I'm using the NuGet package Plugin.BluetoothLE v6.3.0.19 and I can scan for nearby devices but mostly the names are blank. A few devices show their names but most do not. I also cannot see the mac address of the device I'm looking for.
The scenario is that I know the device name but need to look up the mac for connecting.
As I check the devices I need to check the device.name to see if it matches the device I'm looking for. If found it will attempt to pair and connect.
I'm thinking this LE (Low Energy) version does not get the names from every device unless it broadcasts it. So maybe I need to request more info? If so I don't know how to do that with this plugin.
var adapter = CrossBleAdapter.Current;
adapter.ScanExtra(new ScanConfig { ScanType = BleScanType.Balanced });
var scanner = CrossBleAdapter.Current.Scan().Subscribe(scanResult =>
{
var x = scanResult.Device;
System.Diagnostics.Debug.Print($"{x.Name} - {x.Status} _ {x.ToString()}");
});
I am not very familiar with the BluetoothLE, but I found a course about the problem. I hope this can help you.
In addition, you can put the issue on this git. People who know the problem may help you.
Related
I need to write driver (DXE), that can transmit "couple of bytes" from virtual machine (QEMU) to the host system (OS - Ubuntu). I've read the UEFI_Spec and Guide for developers, but I still don't understand, how to write the code and what protocol should I use (tried to use TCPv4 but can't even LocateHandleBuffer).
EFI_STATUS Status = gBS->LocateHandleBuffer(ByProtocol, &gEfiTcp4ProtocolGuid, NULL, &HandleCount, &HandleBuffer);
I get:
EFI_UNSUPPORTED
If somebody can explain me or can show examples of the code, I'll be very grateful. Thanks.
For most network related protocols you first have to use the corresponding "Service Binding Protocol" to get a handle which contains the protocol you are looking for.
Use this steps to access the Tcp4Protocol:
gBS->LocateHandleBuffer(ByProtovol,gEfiTcp4ServiceBindingProtocolGuid, NULL, &HandleCount, &HandleBuffer);
// Loop over the HandleBuffer Array and pick the one you need
gBS->HandleProtocol(HandleBuffer[YourIndex], &gEfiTcp4ServiceBindingProtocolGuid, &Tcp4SBProtocol);
Tcp4SBProtocol->CreateChild(Tcp4SBProtocol, &Tcp4Handle);
gBS->HandleProtocol(Tcp4Handle, &gEfiTcp4ProtocolGuid, &Tcp4Protocol);
To check if a NIC is available you can use:
// This should return EFI_SUCCESS
gBS->LocateProtocol(&gEfiSimpleNetworkProtocolGuid, NULL, &SimpleNetworkProtocol);
There is a complete code sample for the HttpProtocol inside the Uefi specification (starting at page 1548), the Tcp4Protocol is not very different.
I am trying to write a simple script using Zaber Console.
I basically have to move my robot arm to a certain position (i.e. 43.9mm) hold the position for 10 minutes and go back to the home position.
I found all the command for moving (fast/slow and with a certain acceleration) but I can't undestand how to tell the machine to stay at 43.9mm poistion for 10 minutes.
Any suggestions ?
I am coding in "this language":
if(PortFacade.Port.IsAsciiMode)
{
Conversation.Request("move abs", 881890);
Conversation.PollUntilIdle();
}
else
{
Conversation.Request(Command.MoveAbsolute, 881890);
}
Thanks a lot.
Riccardo
For your reference, if you are coding through the script editor in Zaber Console, we offer a scripting page which covers C#, Javascript, VP, as well as Python. You can find the scripting page here: http://www.zaber.com/wiki/Software/Zaber_Console/Scripting
The language in your script is using C#, and a quick program to execute what you'd like to do can be written like this:
#template(simple)
var device1 = PortFacade.GetConversation(1); // This is assuming your device
// is device 1 in the chain.
// The device list in Zaber Console will let you know the device number.
// Alternatively, you can use the renumber command to change the device number.
device1.Request("move abs 100000"); //the data value for 43.9 mm will vary
// from device to device. The formula would be 43.9[mm]/ Microstep size[mm] = Data value
// The microstep size can be found on the product page at www.Zaber.com, or
// email Contact#Zaber.com
Sleep(5000); //Sleep is in milliseconds
device1.Request("move abs 0");
If you have any questions, please don't hesitate to email Contact#Zaber.com.
Regards,
Albert
I am in a need to send data thru serial port in vxworks. I am using the following code. But
it is not working.can anyone point out what went wrong?
int f;
if(f=open("/tyCo/1",O_RDWR,0)<0)
{
printf("Error opening serial port.");
return 1;
}
write(f,"hello",5);
after running this code, no data is comming thru serial port but instead it comes thru
terminal(Tornado shell). The system has two serial devices /tyCo/1 and /tyCo/0. I tried them both, but the problem persists.
Thanks in adavnce
Likhin.
Have you set the baud rate?
if (iocl(m_fd, FIOBAUDRATE, rate )) == ERROR )
{
//throw error
}
It is possible that you are using the wrong name for the device, and that Tornado Shell is set to your default device. From vxdev.com:
If a matching device name cannot be found, then the I/O function is directed
at a default device. You can set this default device to be any device in the
system, including no device at all, in which case failure to match a device
name returns an error. You can obtain the current default path by using
ioDefPathGet( ). You can set the default path by using ioDefPathSet( ).
The 3rd parameter of "open" command is, if I am not wrong, the mode. I do not really understand what it is needed for in vxworks, except for code comparability with UNIX. In short -try to give some value like 0644 or 0666. I think this will help.
The adobe documentation says that when listening for a keypress event from a phone you should listen for Key.Down, however when I trace the Key.getCode() of keypresses I see a number not the string "Key.Down". I am tesing this locally in device central and do not have a phone to test this with at present. Here is my code -
keyListener = new Object();
keyListener.onKeyDown = function() {
switch (Key.getCode()) {
trace(Key.getCode()) // outputs 40
case (Key.DOWN) : // according to the docs
pressDown();
break;
}
}
My question is - is this simply because Im testing in device central and when I run it on the phone I will need to be listening for Key.Down? or is the documentation wrong? Also is the numeric code (40) consistent across all devices? What gives adobe?
thanks all
Key.Down is equal to 40 so it will recognize it as the same. So you can use whichever one you prefer, however, I would recommend using Key.Down because it will be easily recognizeable for those who dont have Key Codes memorized (most of us).
These are the Key Code Values for Javascript. However, I think they are pretty much universal
I've created a fileUpload.mxml component in flex 3 which basically uploads m4a's to a designated server. The general code is below:
private var uploadURL:URLRequest;
private var file:FileReference;
file=new FileReference();
file.browse(getTypes());
var params:URLVariables = new URLVariables();
params.fileID = model.selectedFileUpload.fileUploadId.toString();
uploadURL.data = params;
uploadURL.url= model.mainDir + "/php/upload.php";
file.upload(uploadURL);
Everything works fine on a windows pc, but not on a mac pc. It stops at file.upload(uploadURL) (and thus doesn't trigger Event.COMPLETE).
Has anyone experienced this problem on the mac os x? And if so, how did you overcome it?
Any advice would be appreciate.
Regards,
Angus
The COMPLETE event is not triggered in Mac due to a bug UNLESS the server send ANY output back to the server.
A simple echo of any string would do.
this issue is detailed in the SWFUpload boards along this very solution (there may be other causes, also discussed in that thread, but the not output is the most common one): http://swfupload.org/forum/generaldiscussion/872