public void Update()
{
using (var commandList = new TransmitterChannel(_gpioPin))
{
ConfigureTransmitter(commandList);
for (uint pixel = 0; pixel < Pixels.Length; ++pixel)
{
SerializeColor(Pixels[pixel].G, commandList);
SerializeColor(Pixels[pixel].R, commandList);
SerializeColor(Pixels[pixel].B, commandList);
}
commandList.AddCommand(ResCommand); // RET
commandList.Send(true);
}
}
public float ObterDistancia()
{
RmtCommand[] response = null;
_rxChannel.Start(true);
// Send 10us pulse
_txChannel.Send(false);
// Try 5 times to get valid response
for (int count = 0; count < 5; count++)
{
response = _rxChannel.GetAllItems();
if (response != null)
{
break;
}
// Retry every 60 ms
Thread.Sleep(60);
}
_rxChannel.Stop();
if (response == null)
{
return(-1);
}
// Echo pulse width in micro seconds
int duracao = response[0].Duration0;
var distancia = duracao / 58;
return(distancia);
// Calculate distance in meters
// Distance calculated as (speed of sound) * duration(meters) / 2
//return _speedOfSound * duration / (1000000 * 2);
}