint16_t TVOC_base, eCO2_base;
+  resetValues();
-uint16_t counter = 0;
+}
-uint16_t eCO2 = 0;
+
-uint16_t TVOC = 0;
+// loop function
-uint16_t interval = 5000;
+void loop() {
-float temperature = 0;
+  // loop the websocket connection so it stays alive
-float humidity = 0;
+  webSocket.loop();
-unsigned long currentMillis;
+
-unsigned long lastMillis;
+  // update when interval is met
-bool errorSGP30 = false;
+  if (currentMillis - lastMillis >= interval){
-bool errorDHT11 = false;
+    lastMillis = millis();
-bool noise = false;
+    update();
+  }
+
+  // update the counter
+  currentMillis = millis();
+}
 
 // hexdump function for websockets binary handler
 void hexdump(const void *mem, uint32_t len, uint8_t cols = 16) {
@@ -112,7 +103,7 @@ void websocketSetup(){
 	webSocket.setReconnectInterval(500);
 }
 
-// fucntion to reset the values if needed
+// function to reset the values if needed
 void resetValues() {
   TVOC_base;
   eCO2_base;
@@ -153,7 +144,7 @@ void update(){
   displayData();
   
   // webSocket.sendTXT("{\"Temp\":\"" + String(temperature) + "\",\"Humi\":\"" + String(humidity) + "\",\"eCO2\":\"" + String(sgp.eCO2) + "\",\"TVOC\":\"" + String(sgp.TVOC) + "\"}");
-  webSocket.sendTXT("{\"node\": \"" + String(nodeIdentificationNumber) + "\", \"Temp\":\"" + String(temperature) + "\",\"Humi\":\"" + String(humidity) + "\",\"eCO2\":\"" + String(sgp.eCO2) + "\",\"TVOC\":\"" + String(sgp.TVOC) + "\"}");
+  webSocket.sendTXT("{\"node\": \"" + String(WiFi.macAddress()) + "\", \"Temp\":\"" + String(temperature) + "\",\"Humi\":\"" + String(humidity) + "\",\"eCO2\":\"" + String(sgp.eCO2) + "\",\"TVOC\":\"" + String(sgp.TVOC) + "\"}");
 
   sgp.getIAQBaseline(&eCO2_base, &TVOC_base);
 
@@ -184,38 +175,3 @@ void displayData() {
   // display the screen                
   display.display();
 }
-
-// setup function
-void setup() {
-  // make serial connection at 115200 baud
-  Serial.begin(115200);
-
-  // tell display what settings to use
-  display.begin(i2c_adress, true);
-  display.clearDisplay();
-
-  // tell sensors to start reading
-  dht.begin();
-  sgp.begin();
-
-  pinMode(MICPIN, INPUT);
-  pinMode(DHTPIN, INPUT);
-  
-  websocketSetup();
-  resetValues();
-}
-
-// loop function
-void loop() {
-  // loop the websocket connection so it stays alive
-  webSocket.loop();
-
-  // update when interval is met
-  if (currentMillis - lastMillis >= interval){
-    lastMillis = millis();
-    update();
-  }
-
-  // update the counter
-  currentMillis = millis();
-}

arduino/node-code/node-code-final/nodeCode.cpp

@@ -0,0 +1,18 @@
+#include "arduino.h"
+#include "nodeCodeHeader.h"
+
+nodeReadings::nodeReadings() {
+}
+
+void nodeReadings::resetValues() {
+    counter = 0;
+    eCO2 = 0;
+    TVOC = 0;
+    temperature = 0;
+    humidity = 0;
+    currentMillis = 0;
+    lastMillis = 0;
+    errorSGP30 = false;
+    errorDHT11 = false;
+    noise = false;
+}

arduino/node-code/node-code-final/nodeCodeFinal.ino

@@ -0,0 +1,17 @@
+#include <nodeCodeHeader.h>
+
+nodeReadings esp32Node();
+
+void setup()
+{
+    // put your setup code here, to run once:
+    esp32Node.setup();
+    esp32Node.websocketSetup();
+    esp32Node.resetValues();
+}
+
+void loop()
+{
+    // put your main code here, to run repeatedly:
+    esp32Node.loop();
+}

arduino/node-code/node-code-final/nodeCodeHeader.cpp

@@ -0,0 +1,63 @@
+#include "arduino.h"
+#include "nodeCodeHeader.h"
+
+nodeReadings::nodeReadings() {
+}
+
+void nodeReadings::setup(){
+    // make serial connection at 115200 baud
+    Serial.begin(115200);
+
+    // tell display what settings to use
+    display.begin(i2c_adress, true);
+    display.clearDisplay();
+
+    // tell sensors to start reading
+    dht.begin();
+    sgp.begin();
+
+    pinMode(MICPIN, INPUT);
+    pinMode(DHTPIN, INPUT);
+
+}
+
+void nodeReadings::loop() {
+    // loop the websocket connection so it stays alive
+    webSocket.loop();
+
+    // update when interval is met
+    if (currentMillis - lastMillis >= interval){
+        lastMillis = millis();
+        update();
+    }
+
+    // update the counter
+    currentMillis = millis();
+}
+
+void nodeReadings::resetValues() {
+    counter = 0;
+    eCO2 = 0;
+    TVOC = 0;
+    temperature = 0;
+    humidity = 0;
+    currentMillis = 0;
+    lastMillis = 0;
+    errorSGP30 = false;
+    errorDHT11 = false;
+    noise = false;
+}
+
+// hexdump function for websockets binary handler
+void hexdump(const void *mem, uint32_t len, uint8_t cols = 16) {
+	const uint8_t* src = (const uint8_t*) mem;
+	USE_SERIAL.printf("\n[HEXDUMP] Address: 0x%08X len: 0x%X (%d)", (ptrdiff_t)src, len, len);
+	for(uint32_t i = 0; i < len; i++) {
+		if(i % cols == 0) {
+			USE_SERIAL.printf("\n[0x%08X] 0x%08X: ", (ptrdiff_t)src, i);
+		}
+		USE_SERIAL.printf("%02X ", *src);
+		src++;
+	}
+	USE_SERIAL.printf("\n");
+}

arduino/node-code/node-code-final/nodeCodeHeader.h

@@ -1,13 +1,18 @@
-#ifndef nodeClass_h
+#ifndef nodeReading_h
-#define nodeClass_h
+#define nodeReading_h
+
 #include "Arduino.h"
+#include "headerFile.h"
+
+
 class nodeReadings {
 
-    private:
     public:
         nodeReadings();
-        void readDht();
+        void setup();
-        void printNode();
+        void loop();
-// class code goes here
+        void resetValues();
+    private:
 };
+
 #endif

docs/rpi-documentation/Flask.md

@@ -0,0 +1,16 @@
+# Flask
+
+
+## Introduction
+Flask is a micro web framework written in Python. It is easy to use and has a lot of documentation. We are going to use Flask to serve our REST api.
+
+## Cheatsheet
+```python
+print(f"Hello world have a nice {args}!")
+```
+This way you can put variables in a string. This is called f-strings.
+
+
+
+## Rules for python
+* You can only use one return statement in a function.

docs/rpi-documentation/websockets.md

@@ -16,7 +16,74 @@ We can only use certain ports like 113, 80, 443. These are common ports and are
 
 A solution for this is to use a reverse proxy. (See [Reverse Proxy](./Reverse-Proxy.md))
 
+## Classes
+
+For the websockets we are going to use 2 classes. One for the nodes and one for the websites. The nodes are going to send data to the website and have multiple variables like temperature, humidity, eCO2, TVOC and sound. The website is going to send data to the nodes like names and settings. For this they have to use a userName and password.
+
+``` mermaid
+classDiagram
+
+client --> User : website client
+client --> Node : esp32 client
+
+namespace raspberry pi clients {
+    class client {
+        +MacAdress
+        sendData()
+    }
+
+    class Node {
+        +eCO2
+        +Temperature
+        +Humidity
+        +TVOC
+        +Sound
+        +Settings
+        changeNodeName(name)
+        updateData(data)
+    }
+
+    class User {
+        +userName
+        +password
+        changeNodeName(data)
+    }
+}
+```
+
+Code of the classes:
+
+``` python
+class client:
+   def __init__(self, macAdress):
+      self.macAdress = macAdress
+
+class node(client):
+   def __init__(self, name, node, temperature, humidity, eCO2, TVOC, sound):
+      super().__init__(macAdress)
+      self.nodeNumber = node
+      self.temperature = temperature 
+      self.humidity = humidity
+      self.eCO2 = eCO2
+      self.TVOC = TVOC
+      self.sound = sound
+      self.name = name
+
+   def updateData(self, temperature, humidity, eCO2, TVOC, sound):
+      self.temperature = temperature
+      self.humidity = humidity
+      self.eCO2 = eCO2
+      self.TVOC = TVOC
+      self.sound = sound
+
+class Website(client):
+   def __init__(self, macAdress, user, password):
+      super().__init__(macAdress)
+      self.passWord = passWord
+      self.userName = userName
+``` 
+
 #### Sources: 
 * https://websockets.readthedocs.io/en/stable/index.html
 
-**Written by Sam**
+**Written by Sam & Sietse**

server/Database/DatabasewithMAC.sql

@@ -1,5 +1,5 @@
 -- MySQL Script generated by MySQL Workbench
--- Fri Mar  8 12:25:17 2024
+-- Wed Mar 13 16:04:58 2024
 -- Model: New Model    Version: 1.0
 -- MySQL Workbench Forward Engineering
 
@@ -44,14 +44,11 @@ ENGINE = InnoDB;
 -- -----------------------------------------------------
 CREATE TABLE IF NOT EXISTS `NodeData`.`Measurement` (
   `NodeID` INT NOT NULL,
+  `TimeStamp` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
   `Type` VARCHAR(45) NULL,
   `Value` FLOAT NULL,
-  `TimeStamp` DATETIME NULL DEFAULT CURRENT_TIMESTAMP,
-  `Node_NodeID` INT NOT NULL,
-  PRIMARY KEY (`NodeID`, `Node_NodeID`),
-  INDEX `fk_Measurement_Node1_idx` (`Node_NodeID` ASC) VISIBLE,
   CONSTRAINT `fk_Measurement_Node1`
-    FOREIGN KEY (`Node_NodeID`)
+    FOREIGN KEY (`NodeID`)
     REFERENCES `NodeData`.`Node` (`NodeID`)
     ON DELETE NO ACTION
     ON UPDATE NO ACTION)

server/Flask/main.py

@@ -0,0 +1,43 @@
+from flask import Flask, request
+import mysql.connector
+
+app = Flask(__name__)
+
+@app.route('/')
+def index():
+    node = request.args.get('node', default = None)
+    dataType = request.args.get('dataType', default = None)
+    return getData(node, dataType)
+
+def getData(node, dataType):
+    try:
+        mydb = mysql.connector.connect(
+            host="localhost",
+            user="root",
+            password="Dingleberries69!",
+            database="NodeData"
+        )
+#turn this into a switch statement
+        cursor = mydb.cursor()
+        if node:
+          query = f"SELECT * FROM Measurement WHERE NodeID = {node}"
+        elif dataType:
+          query = f"SELECT * FROM Measurement WHERE Type = '{dataType}'"
+        else:
+          query = "SELECT * FROM `Measurement`"
+        cursor.execute(query)
+        result = cursor.fetchall()  # Fetch the results
+
+        # Convert the results to a string for display
+        result_str = ', '.join([str(row) for row in result])
+
+        cursor.close()
+        mydb.close()
+
+        return result
+    except mysql.connector.Error as err:
+        print("MySQL Error:", err)
+        return "MySQL Error: " + str(err)
+
+if __name__ == '__main__':
+    app.run(debug=True, host='localhost')

web/index.html

@@ -8,7 +8,6 @@
   <link rel="stylesheet" href="styles.css">
   <title>Node dev page</title>
   <!-- <link rel="icon" type="image/x-icon" href="favicon.ico"> -->
-
 </head>
 
 <body>
@@ -24,11 +23,8 @@
     </nav>
   </header>
 
-
   <div id="nodeDataLocation"></div>
 
-
-
   <!-- Include the js file --> 
   <script src="classes.js"></script>
   <script src="main.js"></script>

web/main.js

@@ -2,6 +2,8 @@
 // arrays and stuff
 const sensorData = {};
 let liveGraphs = [];
+let nodeArray = [];
+let nodeDict = {};
 
 // letiables
 let intervalDelay = 5000;
@@ -45,39 +47,21 @@ function openConnection() {
 openConnection();
 
 function handleIncomingData(data) {
-  nodeNumber = data.node;
+  nodeAdressHandler(data.Node);
+
+  nodeNumber = nodeDict[data.Node];
   temperature = data.Temp;
   humidity = data.Humi;
   CO2 = data.eCO2;
   TVOC = data.TVOC;
 
-  processNodeData(nodeNumber, temperature, humidity, CO2, TVOC);
+  updateNodeData(nodeNumber, temperature, humidity, CO2, TVOC);
 }
 
-function processNodeData(nodeNumber, temperature, humidity, CO2, TVOC) {
+function nodeAdressHandler(node) {
-  // Initialize the array for this node if it doesn't exist yet
+  if (!nodeArray.includes(node)) {
-  if (!sensorData[nodeNumber]) {
+    nodeArray.push(node);
-    sensorData[nodeNumber] = [];
+    nodeDict[node] = nodeArray.length;
-  }
-
-  // Push the new data onto the array for this node
-  sensorData[nodeNumber].push({
-    'node': nodeNumber,
-    'temp': temperature,
-    'humi': humidity,
-    'CO2': CO2,
-    'TVOC': TVOC,
-  });
-
-  // updateNodeData(node, temperature, humidity, lightIntensity)
-  updateNodeData(nodeNumber, temperature, humidity, CO2, TVOC);
-
-  // Log the array for this node
-  console.log(sensorData[nodeNumber]);
-
-  // If the array for this node has more than 10 elements, remove the oldest one
-  if (sensorData[nodeNumber].length >= 10) {
-    sensorData[nodeNumber].shift();
   }
 }
 
@@ -191,8 +175,11 @@ function updateNodeData(node, temperature, humidity, eCO2, TVOC) {
   document.getElementById("TVOCStatus").textContent = "Connected";
 
   // Update the graph
-  liveGraphs[node - 1].updateData(temperature, humidity, eCO2, TVOC);
+  liveGraphs[0].updateData(temperature, humidity, eCO2, TVOC);
-  liveGraphs[node - 1].updateGraph();
+  liveGraphs[0].updateGraph();
+
+  console.log(nodeDict[node]);
+  console.log(nodeArray);
 }
 
 // Call the function to create the HTML structure