> For the complete documentation index, see [llms.txt](https://developer.magtek.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.magtek.com/hardware/card-readers/magnetic-stripe-readers/idynamo-5-gen-iii/documentation/developers-manuals/programmers-manual-android/commands.md).

# Commands

Custom software can use the sendCommandToDevice method to send direct commands to the device. This section provides information about commonly used commands.

#### Discovery <a href="#id-7.1_discovery" id="id-7.1_discovery"></a>

To send a command to device, use:

```
public void sendCommandToDevice(String command)
```

Parameters: Use “C10206C20503840900” as command string for audio readers.

Return Value:

The following device information will be retrieved.

* Device SN, internal: Device serial number created by chip manufacturer. Use getDeviceSerial method to retrieve data.
* Device SN, MagTek: Device serial number created by MagTek. Use getDeviceSerialMagTek method to retrieve data.
* Device Firmware Part Number: Device firmware part number. Use getFirmware method to retrieve data.&#x20;
* Device Model Name: Device model name. Use getDeviceName method to retrieve data. Device TLV Version: Device TLV version. Use getTLVVersion method to retrieve data.
* Device Part Number: Device part number. Use getDevicePartNumber method to retrieve data. Capability - MSR: 0 = No MSR, 1 = MSR. Use getCapMSR method to retrieve data.

Capability - TRACKS:

* 0 = Supported tracks: None.
* 1 = Supported tracks: Track1.
* 2 = Supported tracks: Track2.
* 3 = Supported tracks: Track1, Track2.
* 4 = Supported tracks: Track3.
* 5 = Supported tracks: Track1, Track3.
* 6 = Supported tracks: Track2, Track3.
* 7 = Supported tracks: Track1, Track2, Track3.

Use getCapTracks method to retrieve data.

Capability - MagStripe Encryption:&#x20;

* 0 = No Encryption,&#x20;
* 1 = TripDES DUKPT.&#x20;

Use: getCapMagStripeEncryption method to retrieve data.


---

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