# RFID

## Overview

This section explains how to use the `AsReaderRFIDDevice` to operate RFID reader functionality.  
You can connect to the device, start/stop reading, and receive reading results.

## Supported Devices

`ASX-300R`, `ASX-301R`, `ASR-030D`, `ASR-031D`,  
`ASR-0230D`, `ASR-0231D`, `ASR-M30S`

> **Note**  
> Continuous RFID tag scanning may cause the device to become warm over time.  
> In high-temperature environments or with prolonged scanning, consider adjusting the scan interval in the application as needed.

## Classes and Protocols Used

```{list-table} Classes and Protocols
:header-rows: 1
:widths: 25 15 60

* - Name
  - Type
  - Description
* - [`AsReaderRFIDDevice`](./7_AsReaderRFIDDevice.md)
  - Class
  - Main class for controlling the RFID reader
* - [`AsReaderRFIDDeviceDelegate`](./7_AsReaderRFIDDevice.md)
  - Protocol
  - Delegate used for receiving reading results and other events
```

## Initialization and Connection

```objectivec
AsReaderRFIDDevice* device = [[AsReaderRFIDDevice alloc] init];
device.delegateRFID = self;
```

- `delegateRFID`: Set this to receive RFID reading events.

## Starting and Stopping Reading

```objectivec
[device startScan:5 readUntilInSec:10 repeatCycle:3];   // Start reading
[device stopScan];                                       // Stop reading
```

## Receiving Reading Results

```objectivec
- (void)receivedBarcodeData:(NSData *)data {
    // data: The acquired pcEPC data
}
```

※ Implement this method from the `AsReaderRFIDDeviceDelegate` protocol.

---

```{toctree}
:maxdepth: 1
:hidden:

7_AsReaderRFIDDevice.md
Delegate <5_AsReaderRFIDDeviceDelegate.md>
```