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J1B3-Sensor-boxes/docs/brainstorm/SoftwareDocumentatie/Dev_page.md
2024-03-07 13:11:01 +01:00

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Markdown

### parsing JSON
The data that is send by the nodes is send in json data. We chose this becouse we can easily use the data within javascript, this is called parsing. We use the parced data and send that in to the next function to make the data more acceseble to use in further instences.
```js
const jsonData = JSON.parse(event.data);
// Use the parsed JSON data as needed
handleIncomingData(jsonData);
```
Here is the function that receves the parced JSON data and set it into variables.
```js
function handleIncomingData(data) {
nodeNumber = data.node;
temperature = data.Temp;
humidity = data.Humi;
CO2 = data.eCO2;
TVOC = data.TVOC;
processNodeData(nodeNumber, temperature, humidity, CO2, TVOC);
}
```
function processNodeData(nodeNumber, temperature, humidity, CO2, TVOC) {
// Initialize the array for this node if it doesn't exist yet
if (!sensorData[nodeNumber]) {
sensorData[nodeNumber] = [];
}
// 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();
}
}
function createNodeData(node) {
// Create main div
var nodeData = document.createElement("div");
nodeData.className = "nodeData";
// Create flex-NodeData div
var flexNodeData = document.createElement("div");
flexNodeData.clsName = "flex-NodeData";
// Create p element
var pNode = document.createElement("p");
pNode.textContent = "Node " + node;
// Append p to flex-NodeData
flexNodeData.appendChild(pNode);
// Create flex-LiveData div
var flexLiveData = document.createElement("div");
flexLiveData.className = "flex-LiveData";
// Create data divs (Temperature, Humidity, Light Intensity)
var dataTypes = ["Temperatuur", "Luchtvochtigheid", "CO2", "TVOC"];
var ids = ["temperature", "humidity", "CO2", "TVOC"];
var statusIds = ["tempStatus", "humidStatus", "CO2Status", "TVOCStatus"];
for (var i = 0; i < dataTypes.length; i++) {
var dataDiv = document.createElement("div");
var dataTypeDiv = document.createElement("div");
dataTypeDiv.textContent = dataTypes[i] + ": ";
var pElement = document.createElement("p");
pElement.id = ids[i] + node;
pElement.textContent = "Not connected";
dataTypeDiv.appendChild(pElement);
dataDiv.appendChild(dataTypeDiv);
var statusElement = document.createElement("div");
statusElement.className = "statusElement";
var statusText = document.createElement("p");
statusText.className = "statusText";
statusText.id = statusIds[i];
statusText.textContent = "Not connected";
statusElement.appendChild(statusText);
dataDiv.appendChild(statusElement);
flexLiveData.appendChild(dataDiv);
}
// Append flex-LiveData to flex-NodeData
flexNodeData.appendChild(flexLiveData);
// Create flex-graph div
var flexGraph = document.createElement("div");
flexGraph.className = "flex-graph";
var graphDiv = document.createElement("div");
var graphP = document.createElement("p");
graphP.textContent = "Live graph:";
var liveGraph = document.createElement("div");
liveGraph.id = "liveGraph";
graphDiv.appendChild(graphP);
graphDiv.appendChild(liveGraph);
flexGraph.appendChild(graphDiv);
// Append flex-graph to flex-NodeData
flexNodeData.appendChild(flexGraph);
// Append flex-NodeData to main div
nodeData.appendChild(flexNodeData);
// Check if nodeDataLocation element exists
var nodeDataLocation = document.getElementById("nodeDataLocation");
if (nodeDataLocation) {
// Append main div to nodeDataLocation
nodeDataLocation.appendChild(nodeData);
} else {
console.error("Element with ID 'nodeDataLocation' does not exist.");
}
}
function updateNodeData(node, temperature, humidity, eCO2, TVOC) {
// Update the temperature, humidity and light intensity values
document.getElementById("temperature" + node).textContent = temperature;
document.getElementById("humidity" + node).textContent = humidity;
document.getElementById("CO2" + node).textContent = eCO2;
document.getElementById("TVOC" + node).textContent = TVOC;
// Update the status text
document.getElementById("tempStatus").textContent = "Connected";
document.getElementById("humidStatus").textContent = "Connected";
document.getElementById("CO2Status").textContent = "Connected";
document.getElementById("TVOCStatus").textContent = "Connected";
}