Hello,
Have a bit of an issue with my ramps setup after updating firmware.
If I turn my cooling fan on (via D9) or turn my heated bed on (D8) the other pin will also turn on. Its almost as if they are linked.
I have check and I am using the EFB motherboard config in marlin, pins.h is referring to the right board, and in the ramps.h the D8 refers to 8, D9 to 9. The FAN_pin also points to D9 and the heat bed pin points to D8.
I have replaced my Ramps 1.4 board and replaced the MOSFETT. I do not think this is a hardware issue. The activity LEDS for D8 and D9 will light up when either is triggered in software.
I cannot see any loose wiring or issues on the board itself.
Can anyone help?
Many thanks
Have a bit of an issue with my ramps setup after updating firmware.
If I turn my cooling fan on (via D9) or turn my heated bed on (D8) the other pin will also turn on. Its almost as if they are linked.
I have check and I am using the EFB motherboard config in marlin, pins.h is referring to the right board, and in the ramps.h the D8 refers to 8, D9 to 9. The FAN_pin also points to D9 and the heat bed pin points to D8.
I have replaced my Ramps 1.4 board and replaced the MOSFETT. I do not think this is a hardware issue. The activity LEDS for D8 and D9 will light up when either is triggered in software.
I cannot see any loose wiring or issues on the board itself.
Can anyone help?
Many thanks