I have tested the board under low voltage before, but this time I will test it under high temperature. Since I have left school, the conditions are limited and I cannot reach the manual limit temperat
The PC sends ABCD to the microcontroller serial port 1, which receives the data and forwards it to the PC via serial port 2, which gives ABC. Is the data lost? The speed of processing the reception sh
[b]I. Single-choice questions: In the following questions, fill in the only correct answer code in the brackets (This question is divided into 13 questions, each question is 2 points, a total of 26 po
[p=30, 2, left][font=微软雅黑][size=4]I received the board yesterday afternoon. The board is well made and has RoHS certification. [/size][/font][/p][font=微软雅黑][size=4] Then I followed the post shared by