ESP8266 Wi-fi Module after programing AT Command Problem

Projects General Guidance
1

I few week ago I install Arduino IDE in Raspberry Pi 3B+.
I want to program my esp8266 01 wifi Module so I install ESP8266 Board in Arduino IDE and I program it. I successfully program it and it work fine.ESP8266 01 wifi Module has only two GPIO so I thing this is good idea that to use wifi model with other microcontroller so I upload bareminimum in this model and connect properly with Arduino Nano ,External 3.3V power supply and Logic Level Shifter. I upload SerialSoftware code

#include <SoftwareSerial.h>

SoftwareSerial mySerial(10, 11); // RX, TX

void setup() {
  // Open serial communications and wait for port to open:
  Serial.begin(57600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }



  // set the data rate for the SoftwareSerial port
  mySerial.begin(9600);//I previously set 9600 bit's per second on Wifi Module
}

void loop() { // run over and over
  if (mySerial.available()) {
    Serial.write(mySerial.read());
  }
  if (Serial.available()) {
    mySerial.write(Serial.read());
  }
}

After opening Serial, Monitor I send AT Command in Serial Monitor so I did not respond nothing.
Before Programing ESP8266 01 wifi Module my at command work very fine but now I did not find any response.
Please help me how I fix it.
Thank You.

2

AT firmware is an application for the esp8266. as is your sketch uploaded from IDE.
only one application can be in the chip.
so upload the AT firmware, if you ant ti use the chip with AT firmware

3

but i did not have any window computer or laptop. i have only a one smartphone and raspberry pi. so what i can do now.

4

Krrishdheeraj:
but i did not have any window computer or laptop. i have only a one smartphone and raspberry pi. so what i can do now.

then use esptool for flashing the AT firmware

5

I try this but i did not able to flash software into esp8266 wifi module

6

"i did not able to flash" is far too vague for us to do anything with. If you want help, you'll need to provide a detailed description of what you tried and the problem you encountered.

7

Krrishdheeraj:
but i did not have any window computer or laptop. i have only a one smartphone and raspberry pi. so what i can do now.

In addition to the proper software tools, you need the proper circuit which means pull-up resistors and two pushbuttons and a powerful enough 3.3V power supply.

If any of the above is faulty, the programming for the ESP8266 firmware will not go well.
Many places where things can go wrong.