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edit app.js for file storage

master
Elfreda Kwawu 2024-04-17 12:44:47 -04:00
parent de7d6e8293
commit f6e172b616
1 changed files with 12 additions and 9 deletions
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21
apps/phystrax/app.js
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@ -128,7 +128,7 @@ function drawScreen(message) {
g.drawString(' BPM', g.getWidth() / 2 + 42, g.getHeight() / 2 + 12);
} else {
g.setFont('6x8', 2);
g.drawString('No data', g.getWidth() / 2, g.getHeight() / 2 + 10);
g.drawString('No data', g.getWidth() / 2, g.getHeight() / 2 + 5);
g.setFont('6x8', 1);
g.drawString(message || 'Press button to start', g.getWidth() / 2, g.getHeight() / 2 + 30);
}
@ -139,19 +139,22 @@ function drawScreen(message) {
}
function saveDataToCSV() {
let csvContent = "Timestamp,Heart Rate(bpm),HRV(ms)\n";
let fileName = "heart_rate_data.csv";
let file = require("Storage").open(fileName, "a"); // Open the file for appending
// Check if the file is empty (i.e., newly created)
if (file.getLength() === 0) {
// Write the header if the file is empty
file.write("Timestamp,Heart Rate(bpm),HRV(ms)\n");
}
// Append the data
logData.forEach(entry => {
// Scale HRV - placeholder
let scaledHRV = entry.hrv * 13.16;
csvContent += `${entry.timestamp},${entry.heartRate},${scaledHRV}\n`;
file.write(`${entry.timestamp},${entry.heartRate},${entry.hrv}\n`);
});
// Write data to the CSV file with the desired file name
let fileName = "heart_rate_data.csv";
require("Storage").write(fileName, csvContent);
}
setWatch(function() {
if (!isMeasuring) {
startMeasure();