Port Opened, No connection

LightBurn Hardware Compatibility
1

Hi,

I just received a laser engraver for Christmas, and I would love to be able to use this software. Lightburn couldn’t auto-detect my device, but I know it is running Grbl 1.1f, so I tried manually connecting. It appears to be doing SOMETHING, but the port just stays open and I can’t actually connect. I’ve pasted the debug log if it helps… Also, I’m running an Arduino Nano 328p if that helps.

11:01:49.517 D: “LightBurn 0.9.09” “Sat Dec 28 2019”
11:02:06.051 D: Clipboard data present:
11:02:06.051 D: (“application/x-qt-image”)
11:02:28.611 D: Clipboard data present:
11:02:28.611 D: (“application/x-qt-image”)
11:02:33.885 D: “LightBurn 0.9.09” “Sat Dec 28 2019”
11:02:53.533 D: Clipboard data present:
11:02:53.533 D: (“application/x-qt-image”)
11:03:10.711 D: Clipboard data present:
11:03:10.711 D: (“application/x-qt-image”)
11:03:14.776 D: “starting” busy: false state: 0
11:03:14.776 D: Enumerating ports:
11:03:14.782 D: Port: “COM1”
11:03:14.782 D: Valid Candidate: true
11:03:14.782 D: PID: 0 VID: 0
11:03:14.782 D: Manufacturer: “(Standard port types)”
11:03:14.782 D: Description: “Communications Port”
11:03:14.782 D: System Loc: “\\.\COM1”
11:03:14.782 D: Serial: “”
11:03:14.784 D:
11:03:14.784 D: Port: “COM4”
11:03:14.784 D: Valid Candidate: true
11:03:14.784 D: PID: 29987 VID: 6790
11:03:14.784 D: Manufacturer: “wch.cn”
11:03:14.784 D: Description: “USB-SERIAL CH340”
11:03:14.784 D: System Loc: “\\.\COM4”
11:03:14.784 D: Serial: “”
11:03:14.784 D:
11:03:14.838 D: Found port: PID 29987 VID 6790
11:03:14.838 D: Manufacturer: “wch.cn”
11:03:14.838 D: Product: “USB-SERIAL CH340”
11:03:14.838 D: Name: “COM4”
11:03:14.841 D: Port open succeeded
11:03:14.879 D: “starting” busy: false state: 0
11:03:14.880 D: Clipboard data present:
11:03:14.880 D: (“application/x-qt-image”)
11:03:15.865 D: “Attempting to connect” busy: false state: 1
11:03:15.865 D: “Connecting…” busy: false state: 1
11:03:15.866 D: O: “47300a”
11:03:17.094 D: I: “0000000000000000000000000000000000000000000000000000000000000000”
11:03:17.106 D: I: “0000000000000000000000000000000000000000000000000000000000000000”
11:03:17.115 D: I: “0000000000000000000000000000000000000000000000000000000000000000”
11:03:17.118 D: I: “00000000”

2

The device seemed to connect, but sent all zeros. That could be an incorrect baud rate setting. Have you ever connected to this with any other software?

3

I’ve been able to attach it to T2Laser, as well as the cheap Chinese program (Engraver Master).

From what I can tell, the Baud rate is 9600…doesn’t seem to be a setting for that rate within Lightburn…unless I’m missing something.

4

I could go that low in LightBurn I just didn’t think anyone ever would - the performance would be abysmal if you ever tried to do anything other than simple vector cuts or engraves. I’ve added 9,600 and 19,200 baud to the next release.

5

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