STM8S001J3M3 USB Dongle with CH330N

I added a more complete header pin description and a few more use-case suggestions.

It's been a while since I wrote about this: a tiny STM8S001J3M3 / CH330 board. I was reluctant ordering this board from @oshpark  as it's just $2 for a set of 3 PCBs (including shipping from the USA!).

Since I updated the STM8S001RS485 node the order went up to $3.65. Shipping through USPS would have taken more than 5 weeks (plus up to 12 days for making the PCB of course), and I was OK with that...
... until someone from OSHpark reached out to tell me that my PCB got upgraded to Super Swift processing (5 business days!) AND to the FedEx "FAST" delivery service. As a result the boards were dropped in my mailbox after 8.5  days after I clicked "order"!

I decided not to waste any time and assembled the first board on the same day.

So here it is, my first working key-chain STM8 eForth "computer"

I improved the STM8S001RS485 PCB board and ordered it together with this design @oshpark .

I've been warned that the USPS is slow these days but I'll be patient.