new cnc cape

[GULANG]

Hello, everyone .

 I'm new drawing a cnc cape sch..

It‘s with 19 Optocoupler isolation  INPUT(11 INPUT use for MPG ,) and 16 Non-Isolated OUTPUT (use 74ls244 )

I use mcp23017 i2c bus  for 16 input(for limit --max/min/home etc.)..

BUT， I'm not a electronic engineer，so Dare not confirm right。。

Hope electronic engineer proofreading.

After perfection，I will open source。。