Blade Detect Pin on 3.9 board?

Very quick question, and apologies if it sounds obvious, but am I right in saying that the blade detect pin can still be wired to Button 3 on a 3.9 board? And I’m guessing it can also be wired to any of the Free pads as well?

Thanks in advance.

All pins that are hooked up directly to the CPU can be used for blade detect, so data pins, free pins, button pins and RX/TX, except Data1 because it’s already bridged to a resistor.
See the GPIO column here:


Ahh, thanks Brian. Yeh, I’m not up on this kind of tech so didn’t know that’s what GPIO meant.
Good to know. :+1: Thanks again. :pray: :slight_smile:

GPIO means “General Purpose Input/Output,” most pins on the Proffieboard MCU can be used for anything the program (in this case ProffieOS) requires, hence the term “General.” For the purposes of sabers that means those are the ones, if they aren’t connected to anything else, that can be used for things like blade detect. :slight_smile:

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Thanks Ryryog! Great to learn this stuff and all makes perfect sense. :+1: :slight_smile:

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