This project includes a Netduino Plus 2, a photo sensor and a RN-XV WiFly module (with wireless shield).
What I am aiming for is that when the application starts a connection is made to the wifi network; then when the photo sensor is triggered a counter variable is sent to a webpage, as a querystring variable, to add it to a database.
Before I create the HTTP request I thought I would make sure I can access the WiFly "instance" from within the OnInterrupt "function/call" by simply getting the Local IP address again and writing it to the Debug window (apologies again if I'm getting the terminology wrong).
There is no problem populating the string "strLocalIP_1" but as soon as I try populate "strLocalIP_2" the application hangs.
What am I missing?
using System;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using Microsoft.SPOT;
using Microsoft.SPOT.Hardware;
using SecretLabs.NETMF.Hardware;
using SecretLabs.NETMF.Hardware.Netduino;
using Toolbox.NETMF;
using Toolbox.NETMF.NET;
using Toolbox.NETMF.Hardware;
namespace sandbox
{
public class Program
{
// declare counter variable, photoSensor and wifly
static uint counter = 0;
static InterruptPort mySensor;
static WiFlyGSX WifiModule;
public static void Main()
{
// Create sensor instance
mySensor = new InterruptPort(Pins.GPIO_PIN_D7, false, Port.ResistorMode.Disabled, Port.InterruptMode.InterruptEdgeBoth);
mySensor.OnInterrupt += new NativeEventHandler(mySensor_OnInterrupt);
// Create WiFly instance
WifiModule = new WiFlyGSX();
// Allow some time for WiFly to power up and find network
Thread.Sleep(5000);
// Join Network
WifiModule.EnableDHCP();
WifiModule.JoinNetwork("SSID", 0, WiFlyGSX.AuthMode.MixedWPA1_WPA2, "Password");
// Wait for authentication and joining
Thread.Sleep(5000);
Debug.Print("WiFi connected");
// Get the Local IP to confirm connection to the wifi network
string strLocalIP_1;
strLocalIP_1 = WifiModule.LocalIP;
Debug.Print(strLocalIP_1);
// Indefinitely wait for any sensor interrupts...
Thread.Sleep(Timeout.Infinite);
}
public static void mySensor_OnInterrupt(uint port, uint state, DateTime time)
{
// get the "interrupt" state to stop counter counting twice
if (state == 0)
{
// Write the count to the debug window
Debug.Print("counter: " + counter);
// Get the Local IP to confirm connection to the wifi network
string strLocalIP_2;
strLocalIP_2 = WifiModule.LocalIP;
Debug.Print(strLocalIP_2);
// increase counter by 1
counter++;
}
}
}
}
I'm sure it's a real noob oversight on my part but would appreciate any help.
Thanks,
Donovan
