JEwaldt.NecMultiSync 1.0.0

.NET Framework 4.7.2 This package targets .NET Framework 4.7.2. The package is compatible with this framework or higher. 
dotnet add package JEwaldt.NecMultiSync --version 1.0.0
                    


                    

                
NuGet\Install-Package JEwaldt.NecMultiSync -Version 1.0.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="JEwaldt.NecMultiSync" Version="1.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="JEwaldt.NecMultiSync" Version="1.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="JEwaldt.NecMultiSync" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add JEwaldt.NecMultiSync --version 1.0.0
                    


                    

                
#r "nuget: JEwaldt.NecMultiSync, 1.0.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package JEwaldt.NecMultiSync@1.0.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=JEwaldt.NecMultiSync&version=1.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=JEwaldt.NecMultiSync&version=1.0.0
                    


                            Install as a Cake Tool

JEwaldt.NecMultiSync

A two-way Crestron SIMPL# Pro driver for NEC MultiSync displays, using the NEC external-control protocol over serial-over-IP (a serial-to-Ethernet gateway, or the display's native LAN control port — default 7142).

Ported from the public NEC SIMPL Windows module, so behavior matches the proven module byte-for-byte, wrapped in a clean C# API.

Install

dotnet add package JEwaldt.NecMultiSync

Use

The driver is transport-agnostic of any room framework — construct it with a host, port, and monitor ID, connect, and drive it:

using JEwaldt.NecMultiSync;

var tv = new NecDisplay("192.168.1.50", 7142, monitorId: 1, name: "Conf A TV");
tv.FeedbackChanged += (s, e) =>
{
    // tv.PowerIsOn, tv.Volume, tv.MuteIsOn, tv.SelectedInput, tv.ControlLocked, ...
};
tv.Connect();

tv.PowerOn();
tv.SetInput(NecProtocol.Input.Hdmi1);
tv.SetVolume(35);
tv.Poll();            // refresh power / mute / volume / input feedback

Call tv.Dispose() on teardown.

Control surface

PowerOn / PowerOff / PowerToggle · SetVolume / VolumeUp / VolumeDown · MuteOn / MuteOff (software mute) · SetInput · ChannelUp / ChannelDown · LockControls / UnlockControls · SetAnalogCaption / SetDigitalCaption · SendRemoteKey · SendNumber · SaveSettings · Poll / PollNoVolume.

Feedback (properties + the FeedbackChanged event)

PowerIsOn · MuteIsOn · Volume · SelectedInput · ControlLocked · AnalogCaption · DigitalCaption.

Inputs (NecProtocol.Input)

None, Vga, VgaHv, Dvi, Video1, Video2, SVideo, Component1, Component2, Tv, Hdmi1, Hdmi2, Hdmi3, DisplayPort.

Notes

  • One command is sent at a time and gated on the display's reply (500 ms timeout), so it never floods the display. Replies are matched by opcode, so a late reply still updates the correct feedback.
  • The TCP transport auto-reconnects every 5 seconds if the link drops.
  • FeedbackChanged fires on a Crestron worker thread — marshal to your own context if a handler touches shared state.

License

MIT.

Product Compatible and additional computed target framework versions.
.NET Framework net472 is compatible.  net48 was computed.  net481 was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
1.0.0 114 7/23/2026