Is there a troubleshooting guide for ESP8266?

Is there a troubleshooting guide for ESP8266?

ESP8266 Troubleshooting Guide. The ESP8266 has a few common issues, specially when you are trying to flash a new firmware or uploading scripts. This is a companion guide to the Home Automation using ESP8266 and Password Protected Web Server eBooks.

What causes NodeMCU to crash with ESP8266?

Expecting more work from u for NodeMcu with Lua. You are right Sanjay, most of the ESP8266 unexpected behavior is due to power supply issues that causes the ESP to crash. Hi Rui. I got that : ¤üFatal exception (0):

Can a watchdog timer reset the ESP8266?

During this time, processes like WiFi communication and managing the TCP/IP stack also can’t run, and the Watchdog Timer is there to reset the ESP8266 in such cases.

Why is my ESP running only one TCP server?

ESP8266 Troubleshooting – ESPlorer IDE. ESPlorer IDE Error: only one tcp server allowed. This means that you tried to upload multiple scripts and you ESP is still running the old script with a web server. To fix it, you simply need to send these commands to delete all the files and restart your ESP:

What causes ESP to restart when something is wrong?

This is how ESP reacts to abnormal behavior of application. If something is wrong, it restarts itself to tell you about it. There are two typical scenarios that trigger ESP restarts: Exception – when the code attempts an illegal operation , like trying to write to non-existent memory location.

What should the baud rate be for ESP8266?

If this process fails, please repeat the same procedure for the next baud rates (38400, 57600, 74880 and 115200). I don’t know why, but at least 5 people faced the same problem and this trick solved it.

Can a ESP8266 be used as a microcontroller?

The ESP8266 as a microcontroller: the ESP8266 can be used as a normal microcontroller, just like an Arduino Network protocols: Before we start using the Wi-Fi capabilities of the ESP8266, I’ll teach you some of the network protocols involved

Can a ESP8266 connect to an Arduino Uno?

I have a ESP8266_01, and I wired up. It does not work for me. I have connected the ESP to an Arduino Uno. I am using a 5V pin from uP with a 3.3V regulator, and I have a voltage divider between RX (ESP) and TX (uP). And I am sure that the wiring is correct. The thing is, I am not getting anything back from ESP, not even errors.

Why is my ESP not reachable after a while?

All that keeps working fine. Memory foot print is also normal. So while my ESP is able to reach the internet it’s IP address is not reachable from within the local network. If I reset my ESP or turn my modem ON/OFF (to again assign the IP address) the issue goes away for a few hours.

What causes ESP8266 to crash when using Lua?

On using 3.3 volt supply from external sourcesolved all such problems. Making system reliable. Expecting more work from u for NodeMcu with Lua. You are right Sanjay, most of the ESP8266 unexpected behavior is due to power supply issues that causes the ESP to crash.

Do you need esp-8266 for Arduino Uno?

You don’t need the ability to program and ESP-8266 in the IDE to use this board, you can not upload sketches to it, you can’t access the GPIOs.

How to erase ESP8266 stuck on reset loop?

To erase the flash, you can use esptool (the same one which is used by Arduino to upload the sketch). Run it like this: esptool -cp -cd ck -ce. Make sure the ESP is in bootloader mode before running this command (if you are triggering it manually).

What happens when you upload a script to ESP?

If you upload a script to your ESP and when you restart it your ESP doesn’t do anything. It means that your ESP couldn’t find the script or it occurred a memory issue. This can be solved like this: You didn’t save your script with this exact name ‘init.lua’.