Quote Originally Posted by volatile666 View Post
Lets say one wanted to use CAN to control it. Then there would be free:
-I2C Data and CLK
-USART RX/TX/CTS
-PWM in

So thats 6 IO free to use. Additionally there still would be 2 free LEDs, thats 2 more IO, and youd still have SWD.
btw, what do you want to sense? For its own current there is already a shunt onboard...
Good luck with that, let us know how it works out for you.