private static void CheckAndOpenConnection(Esp8266WIFI esp8266Client)
{
if (esp8266Client.IPAddress != "0.0.0.0")
{
esp8266Client.OpenPassthroughConnection(_connection.Target, 10000);
}
}
private static void SendDeviceInfo(Esp8266WIFI esp8266Client)
{
bool pin1State = _pin1.Read() == GpioPinValue.High ? true : false;
string value = "{\"id\":\"E5363BAF-2C1B-4C6C-A92B-41A8DAFFF870\", " +
"\"key\":\"E5363BAF-2C1B-4C6C-A92B-41A8DAFFF870\", " +
"\"analogs\":[]," +
"\"digitals\":" +
"[" +
"{\"state\": " + pin1State.ToString().ToLower() + "," +
"\"number\":" + _pin1.PinNumber.ToString() + ", " +
"\"name\":\"Living Room\"}" +
"], \"Pwms\":[]}";
esp8266Client.Write(value);
}
private static void DisplayEspState(GHIElectronics.TinyCLR.BrainPad.Display display, Esp8266WIFI esp8266Client)
{
display.Clear();
switch (esp8266Client.WifiState)
{
case WifiState.Disconnected:
display.DrawSmallText(0, 0, "NO WIFI");
break;
case WifiState.Connected:
case WifiState.GotIP:
display.DrawSmallText(0, 0, "WIFI CONNECTED");
break;
case WifiState.NoAP:
display.DrawSmallText(0, 0, "NO AP");
break;
case WifiState.Busy:
case WifiState.Unknown:
default:
display.DrawSmallText(0, 0, "ERROR");
break;
}
display.DrawSmallText(0, 10, $"IP: {esp8266Client.IPAddress}");
string ready = esp8266Client.ConnectionState == ConnectionState.Ready ? "REMOTE CONNECTED" : "REMOTE CLOSED";
display.DrawSmallText(0, 20, ready);
display.RefreshScreen();
}
private static void InitializeEsp8266Wifi(GHIElectronics.TinyCLR.BrainPad.Display display, GpioPin CH_PD)
{
_esp8266Client = new Esp8266WIFI(CH_PD, BrainPad.Expansion.UartPort.Usart1);
_esp8266Client.OnWifiStateChanged += () =>
{
DisplayEspState(display, _esp8266Client);
};
_esp8266Client.OnIPAddressChanged += () =>
{
DisplayEspState(display, _esp8266Client);
CheckAndOpenConnection(_esp8266Client);
};
_esp8266Client.OnDataConnectionChanged += () =>
{
DisplayEspState(display, _esp8266Client);
if (_esp8266Client.ConnectionState == ConnectionState.Ready)
{
SendDeviceInfo(_esp8266Client);
}
else if (_esp8266Client.ConnectionState == ConnectionState.Closed)
{
CH_PD.Write(GpioPinValue.Low);
Thread.Sleep(200);
CH_PD.Write(GpioPinValue.High);
Thread.Sleep(20);
_esp8266Client.SetupWifiConnection(_connection.SSID, _connection.Password, WifiMode.Client);
}
};
_esp8266Client.OnDataReceived += () =>
{
string data = _esp8266Client.Data;
if (data.IndexOf("CMD=") >= 0)
{
int idx = data.IndexOf("CMD=");
data = data.Substring(idx + 4);
if (data.ToUpper() == "GETDEVICEINFO")
{
SendDeviceInfo(_esp8266Client);
}
}
else if (data.IndexOf("SETDIGITAL=") >= 0)
{
int idx = data.IndexOf("SETDIGITAL=");
data = data.Substring(idx + 11);
string[] splits = data.Split('|');
foreach (var split in splits)
{
if (string.IsNullOrEmpty(split))
{
continue;
}
var parts = split.Split(':');
SetDigitalPin(int.Parse(parts[0]), parts[1]);
}
}
else if (data.IndexOf("ERROR") >= 0 && data.IndexOf("CLOSED") >= 0)
{
CheckAndOpenConnection(_esp8266Client);
}
};
_esp8266Client.SetupWifiConnection(_connection.SSID, _connection.Password, WifiMode.Client);
}
