Can you tell me what is the difference between the software development kit sdk5.0 and sdk3.0?
The main architecture is the same, that is, they all base on the RWIP -- the message queue mechanism.
SDK5 fixed some bugs in SDK3
SDK5 APIs is easier to use than SDK3
Thank you for your answer.
Which of the lower power consumption is the data transmitted by the custom service and the serial port service?
The power consumption is not depend on what the profile is you used but what the connection parameter is you configured. You should enable the sleep mode first and then configure the connection parameter as your requirements.
By the way, do you speak Chinese? Here is Chinese forum, so we can talk in Chinese here