Logic-level bed FET connected to RADDS pin - default to "on" when firmware not booted? March 12, 2019 06:29PM |
Registered: 5 years ago Posts: 11 |
Re: Logic-level bed FET connected to RADDS pin - default to "on" when firmware not booted? March 12, 2019 06:48PM |
Registered: 5 years ago Posts: 148 |
Re: Logic-level bed FET connected to RADDS pin - default to "on" when firmware not booted? March 12, 2019 08:28PM |
Registered: 5 years ago Posts: 11 |
Quote
Pippy
Hello
Which external MOSFET module do you have exactly I wonder?
Their are a few different types ..
MOSFET modules
Most all MCU's have their pins in high impedance mode when in reset/boot-up mode, so if the pin has an external pull-up then that would turn a FET on during that period (which you do not want). But it all depends on how you have it wired and on the external MOSFET schematic etc.
Re: Logic-level bed FET connected to RADDS pin - default to "on" when firmware not booted? March 13, 2019 03:20AM |
Registered: 10 years ago Posts: 14,672 |