For people not willing to read check this great video from Chris Riley :
[](https://www.youtube.com/watch?v=pJGBRriNc9I)
## Download and prepare the Arduino IDE: ##
`1.1` Install Arduino IDE version 1.X from https://www.arduino.cc/en/Main/Software
`1.2` Install the Arduino IDE
`2.` Open the Arduino IDE and click File, Preferences
`2.1` In the "Additional Boards Manager URL field: Paste: http://arduino.esp8266.com/stable/package_esp8266com_index.json
`2.2` Click OK
`2.3` Click Tools -> Boards -> Board Manager
`2.4` Scroll to near the bottom, and find "esp8266 by ESP8266 Community) and click on the row
`2.5` On the "Select Version" dropdown, select latest version and click Install
`2.6` Wait for the ESP8266 support to be installed
`3.` Download and install the SPIFFS Uploader tool
EDIT:This part is no more necessary since FW 0.9.99 which contains self uploader
`3.1` Go to https://github.com/esp8266/Arduino/blob/master/doc/filesystem.rst#uploading-files-to-file-system
`3.2` Download the ESP8266FS tool from the page above
`3.3` Open a file manager to your Arduino sketchbook directory. If you don't know where that is, click File, Preferences in the Arduino IDE and look at the field: Sketchbook Location
`3.4` Inside your sketchbook folder, create a new directory called 'tools'
`3.5` Extract the content of ESP8266FS-x.x.x.zip into Tools (So it ends up with something like /home/user/Documented/sketchbook/tools/ESP8266FS/tool/esp8266fs.jar
`3.6` Restart the Arduino IDE
## Download and install the code ##
`4.` Download the latest release of this project:
https://github.com/luc-github/ESP3D/releases/latest
`4.1` Extract it to your sketchbook or other location
`4.2` Open the Arduino IDE and open the ESP8266 subdirectory -> esp8266.ino (or esp3d.ino for latest versions)
`5.` Configure your Board
_NB: Read [this article for NB notes](https://github.com/luc-github/ESP8266/wiki/Flash-Size) on selecting the correct Board settings._
To recap:
`5.1` Make sure you have the clock speed set to 160Mhz
`5.2` Make sure you have the correct Flash size selected (More details [here](https://github.com/luc-github/ESP8266/wiki/Flash-Size#figuring-out-the-flash-size))
_Next: Configure your ESP8266 for upload (USB to serial plugged in, GPIO0 and GPIO15 pulled low, RST pulled high)_
`6.` Upload the sketch: Click the Upload button in Arduino IDE (Or press Ctrl+U)
_Reboot the ESP8266 into run mode ((USB to serial removed , GPIO0 pulled high, GPIO15 pulled low, RST pulled high)_
`7.` Fire up a device and scan for WIFI access points
`7.1` Find the AP called 'ESP8266'
`7.2` Connect to the AP using the default password of '12345678'
`7.3` Upload index.html.gz file to the SPIFFS filesystem using web page uploader
## Initial Configuration ##
`9.` Open device web page on the AP connected device
`9.1` Accept Captive portal redirect or
`9.2` Open a web browser and navigate to http://192.168.0.1
`10.` Login in using admin/admin and configure the device to your choosing
`10.1` I recommend changing to Station mode and connecting to your home/office Wifi instead of staying in AP mode
`10.2` You may want to change the Baud rate
`10.3` You can change to DHCP, or at the very least setup a Static IP you are familiar with.
## Wire up and use ##
`11.` Connect to your printer's serial port
**Other NB things to keep in mind:**
* After applying power the ESP8266 takes approx 10 seconds before it will send "M117 " on the serial port. If your printer is connected to the ESP8266, and has an LCD connected, the M117 command is "Print this message to the LCD" - i.e after a successful boot it will print the IP address to the printer's LCD
* If you mess up a configuration you can pull down GPIO2 during reset/powerup to wipe the settings stored in EEPROM.
# Still having issue ?
If behavior is not consistent, you may need to erase the full flash, for that use the esptool present in your ESP core instalation in tools directory with option `--chip auto erase_flash`
So in my case on git version of ESP32 under windows :
`C:\Users\user\Documents\Arduino\hardware\espressif\esp32\tools\esptool>esptool.exe --chip auto erase_flash`
esptool can also be found here : https://github.com/espressif/esptool