[yagodajm]

Good evening. My Gecko 540 recently died. I tried to make repairs, but it was more than just the two output MOSFETs. I am trying to go with some other driver for my CNC. They are the same ones I am using on my laser engraver, and they seem to work well. I just have a question on the on-the-power to them. I am using the driver that is attached to this post. My question is for the Pull+ and Dir+: do I have to use 5V, or can I use 12V? I am coming directly off of a breakout board from the UC300ETH to the drivers. I don't want to put like 12V and fry my UC300ETH. Right now, I am using 5V because I have a 5V converter.

Thanks,
Justin

[cncmakers001]

Good evening. My Gecko 540 recently died. I tried to make repairs, but it was more than just the two output MOSFETs. I am trying to go with some other driver for my CNC. They are the same ones I am using on my laser engraver, and they seem to work well. I just have a question on the on-the-power to them. I am using the driver that is attached to this post. My question is for the Pull+ and Dir+: do I have to use 5V, or can I use 12V? I am coming directly off of a breakout board from the UC300ETH to the drivers. I don't want to put like 12V and fry my UC300ETH. Right now, I am using 5V because I have a 5V converter.

Thanks,
Justin

Stick with 5V for the Pull+ and Dir+ signals from your UC300ETH to the drivers,
and you’ll be safe! If your drivers are marked for 12V and you feel confident in their specs,
you could technically use 12V, but it’s best to align with 5V logic to avoid any risk to your UC300ETH.

[joeavaerage]

Hi,
you'd be better still using some sort of breakout board, going direct from the UC300 is asking for trouble.

Craig

[yagodajm]

Stick with 5V for the Pull+ and Dir+ signals from your UC300ETH to the drivers,
and you’ll be safe! If your drivers are marked for 12V and you feel confident in their specs,
you could technically use 12V, but it’s best to align with 5V logic to avoid any risk to your UC300ETH.

Thank you, I was not sure it the uc300eth was controlling everything through the ground or through the +5v. I know on the gecko, it would break the ground wire.

[yagodajm]

Hi,
you'd be better still using some sort of breakout board, going direct from the UC300 is asking for trouble.

Craig

So I have my uc300 on a mobo and that goes out to a standard breakout board. I am not sure if I need something more then that or not. Attached it the mobile and breakout board I am using.

Thanks,
Justin