private async void Timer_Tick(object sender, object e)
{
timer.Stop();
try
{
dDhtReading = await dht22.GetReadingAsync().AsTask().ConfigureAwait(true);
if (dDhtReading.IsValid)
{
var temperature = Convert.ToSingle(dDhtReading.Temperature);
var humidity = Convert.ToSingle(dDhtReading.Humidity);
lblTemperature.Text = string.Format("{0:0.0} °C", temperature);
lblHumidity.Text = string.Format("{0:0.0} %", humidity);
//_SuccessCount++;
}
else
{
lblLog.Text = "reading fail";
//_FailCount++;
}
}
catch (Exception ex)
{
lblLog.Text = ex.ToString();
//_FailCount++;
}
finally
{
timer.Start();
}
}
public async Task <TemperatureReadings> ReadAsync()
{
var reading = await _sensor.GetReadingAsync().AsTask();
var readings = new TemperatureReadings
{
//Temperature = reading.Temperature,
//Humidity = reading.Humidity
};
return(readings);
}
internal async Task <(bool IsValid, double Temperature)> ReadAsync()
{
#if USE_PI
var temperatureReading = await _sensor.GetReadingAsync();
var isValid = temperatureReading.IsValid;
var temperatureNow = temperatureReading.Temperature;
return(isValid, temperatureNow);
#else
var temperatureNow = new Random().NextDouble() * (30 - 18) + 18;
return(await Task.FromResult((true, temperatureNow)));
#endif
}
private async Task GetSensorData()
{
tiSensor.Stop();
try
{
reading = await objDht.GetReadingAsync().AsTask();
if (reading.IsValid)
{
strLastSuccessTime = DateTime.UtcNow.ToString();
string strOperationText = "{0:0.0} °C, {1:0.0} %";
// 取得溫濕度的資料
var temperature = Convert.ToSingle(reading.Temperature);
var humidity = Convert.ToSingle(reading.Humidity);
strOperationText = string.Format(strOperationText, temperature, humidity);
base.SetOperation(strOperationText, DateTime.UtcNow);
// 送至IoT Hub
await this.IoTHub.Send(reading.Temperature, reading.Humidity);
}
else
{
base.SetError("偵測裝置無法讀取");
// 讀不到資訊，等待一秒後再讀一次
await Task.Delay(TimeSpan.FromSeconds(1));
await this.GetSensorData();
}
}
catch (Exception ex)
{
base.SetError(ex.Message);
}
finally
{
tiSensor.Start();
}
}
private async void MainPollDHT(GpioPin gpioPin, string Sensor)
{
Dht22 dht22 = new Dht22(gpioPin, GpioPinDriveMode.Input);
DhtReading reading = await dht22.GetReadingAsync().AsTask();
Debug.WriteLine(string.Format("{0} DHT Valid {1}", Sensor, reading.IsValid));
if (reading.IsValid)
{
Debug.WriteLine(string.Format("{0} DHT Reading:", Sensor));
Debug.WriteLine(reading.Temperature);
Debug.WriteLine(reading.Humidity);
if (Sensor == "Intake")
{
intakeDHTData = (new DHTData()
{
Temp = reading.Temperature,
Hum = reading.Humidity
});
}
else if (Sensor == "Outtake")
{
outtakeDHTData = (new DHTData()
{
Temp = reading.Temperature,
Hum = reading.Humidity
});
}
else if (Sensor == "Main")
{
mainDHTData = (new DHTData()
{
Temp = reading.Temperature,
Hum = reading.Humidity
});
}
System.Threading.Thread.Sleep(1000);
string cmdString = "INSERT INTO [dbo].[sensorReadings] ([timestamp],[sensor],[temp], [hum], [retryCount]) ";
cmdString += "VALUES('" + DateTime.Now + "','" + Sensor + "', '" + reading.Temperature + "', '" + reading.Humidity + "', '" + reading.RetryCount + "');";
cmd = new SqlCommand(cmdString, myConnection);
try
{
cmd.ExecuteNonQuery();
}
catch (SqlException e)
{
Debug.WriteLine(string.Format("Failed SQL- {0}", e.Message.ToString()));
}
catch (NullReferenceException e)
{
Debug.WriteLine(string.Format("Failed Bullshit- {0}", e.Message.ToString()));
}
catch (InvalidOperationException e)
{
Debug.WriteLine(string.Format("Failed Bullshit- {0}", e.Message.ToString()));
}
}
else
{
//Error something here
}
}
