Melzi board use SPI pins for Z endstop
Hi,
I have a Melzi board and use the Z min endstop pin for a leveling sensor, but would like to add a Z max endstop. There are no "free" pins available on the microcontroller.
Would it be possible to use the SPI pins (MISO/MOSI) for that? They are defined in the pins.h and seems to be used for something, but i'm not sure for what? (Besides programming, but that's only relevant during the bootloader stage, right?)
I tried redefining the MISO pin for z max endstop, but that didn't seem to do the trick.
Regards,
Marc
I have a Melzi board and use the Z min endstop pin for a leveling sensor, but would like to add a Z max endstop. There are no "free" pins available on the microcontroller.
Would it be possible to use the SPI pins (MISO/MOSI) for that? They are defined in the pins.h and seems to be used for something, but i'm not sure for what? (Besides programming, but that's only relevant during the bootloader stage, right?)
I tried redefining the MISO pin for z max endstop, but that didn't seem to do the trick.
Regards,
Marc
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