Duet 3 RRF3 First wireup :)
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2 questions. Do I need an SD card in the Duet 3 with the PI connected ?
And should the Red Diag light be illuminated ? -
1). You'll want to remove the SD card when running in SBC mode (with Pi connected)
Since the SD card normally holds your printer config files, they will be placed in a directory on the Pi instead.
2). When running in SBC mode, the Red diag LED will blink every second.
Here's a good resource if you haven't already seen it:
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Do I need an SD card in the Duet 3 with the PI connected ?
No, should not have a SD card or ethernet connected to Duet 3 when using with raspberry pi.
And should the Red Diag light be illuminated ?
Diag should blink if firmware is running normally afaik
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@jpomo10 Thank you. Blinking every second is about right Now to get the IR sensor working so I can home things