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Pinging a Reader with C#


Here's a handy way to determine if a reader is connected to the network or not. It uses the .NET Ping and PingOptions classes, so make sure to add the following namespace to your project.


using System.Net.NetworkInformation;

//Then, you can write a method like this, that returns true if the reader is connected and false if it is not.

private bool ReaderIsAvailable(string address)
    Ping pingSender = new Ping();
    PingOptions options = new PingOptions();
    options.DontFragment = true;
    string data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
    byte[] buffer = Encoding.ASCII.GetBytes(data);
    int timeout = 120;
    PingReply reply = pingSender.Send(address, timeout, buffer, options);
    if (reply.Status == IPStatus.Success)
        return true;
        return false;

Finally, this is how you would call the method.

if (ReaderIsAvailable("SpeedwayR-10-25-32"))
    // Reader is connected to the network.
    // Start reading some tags!
    // Reader is not connected to the network.
    // Handle it here.

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Impinj (NASDAQ: PI) wirelessly connects billions of everyday items such as apparel, medical supplies, and automobile parts to consumer and business applications such as inventory management, patient safety, and asset tracking. The Impinj platform uses RAIN RFID, delivering information about items to the digital world and enabling the Internet of Things.