任何想法为什么我的视觉工作室不会从pi发送到windowsform但是当我使用我学校的视觉工作室时它会发送相同的版本）。我是否必须下载任何特定的东西或任何东西才能使它工作？请帮忙。
这里也是我的代码。如果有人可以通过它来帮助我（学校的项目）会很酷！非常感谢！
string strConnectionString =
ConfigurationManager.ConnectionStrings["DataCommsDBConnection"].ConnectionString;
DataComms dataComms;
public delegate void myprocessDataDelegate(string strData);
private void saveWaterSensorDataToDB(string strTime, string strWaterValue, string strStatus)
{
SqlConnection myConnect = new SqlConnection(strConnectionString);
string strCommandText = "INSERT MySensor (TimeOccurred, SensorValue, SensorStatus) +" +
"VALUES (@time, @value, @status)";
SqlCommand updateCmd = new SqlCommand(strCommandText, myConnect);
updateCmd.Parameters.AddWithValue("@time", strTime);
updateCmd.Parameters.AddWithValue("@value", strWaterValue);
updateCmd.Parameters.AddWithValue("@status", strStatus);
myConnect.Open();
int result = updateCmd.ExecuteNonQuery();
myConnect.Close();
}
private string extractStringValue(string strData, string ID)
{
string result = strData.Substring(strData.IndexOf(ID) + ID.Length);
return result;
}
private float extractFloatValue(string strData, string ID)
{
return (float.Parse(extractStringValue(strData, ID)));
}
private void handleWaterSensorData(string strData, string strTime, string ID)
{
string strWaterValue = extractStringValue(strData, ID);
txtWaterValue.Text = strWaterValue;
txtWaterLevel.Text = strWaterValue;
float fWaterValue = extractFloatValue(strData, ID);
string status = "";
if (fWaterValue <= 500)
status = "Dry";
else
status = "Wet";
txtRoomStatus.Text = status;
}
private void handleButtonData(string strData, string strTime, string ID)
{
string strbuttonValue = extractStringValue(strData, ID);
txtButtonValue.Text = strbuttonValue;
txtDoorBell.Text = strbuttonValue;
}
private void extractSensorData(string strData, string strTime)
{
if (strData.IndexOf("WaterLevel=") != -1)
handleWaterSensorData(strData, strTime, "WaterLevel=");
else if (strData.IndexOf("BUTTON=") != -1)
handleButtonData(strData, strTime, "BUTTON=");
}
public void handleSensorData(string strData)
{
string dt = DateTime.Now.ToString();
extractSensorData(strData, dt);
string strMessage = dt + ":" + strData;
lbDataComms.Items.Insert(0, strMessage);
}
public void processDataReceive(string strData)
{
myprocessDataDelegate d = new myprocessDataDelegate(handleSensorData);
lbDataComms.Invoke(d, new object[] { strData });
}
public void commsDataReceive(string dataReceived)
{
processDataReceive(dataReceived);
}
public void commsSendError(string errMsg)
{
MessageBox.Show(errMsg);
processDataReceive(errMsg);
}
private void InitComms()
{
dataComms = new DataComms();
dataComms.dataReceiveEvent += new DataComms.DataReceivedDelegate(commsDataReceive);
dataComms.dataSendErrorEvent += new DataComms.DataSendErrorDelegate(commsSendError);
}
public frmDataComms()
{
InitializeComponent();
}
private void frmDataComms_Load(object sender, EventArgs e)
{
InitComms();
}
private void btnClear_Click(object sender, EventArgs e)
{
lbDataComms.Items.Clear();
}
private void btnSendLight_Click(object sender, EventArgs e)
{
dataComms.sendData("SENDWATER");
}
private void btnSendButton_Click(object sender, EventArgs e)
{
dataComms.sendData("SENDBUTTON");
}
private void btnCmd_Click(object sender, EventArgs e)
{
dataComms.sendData(txtCmd.Text);
}
private void btnSendAll_Click(object sender, EventArgs e)
{
dataComms.sendData("SENDALL");
}
private void btnSendTemp_Click(object sender, EventArgs e)
{
dataComms.sendData("SENDTEMP");
}
}
表格***
namespace DataCommsRpi
{
public sealed class StartupTask : IBackgroundTask
{
const int MODE_SENDWATER = 1;
const int MODE_SENDBUTTON = 2;
const int MODE_SENDALL = 3;
const int MODE_SENDTEMP = 4;
static int curMode;
Pin waterPin = Pin.AnalogPin2;
IButtonSensor button = DeviceFactory.Build.ButtonSensor(Pin.DigitalPin4);
Pin tempPin = Pin.AnalogPin0;
DataComms dataComms;
string strDataReceived = "";
private bool buttonPressed = false;
private bool prevButtonStatus = false;
int moistureAdcValue = 800;
double tempDegree = 20;
private bool moistureWet = false;
private bool moistureDry = false;
private bool tempHot = false;
private bool tempCold = false;
private void Sleep(int NoOfMs)
{
Task.Delay(NoOfMs).Wait();
}
private async void startWaterMonitoring()
{
int iPrevAdcValue = 800, iReadAdcValue, iDiff;
await Task.Delay(100);
while (true)
{
Sleep(500);
iReadAdcValue = DeviceFactory.Build.GrovePi().AnalogRead(waterPin);
if (iPrevAdcValue > iReadAdcValue)
iDiff = iPrevAdcValue - iReadAdcValue;
else
iDiff = iReadAdcValue - iPrevAdcValue;
iPrevAdcValue = iReadAdcValue;
if (iDiff < 100)
moistureAdcValue = iReadAdcValue;
}
}
private async void startTempMonitoring()
{
await Task.Delay(100);
int adcValue; double tempCalculated = 0, R;
while (true)
{
Sleep(1000);
adcValue = DeviceFactory.Build.GrovePi().AnalogRead(tempPin);
int B = 4250, R0 = 100000;
R = 100000 * (1023.0 - adcValue) / adcValue;
tempCalculated = 1 / (Math.Log(R / R0) / B + 1 / 298.15) - 273.15;
if (!Double.IsNaN(tempCalculated))
tempDegree = tempCalculated;
}
}
private async void startButtonMonitoring()
{
await Task.Delay(100);
while(true)
{
Sleep(100);
string buttonState = button.CurrentState.ToString();
if (buttonState.Equals("On"))
{
Sleep(100);
buttonState = button.CurrentState.ToString();
if(buttonState.Equals("On"))
{
buttonPressed = true;
}
}
}
}
private void commsDataReceive(string dataReceived)
{
strDataReceived = dataReceived;
Debug.WriteLine("Data Received : " + strDataReceived);
}
private void sendDataToWindows(string strDataOut)
{
try
{
dataComms.sendData(strDataOut);
Debug.WriteLine("Sending Msg : " + strDataOut);
}
catch(Exception)
{
Debug.WriteLine("ERROR. Did you forget to initComms()?");
}
}
private void initComms()
{
dataComms = new DataComms();
dataComms.dataReceiveEvent += new DataComms.DataReceivedDelegate(commsDataReceive);
}
private void handleModeSendWater()
{
if (moistureAdcValue <= 500)
moistureWet = true;
else
moistureWet = false;
if (moistureAdcValue <= 500 && moistureDry != moistureWet)
sendDataToWindows("WaterLevel=" + moistureAdcValue + " wet");
if (moistureAdcValue > 500 && moistureDry != moistureWet)
sendDataToWindows("WaterLevel=" + moistureAdcValue + " dry");
moistureDry = moistureWet;
if (strDataReceived.Equals("SENDBUTTON"))
{
curMode = MODE_SENDBUTTON;
Debug.WriteLine("===Entering MODE_SENDBUTTON===");
}
else if (strDataReceived.Equals("SENDALL"))
{
curMode = MODE_SENDALL;
Debug.WriteLine("===Entering MODE_SENDALL");
}
else if (strDataReceived.Equals("SENDTEMP"))
{
curMode = MODE_SENDTEMP;
Debug.WriteLine("===Entering MODE_SENDTEMP");
}
strDataReceived = "";
}
private void handleModeSendTemperature()
{
if (tempDegree <= 31)
tempCold = true;
else
tempCold = false;
if (tempDegree <= 31 && tempCold != tempHot)
{
Sleep(3000);
sendDataToWindows("Temperature = " + tempDegree.ToString("N2") + " : cold");
}
else if (tempDegree >= 32 && tempCold != tempHot)
{
Sleep(3000);
sendDataToWindows("Temperature = " + tempDegree.ToString("N2") + " : hot");
}
if (strDataReceived.Equals("SENDBUTTON"))
{
curMode = MODE_SENDBUTTON;
Debug.WriteLine("===Entering MODE_SENDBUTTON===");
}
else if (strDataReceived.Equals("SENDALL"))
{
curMode = MODE_SENDALL;
Debug.WriteLine("===Entering MODE_SENDALL");
}
else if (strDataReceived.Equals("SENDWATER"))
{
curMode = MODE_SENDWATER;
Debug.WriteLine("===Entering MODE_SENDWATER===");
}
}
private void handleModeSendButton()
{
if(buttonPressed != prevButtonStatus)
{
sendDataToWindows("BUTTON=" + buttonPressed);
}
prevButtonStatus = buttonPressed;
buttonPressed = false;
if(strDataReceived.Equals("SENDWATER"))
{
curMode = MODE_SENDWATER;
Debug.WriteLine("===Entering MODE_SENDWATER===");
}
else if(strDataReceived.Equals("SENDALL"))
{
curMode = MODE_SENDALL;
Debug.WriteLine("===Entering MODE_SENDALL");
}
else if (strDataReceived.Equals("SENDTEMP"))
{
curMode = MODE_SENDTEMP;
Debug.WriteLine("===Entering MODE_SENDTEMP");
}
}
private void handleModeSendAll()
{
Sleep(5000);
sendDataToWindows("Water Level=" + moistureAdcValue);
sendDataToWindows("Temperature = " + tempDegree.ToString("N2"));
if (strDataReceived.Equals("SENDWATER"))
{
curMode = MODE_SENDWATER;
Debug.WriteLine("===Entering MODE_SENDWATER");
}
else if (strDataReceived.Equals("SENDBUTTON"))
{
curMode = MODE_SENDBUTTON;
Debug.WriteLine("===Entering MODE_SENDBUTTON");
}
else if (strDataReceived.Equals("SENDTEMP"))
{
curMode = MODE_SENDTEMP;
Debug.WriteLine("===Entering MODE_SENDTEMP");
}
}
public void Run(IBackgroundTaskInstance taskInstance)
{
//
// TODO: Insert code to perform background work
//
// If you start any asynchronous methods here, prevent the task
// from closing prematurely by using BackgroundTaskDeferral as
// described in http://aka.ms/backgroundtaskdeferral
//
initComms();
startButtonMonitoring();
startWaterMonitoring();
startTempMonitoring();
curMode = MODE_SENDWATER;
Debug.WriteLine("===Entering MODE_SENDWATER===");
while (true)
{
Sleep(300);
if (curMode == MODE_SENDWATER)
handleModeSendWater();
else if (curMode == MODE_SENDBUTTON)
handleModeSendButton();
else if (curMode == MODE_SENDALL)
handleModeSendAll();
else if (curMode == MODE_SENDTEMP)
handleModeSendTemperature();
else
Debug.WriteLine("ERROR: Invalid Mode. Please check your logic");
}
}
}
}