The new All-In-One PCB is ready for production!
The first printed boards were buggy and i had to disable 2 MIDI ports for not burning my table:
I just received the fixed one and it works like a charm:
So, i’ve ordered a few of them for all of you
These are the features:
A GPIO expander MCP23017 is used for managing all input from encoders and switches. Only I2C pins and GPIOs 25 & 27 are used.
It includes 3 standard MIDI ports (IN, OUT & THRU) with optional activity LED. UART pins (TxD & RxD) are used for this. All the 3 ports are opto-coupled following the scheme shared by @Imager
You can find the project files in the HW repository:
This is my first KiCad project and probably it’s a complete mess for a good electronic dessigner Anyway, i’m really happy with my new tool and i hope to bring more and better PCB designs to the community in the near future …