MK312BT firmware


I’m new to the site and found the MK312 stuff on Github. Has anyone been able to get source code (or write source code) for the AVR?

I’m thinking about trying to… redesign the hardware to modernize it a bit. More outputs, get rid of the serial input (is that actually used for anything useful if you have BT?), maybe a nicer display, higher output power, new transformers (maybe?), and a better battery system – seriously, lead acid?

I was wondering if anyone had a starting point for the firmware or at least the waveforms?


Your best bet is probably to hop on the discord server ( and check out the #estim channel. Lots of people working on various projects there.