Ender 3 V3 SE Filament Detector

No Filament Sensor with 4 pins?

The motherboard has 4 pin connector but Creality recommends a 3 pin connector addon.

Something wrong?

Hi @canuqc, welcome to the forums!

I believe none of the filament sensors have 4 pins on them, they are all 3 pin. One of the pins on the motherboard is not used and this is completely normal.

The product page of the Ender 3 V3 SE also shows in the optional accessories section a picture of the optional filament sensor which has 3 pins. So you should be safe to purchase the filament sensor on their website for the printer :slight_smile:

Ah, yes, thank u, what pins should I use? :slight_smile:

:grinning: Found it, support says only 3 pins used but they don’t say which.

You’re welcome. Don’t worry about which pins are used and which ones aren’t, the cable plugs are keyed so they can only be inserted into the sockets one way so you will not have to worry about wiring/pins as the filament sensor cable should be designed to just plug straight in to the mainboard and filament runout sensor :slight_smile:

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