@Forum-user Looks like a MKS SERVO42C V1 board. See https://github.com/makerbase-mks/MKS-SERVO42C/wiki/MKS-SERVO42C-V1.0-Home

I'll have a look tomorrow how it can be wired. I'd guess you need to use the on-board interface to set the mode, covered here https://github.com/makerbase-mks/MKS-SERVO42C/wiki/Menu-instruction-V1.0

Ian

@dc42 ah bugger. It’s just where I currently have the two boards mounted is inside an electrical part off the side of the printer meaning they would need to be about 650-700mm long. I guess I could move the boards. Just a bit worried about heat as I will be heating the chamber at some stage

@gloomyandy Maybe I'm wrong? I was under the impression, all Cortex M0+ MCUs are dual core...