Hi Dennis,
Thanks, it does look like the serial connection is opening and GRBL is at least beginning to start up, but the controller may not be fully ready by the time the first status query is sent. I’m wondering if your Nano (or Nano clone?) board resets when the serial port is opened and then takes longer than usual to be ready? Where did you get the firmware you flashed to it from?
I have updated this web diagnostic tool so it will wait longer for a readable startup message from GRBL before it sends the first status request.
Please try this:
- Close MillMage completely.
- Turn the machine off, wait a few seconds, then turn it back on.
- Open this link in Chrome or Edge:
https://nicholas-a11y.github.io/grbl-diagnostic/?preset=startup-status&name=dennis-startup-status&baud=115200&wait=200&banner_timeout=5000&delay=600 - Click Connect and select the machine’s serial port.
- Wait about 5 to 10 seconds for the log to settle.
- Click Copy log and paste the full result here.
Hopefully, at the bottom of the log you will now see a response to the ‘?’ status query, something like; “<Idle|MPos:0.000,0.000,0.000”).
If not, ‘Disconnect’ , and then use this link to start a passive capture test which will reopen the port and just listen without trying to start a dialogue:
- Open this link:
https://nicholas-a11y.github.io/grbl-diagnostic/?preset=observe-only&name=dennis-observe-only&baud=115200&wait=0 - Click Connect.
- Wait for 5 seconds.
- Click Copy log.
- Paste that log here as well.