RAMPS D10 erratic LED behaviour

General discussion of 3D printers

RAMPS D10 erratic LED behaviour

Postby orcinus » Mon Sep 16, 2013 6:17 pm

I've got a RAMPS 1.4 board hooked up on a new printer build and it's exhibiting some pretty weird behaviour...

Now, i've had one RAMPS before that i've soldered and assembled myself and that one was working beautifully.
This one came pre-soldered and has a bizarre issue - the D10 LED keeps blinking randomly.

I'm only queueing manual G1s, nothing's touching the MOSFET outputs. Yet D10 keeps blinking in random intervals, even when the board/printer is idle.
Nothing's connected to D10 either.

Any ideas on what might be causing it?
I'm suspecting either a floating pin somewhere or a crappy MOSFET.

It's not exactly vital to this printer build (i'm only going to be using one or possibly two MOSFET outputs), but it's annoying.
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