But the downloadable archives don't usually have four files in them, and if they do, they don't have filenames matching the ones shown in the examples. Some tools require specifying four different binary files, one for each particular address range of the flash chip. Part of the confusion is that there are a lot of different programming tools being used: binary executables, Python scripts, whatever. Note #2: Here's a newer post about building the hardware and reprogramming an ESP-201 module using the Arduino IDE. Note #1: If you would rather watch than read, there is a video at the end of this post that goes through the flash reprogramming process.
Since everyone is compiling new applications for the Espressif chip now, merely reprogramming the serial flash on the board should be easy, right? Just download a binary file and you're done! It turned out to be a bit more confusing.
I thought I would update the firmware on the ESP8266 to the latest version and see if it still worked. Nothing is working, even the things that was working before.It's been a while since I connected my ESP8266 board to a ZPUino soft processor running in a XuLA2 board. I have exactly the same as your first picture I'm lost, my esp8266 was with a newer version but as it was not working with your librairies, I have flashed it. Your ESP8266 board is now flashed with the updated firmware and ready to be used for your connected projects!ĭon't forget to take a look at my WiFiEsp library for Arduino. Insert the ATmega328P chip back into the Arduino boardĬompile and upload the updated sketch and you should be able to correctly interact with the ESP module.Remove the modifications made to the ESP shield. Now set the serial monitor speed to 9600 and test again the communication. To set the correct baud rate use this command: I suggest to set the ESP module to use 9600 or 19200 bps.
If you are going to use the ESP-01 module with Arduino Uno you have to lower the default baud rate because the SoftwareSerial interface maximum speed is around 38400 bps. The correct settings for the ESP firmware v1.5 are: Test connectivity with 'AT' and 'AT+GMR' commands. Open the Arduino IDE, select the correct COM port and open the serial monitor.
By removing the microcontroller you can use the Arduino Uno onboard FTDI interface to directly communicate with the ESP module. Remove ATmega328P chip from the Arduino board.This will provide a solid foundation for powering the ESP module and setup the communication to the Arduino board.Įnsure you are able to issue simple AT commands to the ESP-01 board before proceeding. This procedure is based on my cheap Arduino WiFi shield with ESP-01įirst of all you have to build my cheap Arduino WiFi shield with ESP8266. A reliable connection between ESP-01 module and Arduino board.
A Windows PC with Arduino IDE installed.I have to admit that I had some bad experience when trying to flash new firmwares to my ESP-01 modules but today I have found an easy and reliable way to flash ESP8266 firmware v1.5 (AT v0.51) using my Arduino Uno board as an FTDI controller.