# MTSCRA Class Methods - 1 - 10 After creating an instance of the MTSCRA class in your custom software project, use the methods described in this section to communicate with SCRA device. #### setConnectionType This method sets the connection type of the device. ``` public void setConnectionType(MTConnectionType connectionType) ``` Parameters:
ParameterDescription

connectionType

MTConnectionType value: MTConnectionType.Unknown, MTConnectionType.Audio, MTConnectionType.BLE, MTConnectionType.BLEEMV, MTConnectionType.Bluetooth, MTConnectionType.USB, MTConnectionType.Serial, MTConnectionType.Net, MTConnectionType.Net_TLS12, MTConnectionType.Net_TLS12_Trust_All, MTConnectionType.BLEEMVT, MTConnectionType.AIDL
The following table shows the connection types supported by the various SCRA devices:
Connection TypeSCRA DeviceNote
AudioaDynamo uDynamo
Bluetooth LEDynaMAXAndroid 4.4.2 and above
Bluetooth LE EMVeDynamoAndroid 4.4.2 and above
Bluetooth LE EMVTtDynamoAndroid 4.4.2 and above
BluetoothBulleTCard swipe only

USB

BulletT DynaMag DynaMAX eDynamo tDynamo DynaWave iDynamo 6

iDynamo 5 (Gen III)

Host must support USB On- The-Go.

SerialDynaGlassAndroid 7.1.2
SerialDynaWaveAndroid 4.4.2 and above
AIDLDynaGlassAndroid 7.1.2
Return Value: None #### setConnectionRetry This function when set to True instructs the SDK to automatically retry to connect to the Bluetooth LE reader upon pairing. If set to False, the Bluetooth LE reader will be disconnected after pairing. This function is set to False by default in the SDK, but MagTek highly recommends to set this flag to True in your application in order to make sure that you'll have a successful secure connection between Android OS and Bluetooth LE reader after the paring. ``` public void setConnectionRetry(boolean connectionRetry) ``` Parameters:
ParameterDescription

connectionRetry

Connection retry value:

True = SDK will retry the conection after pairing.

False = SDK will not retry the connection after pairing.

Return Value: None #### setAddress This method sets the address of the device. ``` public void setAddress(String deviceAddress) ``` Parameters:
ParameterDescription
deviceAddressString value of the address.
Return Value: None #### setDeviceConfiguration This method sets the configuration parameters for the device. ``` public void setDeviceConfiguration(String configuration) ``` Parameters:
ParameterDescription
configurationString value of the configuration parameters to be used for the device.
Audio Reader Device Configuration
ParameterDefault ValueConfigurable Values
PAN_MOD10_CHECKDIGITTRUEFALSE, TRUE
INPUT_AUDIO_SOUREVRECOGMIC, VRECOG
INPUT_SAMPLE_RATE_IN_HZ4410032000, 44100, 48000
Return Value: None #### openDevice This method opens connection to the device. ``` public void openDevice() ``` Parameters: None Return Value: None #### closeDevice This method closes the connection to the device. ``` public void closeDevice() ``` Parameters: None Return Value: None #### isDeviceConnected This method returns whether the device is connected or not. ``` public boolean isDeviceConnected() ``` Parameters: None Return Value: Return true if the device is connected. Otherwise, return false. #### isDeviceEMV This method returns whether the device supports EMV or not. ``` public boolean isDeviceEMV() ``` Parameters: None Return Value: Return true if EMV is supported by the device. Otherwise, return false. #### getMaskedTracks Get stored masked tracks data. If decodable track data exists for a given track, it is located in the Masked Track Data field that corresponds to the track number. The length of each Masked Track Data field is fixed at 112 bytes, but the length of valid data in each field is determined by the Masked Track Data Length field that corresponds to the track number. Masked Track Data located in positions greater than indicated in the Masked Track Data Length field are undefined and should be ignored. The Masked Track Data is decoded and converted to ASCII and then it is masked. The Masked Track Data includes all data starting with the start sentinel and ending with the end sentinel. Much of the data is masked; a specified mask character is sent instead of the actual character read from the track. Which characters are masked depends on the format of the card. Only ISO/ABA (Financial Cards with Format Code B) and AAMVA cards are selectively masked; all other card types are either entirely masked or sent totally in the clear. There is a separate masking property for ISO/ABA cards and AAMVA cards. See *D99875475* for the ISO Track Masking property and the AAMVA Track Masking property for more information. See *D99875475* for a description on how ISO/ABA and AAMVA cards are identified. Each of these properties allows the application to specify masking details for the Primary Account Number and Driver’s License / ID Number (DL/ID#), the masking character to be used, and whether a correction should be applied to make the Mod 10 9 (Luhn algorithm) digit at the end of the number be correct. ``` public String getMaskedTracks() ``` Parameters: None Return Value: Return stored masked tracks data string. #### getTrack1 Get stored track1 data. This field contains the encrypted track data for track 1. public String getTrack1() Parameters: None Return Value: Return stored track1 data string. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://developer.magtek.com/hardware/card-readers/magnetic-stripe-readers/idynamo-5-gen-iii/documentation/developers-manuals/programmers-manual-android/mtscra-class-methods/mtscra-class-methods-1-10.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.