Class EAAccessoryDevice

Creates an object to read from an iOS accessory like a Bluetooth device.

Inheritance
object
NmeaDevice
EAAccessoryDevice
Implements
Inherited Members
Namespace: NmeaParser
Assembly: NmeaParser.dll
Syntax
public class EAAccessoryDevice : NmeaDevice, IDisposable
Remarks

It's worth nothing that iOS is very limited to what devices it can connect to, and generally needs to be MFI certified devices.

To connect to a device in an iOS app, the device must be supported by iOS and enabled in Info.plist. As an example you can declare a Bad Elf GPS receiver like this in the plist: 

<key>UISupportedExternalAccessoryProtocols</key>
<array>
  <string>com.bad-elf.gps</string>
</array>

If using a bad-elf GPS, make sure you send the configuration to enable sending NMEA data. Example: 

var device = new EAAccessoryDevice(accessory, "com.bad-elf.gps");
await device.OpenAsync();
// BadElf start packet.
// See https://github.com/BadElf/gps-sdk/blob/master/README.md#extended-nmea-sentences-with-gsa-and-gsv-satellite-data-and-dop-values
byte[] startPacket = new byte[] { 0x24, 0xbe, 0x00, 0x11, 0x16, 0x01, 0x02, 0xf4, 0x31, 0x0a, 0x32, 0x04, 0x33, 0x02, 0x5a, 0x0d, 0x0a };
await device.WriteAsync(startPacket, 0, startPacket.Length);

Constructors

Name Description
EAAccessoryDevice(EAAccessory, string)

Initializes a new instance of the EAAccessoryDevice class.

Methods

Name Description
CloseStreamAsync(Stream)

Closes the stream the NmeaDevice is working on top off.
GetDevices()

Gets a list of supported known EAAccessories that support NMEA
OpenStreamAsync()

Creates and opens the stream the NmeaDevice is working on top off.

Applies

TargetVersions
.NET iOSmain, v3.0
Xamarin.iOSv2.2