AC.Library.Core

AC.Library.Core is a streamlined library designed for managing Gree Air Conditioner devices. This library has been specifically tested with the Gree G-Tech model. For more information on this model, please visit Gree Global.

We extend our gratitude to tomikaa87 for his exceptional contributions, from which this project draws inspiration and methodology. To explore his innovative work, which served as a foundational resource for our development, visit gree-remote.

Usage Instructions

Local network discovery

This functionality initiates a local network discovery by dispatching a specialized UDP packet to the broadcast address. Devices within the network respond with pertinent information such as brand, MAC address, and device name, among others.

    using var udpWrapper = new UdpClientWrapper();    
    var deviceScanner = new ScanOperation(udpWrapper);
    // The IP address must be the broadcast address of  local network
    var devices = await deviceScanner.Scan("192.168.1.255");

Binding device

To communicate with an air conditioner (AC), the device must first be bound to the computer. Successful binding yields a private key essential for subsequent communications. It is advisable to store this key securely.

    // From the scanning results let's take the first one
    var device = devices.FirstOrDefault();

    using var udpWrapper = new UdpClientWrapper();
    var bindOperation = new BindOperation(udpWrapper);
    var privateKey = await bindOperation.Bind(device.ClientId, device.IpAddress);
    // We can now add the private key to the device object
    device.PrivateKey = privateKey;    

Set a parameter

To modify a device parameter, follow these steps:

Instantiate a SetParameterOperation. When creating an instance of UdpClientWrapper, it is crucial to employ the using statement as shown below. This approach ensures that the udpWrapper object is properly disposed of once it is no longer in use, thereby managing resources efficiently and preventing potential memory leaks.

    // Let's use the previously bound device
    using var udpWrapper = new UdpClientWrapper(); 
    var setParameterOperation = new SetParameterOperation(
        udpWrapper,
        device.ClientId,
        device.PrivateKey
    );

Execute the SetParameter method with the desired parameter and value:

    // Turn on the device
    await setParameterOperation.SetParameter(
        PowerParam.Power,
        new PowerParameterValue(PowerValues.On),
        acDevice.IpAddress
    );

    // Let's set the temperature to 20°C
    var result = await setParameterOperation.SetParameter(
        TemperatureParam.Temperature,
        new TempParameterValue(TemperatureValues._20),
        device.IpAddress
    );

Query status

You can also retrieve the current settings of one or more parameters:

Begin by creating a DeviceStatusOperation instance with the necessary parameters:

    using var udpWrapper = new UdpClientWrapper(); 
    var statusOperation = new DeviceStatusOperation(
        udpWrapper,
        device.ClientId,
        device.PrivateKey
    );

Formulate a list of parameters and invoke the GetDeviceStatus method:

    var parameterList = new List<IParameter>()
    {
        PowerParam.Power,
        TemperatureParam.Temperature
    };

   var status = await statusOperation.GetDeviceStatus(parameterList, device.IpAddress);

This method returns a Dictionary<string, int>, where each key-value pair represents a parameter and its corresponding value. The string key denotes the name of the queried parameter, and the int value signifies the parameter's actual value. This structure allows for efficient access to the status of multiple device parameters in a type-safe manner.

Examples

For practical implementation examples and to better understand how to utilize the features of this library, please refer to the example code provided in the repository at .\AC.Library.Core\Examples. This directory contains sample application and usage scenarios that demonstrate the library's capabilities in real-world contexts.