SoftwareSerial response is semi-gibberish using ESP8266

Question

I have a working SoftwareSerial connection to my ESP8266 module on my Arduino UNO board. However, the response I get from the ESP8266 using the SoftwareSerial library is semi-gibberish.

So I do get the correct response, but some characters are changed. For example when I ask the IP of the module, it sometimes returns the right IP, but most of the times just alters the IP, for example 092.168/123.5.

So what am I doing wrong?

This is the code I'm currently using:

#include <SoftwareSerial.h>

SoftwareSerial esp8266(10, 11);

void setup() {
  Serial.begin(115200);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }

  Serial.println("Started");
}

void loop() {
  if (esp8266.available()) {
    Serial.println(esp8266.readStringUntil("\n"));
  }
  if (Serial.available()) {
    esp8266.write(Serial.read());
  }
}

When I send the AT command, I sometimes get OK□ or some other extra random characters.

So how do I make the SoftwareSerial show (or receive) the correct response?

Answer 1

Try lowering your baudrate to 9600.

https://blogs.msdn.microsoft.com/abhinaba/2016/01/23/esp8266-wifi-with-arduino-uno-and-nano/