static void Main(string[] args)
{
// open serial port communications with your arduino board
// you may need to change COM3 to some other port number
// check in device manager to see which port is used by arduino
SerialPort serialPort = new SerialPort("COM3", 9600, Parity.None, 8, StopBits.One);
serialPort.Open();
while(true)
{
string message = null;
try
{
// receive a line of text from arduino
message = serialPort.ReadLine();
// remove newline used to separate messages coming from arduino
message = message.Trim();
if (string.IsNullOrWhiteSpace(message) == false)
{
// message should be something like: light|28|power|651|temperature|22
// we split it here in six parts separated by the | character
string[] parts = message.Split('|');
if (parts.Length == 6)
{
// part integer readings for light, power and temperature
int lightValue = int.Parse(parts[1]);
int powerValue = int.Parse(parts[3]);
int tempValue = int.Parse(parts[5]);
// url that we need to call to pass our readings to open energy
string eneryMonitorUrl = "http://emoncms.org/input/post.json?json={light:" + lightValue + ",power:" + powerValue + ",temperature:" + tempValue + "}&apikey=" + kOpenEnergyMonitorApiKey;
// we do an HTTP GET to open energy monitor
WebClient webClient = new WebClient();
string energyMonitorResponse = webClient.DownloadString(new Uri(eneryMonitorUrl));
Console.WriteLine("arduino says: " + message);
Console.WriteLine("we call: " + eneryMonitorUrl);
Console.WriteLine("energy monitor responds: " + energyMonitorResponse);
Console.WriteLine(Environment.NewLine);
}
}
}
catch (Exception exception)
{
Console.WriteLine("An error occoured, message received: '" + message + "', exception: " + exception);
}
}
}
