public static void Jalla()
{
// First create IO Provider
// In this demo we're using the TXD2 and RXD2 on the Embedded Master
// Data: TXD2 => E29
// Clock: RXD2 => E28
//SHT11_GPIO_IOProvider SHT11_IO = new SHT11_GPIO_IOProvider(Cpu.Pin.GPIO_Pin0, Cpu.Pin.GPIO_Pin1);//new SHT11_GPIO_IOProvider((Cpu.Pin)29, (Cpu.Pin)28);
//SHT11_GPIO_IOProvider SHT11_IO = new SHT11_GPIO_IOProvider((Cpu.Pin)29, (Cpu.Pin)28);
SHT11_GPIO_IOProvider SHT11_IO = new SHT11_GPIO_IOProvider(Pins.GPIO_PIN_D0, Pins.GPIO_PIN_D1);
// Create SHT11 Interface with the IO provider we've just created
SensirionSHT11 SHT11 = new SensirionSHT11(SHT11_IO);
// Soft-Reset the SHT11
if (SHT11.SoftReset())
{
// Softreset returns True on error
throw new Exception("Error while resetting SHT11");
}
// Set Temperature and Humidity to less acurate 12/8 bit
if (SHT11.WriteStatusRegister(SensirionSHT11.SHT11Settings.LessAcurate))
{
// WriteRegister returns True on error
throw new Exception("Error while writing status register SHT11");
}
// Do readout
Debug.Print("RAW Temperature 12-Bit: " + SHT11.ReadTemperatureRaw());
Debug.Print("RAW Humidity 8-Bit: " + SHT11.ReadHumidityRaw());
// Set Temperature and Humidity to more acurate 14/12 bit
if (SHT11.WriteStatusRegister((SensirionSHT11.SHT11Settings.NullFlag)))
{
// WriteRegister returns True on error
throw new Exception("Error while writing status register SHT11");
}
// Do readout
Debug.Print("RAW Temperature 14-Bit: " + SHT11.ReadTemperatureRaw());
Debug.Print("RAW Humidity 12-Bit: " + SHT11.ReadHumidityRaw());
// Now enter a loop, constantly outputing Temperature and Humidity
while (true)
{
// Read Temperature with SHT11 VDD = +/- 3.5V and in Celcius
double Temperature = SHT11.ReadTemperature(SensirionSHT11.SHT11VDD_Voltages.VDD_3_5V, SensirionSHT11.SHT11TemperatureUnits.Celcius);
Debug.Print("Temperature Celcius: " + Temperature.ToString());
// Read Humidity with SHT11 VDD = +/- 3.5V
double Humidity = SHT11.ReadRelativeHumidity(SensirionSHT11.SHT11VDD_Voltages.VDD_3_5V);
Debug.Print("Temperature in percent: " + Humidity.ToString());
// Wait a little
Thread.Sleep(100);
}
}
public static void Main()
{
#region Setting up SHT1x sensor.
// Create IO provider (data pin - D13, clock pin - D12) and sensor instance.
SensirionSHT11 sht1x = new SensirionSHT11(new SHT11_GPIO_IOProvider(Pins.GPIO_PIN_D13, Pins.GPIO_PIN_D12));
// Sensor instance software reset.
if (sht1x.SoftReset())
{
errLED.Write(true);
throw new Exception("Error reseting SHT1x sensor.");
}
#endregion
#region SHT1x sensor diagnostics.
// Try setting sensor to GREATER sensitivity.
if (sht1x.WriteStatusRegister((SensirionSHT11.SHT11Settings.NullFlag)))
{
errLED.Write(true);
throw new Exception("Error setting sensor to greater sensitivity (NullFlag).");
}
Debug.Print("Temperature (RAW) 14-bit: " + sht1x.ReadTemperatureRaw());
Debug.Print("Humidity (RAW) 12-bit: " + sht1x.ReadHumidityRaw());
// Try setting sensor to (battery saving!) LESSER sensitivity.
if (sht1x.WriteStatusRegister(SensirionSHT11.SHT11Settings.LessAcurate))
{
errLED.Write(true);
throw new Exception("Error setting sensor to lesser sensitivity.");
}
Debug.Print("Temperature (RAW) 12-bit: " + sht1x.ReadTemperatureRaw());
Debug.Print("Humidity (RAW) 8-bit: " + sht1x.ReadHumidityRaw());
#endregion
while (true)
{
// Reset error LED.
errLED.Write(false);
#region Creating connection to the Internet of Things server (Cosm/Pachube).
if (socket == null)
{
try
{
Debug.Print("Connecting to the Internet of Things server...");
// Get IP data by domain name.
IPHostEntry hostEntry = Dns.GetHostEntry(host);
IPAddress hostAddress = hostEntry.AddressList[0];
IPEndPoint remoteEndPoint = new IPEndPoint(hostAddress, 80);
// Connect!
socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
socket.Connect(remoteEndPoint);
socket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, true);
socket.SendTimeout = samplingPeriod / 3;
Debug.Print("Connected!");
}
catch (Exception ex)
{
errLED.Write(true);
if (socket != null)
{
socket.Close();
}
socket = null;
Debug.Print("Error when establishing connection: " + ex.Message);
}
}
#endregion
#region Sending sensor reading to the Internet of Things server (Pachube/Cosm).
if (socket != null)
{
try
{
//Reading sensors and displaying measured data for debugging purposes.
temperature = sht1x.ReadTemperature(SensirionSHT11.SHT11VDD_Voltages.VDD_3_5V, SensirionSHT11.SHT11TemperatureUnits.Celcius);
humidity = sht1x.ReadRelativeHumidity(SensirionSHT11.SHT11VDD_Voltages.VDD_3_5V);
Debug.Print("Temperature [C]: " + temperature);
Debug.Print("Humidity [%]: " + humidity);
Debug.Print("Sending sensor readings to the Internet of Things server...");
byte[] contentBuffer = Encoding.UTF8.GetBytes("Temperatura," + temperature.ToString("f") + CRLF + "Vlaznost," + humidity.ToString("f"));
string requestLine = "PUT /v2/feeds/" + feedID + ".csv HTTP/1.1" + CRLF;
byte[] requestLineBuffer = Encoding.UTF8.GetBytes(requestLine);
string headers =
"Host: " + host + CRLF +
"X-PachubeApiKey: " + apiKey + CRLF +
"Content-Type: text/csv" + CRLF +
"Content-Length: " + contentBuffer.Length + CRLF +
CRLF;
byte[] headersBuffer = Encoding.UTF8.GetBytes(headers);
socket.Send(requestLineBuffer);
socket.Send(headersBuffer);
socket.Send(contentBuffer);
Debug.Print("Sensor readings sent!");
}
catch (SocketException ex)
{
errLED.Write(true);
socket.Close();
socket = null;
Debug.Print("Socket error: " + ex.Message);
}
catch (Exception ex)
{
errLED.Write(true);
Debug.Print("Error: " + ex.Message);
}
}
#endregion
#region Turning on signal LED if conditions are met.
try
{
if (temperature >= 27 || humidity >= 70)
{
sigLED.Write(true);
}
else
{
sigLED.Write(false);
}
}
catch (Exception ex)
{
errLED.Write(true);
throw new Exception("Error setting signal LED: " + ex.Message);
}
#endregion
#region Waiting for next sampling period.
int sleep = samplingPeriod - (int)((DateTime.Now.Ticks / TimeSpan.TicksPerMillisecond) % samplingPeriod);
Debug.Print("Sleeping for " + (sleep / 1000).ToString() + " seconds.\r\n");
Thread.Sleep(sleep);
#endregion
}
}
private static void SetupHumidityAndTemperatureSensor()
{
//Todo - handle errors and try to redo?
var ioProvider = new SHT11_GPIO_IOProvider(Pins.GPIO_PIN_D0, Pins.GPIO_PIN_D1);
_tempAndHumiditySensor = new SensirionSHT11(ioProvider);
_tempAndHumiditySensor.SoftReset();
_tempAndHumiditySensor.SetSensorToAccurate();
}
