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Hi,
Can anyone help troubleshoot this code? I'm building a wireless temperature sensor, and reading the values from the receiver end of a xbee into the digital input of a netduino. I found some examples on reading hex values and looping through a byte array online and essentially integrated them into this. Specifically, I'm getting an error about delegate not matching overload. It's the bold and underlined part of the code. Any help is greatly appreciated! Also, if there's a more efficient way to read the hex values coming through the COM2 port then please explain how. THANKS!
error:
"no overload for 'serialPort_DataReceived' matches delegate 'SerialDataReceivedEventHandler'"
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using System;
using System.Threading;
using Microsoft.SPOT;
using Microsoft.SPOT.Hardware;
using SecretLabs.NETMF.Hardware;
using SecretLabs.NETMF.Hardware.Netduino;
using System.IO.Ports;
using System.Text;
using LXIT.Hardware;
namespace NetduinoApplication1
{
public class Program
{
static SerialPort serialPort;
const int Max_Command_Length = 3;
static byte[] commandString = new Byte[Max_Command_Length];
static int commandStringIndex = 0;
public static void Main()
{
// Create buffer for data from xbee
serialPort = new SerialPort("COM2",9600);
serialPort.Open();
serialPort.DataReceived += new SerialDataReceivedEventHandler(serialPort_DataReceived);
Thread.Sleep(Timeout.Infinite);
// Create instance for a SparkFun SerLCD 16x2
SerLCD smallLcd = new SerLCD(SerialPorts.COM1);
// Now start playing with these LCD's
smallLcd.ClearDisplay();
smallLcd.SetCursorPosition(1, 6);
smallLcd.Write("Helmet");
smallLcd.SetCursorPosition(2, 6);
smallLcd.Write("Temps");
// Wait 2 seconds
Thread.Sleep(2000);
}
static void serialPort_DataReceived(object sender, SerialErrorReceivedEventArgs e)
{
int numberOfBytesReceived = serialPort.BytesToRead;
byte[] serialBuffer = new byte[numberOfBytesReceived];
serialPort.Read(serialBuffer, 0, numberOfBytesReceived);
loop();
}
static void loop()
{
SerLCD smallLcd = new SerLCD(SerialPorts.COM1);
if (serialPort.DataBits == 0x7E)
{
for (int i = 1; i < 19; i++)
{
byte discardByte = (byte)serialPort.DataBits;
}
int firstBit = serialPort.DataBits;
int secondBit = serialPort.DataBits;
int reading = secondBit + (firstBit * 256);
double Temp = (reading / 1023) * 1.23;
Temp = (Temp - 0.5) / 0.01;
while (true)
{
string newTemp = Temp.ToString();
Thread.Sleep(500);
// waits for 500 milliseconds
// Clear screen
smallLcd.ClearDisplay();
smallLcd.Write("Player Temp:");
smallLcd.SetCursorPosition(2, 6);
smallLcd.Write(newTemp + "*C");
//wait 2 seconds
Thread.Sleep(2000);
}
// Wait 2 seconds
//Thread.Sleep(2000);
// Turn the LCD back on
//smallLcd.SetDisplay(SerLCD.Status.On);
}
else
{ }
}
}
}
