Why when using esp8266 use serial assistants send instruction to module module to work properly, send command module have no reaction, MCU and 115200 baud rate is correct, the power connection is correct, the other attachment is correct, is to have no reaction, using serial assistants and single chip microcomputer communication also display correctly printed instructions, newline carriage return have, don't know why a module is no reaction

CodePudding user response:

Single chip microcomputer data sending and receiving the code has a problem, RI is not set?

CodePudding user response:

RE not set?

CodePudding user response:

reference 1/f, worldy response:

single chip microcomputer data sending and receiving the code has a problem, RI is not set?

Single chip computer to send and receive no problem, use the serial port assistant demonstrated that esp8266 module also no problem also verified, is to use single chip microcomputer communication is not successful, I find the Internet a lot didn't solve

CodePudding user response:

refer to the second floor worldy response:

RE not set?

The Settings are set up, a serial port assistant: sure, just single chip initialization esp8266 module has a problem, esp8266 basic didn't response

CodePudding user response:

Feeling will post some code and serial debugging assistant debug screenshots to direct view

CodePudding user response:

I mean your microcontroller program may have a problem

CodePudding user response:

With single-chip microcomputer serial port to send simple first the AT command, use the Debug mode to an instruction of an instruction, see ESP8266 returns a string