How to connect Wismo218 to the microcontroller with supply power 3.3V, there is an interface scheme?
A note at the end of the UART section in the Datasheet says,
So, can you run your microcontroller at 3.0V instead of 3.3V ?
No to start the microcontroller on 3.0V it is extremely undesirable (it is the minimum threshold of work of the microcontroller and used devices thus are disabled).
i suggest you use a logic level translator, all the major ic-companies have one or more
Yes - the clue is in the name… 8)
Implemented a solution from WM_PRJ_Q2400_PTS_005-007 page 19-20.
How to update firmware module Wismo218?