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  1. Thanks andylb🙂... This worked perfectly, I appreciate all the headaches you saved me. Only want to add 2 more items to your instructions: 1. Before starting your list, I recommend typing [sudo su]. Saves you from a security error that pops up somewheres around the "Install Linx" step. 2. I am running Linx on [Raspberry Pi 4 Model B Rev 1.1] with the following OS [2020-02-13-raspbian-buster-full]. The Raspberry Pi SoC (System on Chip) is a Broadcom BCM2835. This requires modification of a certain Linx VI to make Linx work with the Raspberry Pi 4b; otherwise you will get a [Unknown Device Error] when starting Linx. See the following web page for instructions: a) Open vi in Labview 2014: C:\Program Files (x86)\National Instruments\LabVIEW 2014\vi.lib\MakerHub\LINX\Private\Utilties\Get Device b) Open the Block Diagram c) Expand String Constant Array in front of [For Loop] by one row. Enter the String BCM2835 into the new row cell. d) Add new Case to the Case Structure. Insert BCM2835 for the Case. Ensure the string constant "Raspberry Pi2 B" is passed out for this case. (Note: I think I tried passing out "Raspberry Pi4 B" but it caused an Error]. e) Save the vi and exit it. 3. Start LINX: a) Start Labview 2014. b) At the [Create Project/Open Existing] window select Tools -> MakerHub -> LINX -> Select: Linx Target Configuration c) Enter the Hostname - Username - Password and Click on Connect Target d) After the other buttons activate click on Install Software. When I did this the Installed Version and Available Version both said 14.1-11. When I first clicked on Launch Example after following the above instructions I got an error. So I tried clicking on Re-Install and Version 14.1-11 was re-installed successfully. After that I was able to Click on Launch Example and the Example loaded successfully. Disclaimer: Since I don't have any hardware I cannot verify that the LED turned on and off. All I can state is that the software did not show any errors when I clicked on the LED button or Stop button.