I'm making a C# program to work like a poor oscilloscope. I have an Arduino which sends to serial (Serial.write(analogRead(A0)) ) and then the C# has a thread which reads each ms a sample while the main thread refreshes the Chart. My doubt is, should I use Serial.write or Serial.print ?
Is it possible to get 2kS/s ? I'm using the baud rate of 115200 and here is the code.
namespace TEST
{
public partial class Form1 : Form
{
static int buffer_size = 1024;
public static string comboBoxText;
public static int[] buffer = new int[buffer_size];
IEnumerable<int> yData;
static int[] range = Enumerable.Range(0, buffer_size).ToArray();
IEnumerable<int> xData = range;
public static bool flag = true;
public Form1()
{
Random rand = new Random();
InitializeComponent();
for (int c = 0; c<buffer_size;c++) {
buffer[c] = 0;
}
Thread thread1 = new Thread(fillBuffer);
thread1.Start();
comboBox1.Items.Add("Select");
foreach (string s in SerialPort.GetPortNames())
{
comboBox1.Items.Add(s);
}
}
static public void fillBuffer()
{
Thread.Sleep(1000);
SerialPort serialPort1 = new SerialPort();
serialPort1.PortName = "COM5";
serialPort1.BaudRate = 115200;
serialPort1.Open();
while (true)
{
}
}
private void timer1_Tick(object sender, EventArgs e)
{
yData = buffer;
chart1.Series[0].Points.DataBindY(yData);
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
try {
comboBoxText = comboBox1.Text;
}
catch
{
MessageBox.Show("Porta Inválida");
return;
}
comboBox1.Enabled = false;
}
}
Is there anything I can do to sample each 0.5ms and then display the sample as a collection of points ? I'm not getting good results. If anyone can help, thank you!
