Tutorial ESPEasy Firmware Upload

When you buy the ESP module it will most likely have the factory AT or NodeMCU (LUA) firmware inside. To get the ESP Easy running, you need to replace the firmware with the ESP Easy firmware first.

This can be done with a special flash upload tool that uses the ESP serial interface. You can download the latest stable ESP Easy build from our website. This downloadable zipfile contains the flash tool, a command batchfile to launch the actual flash process and three versions of the binary firmware image.

Make sure that you know the flash size of the ESP module that you're going to flash with the firmware as you need the right firmware file for this particular module.

Some information on well known modules:

512k Modules:
ESP-01 blue colored modules 
ESP-201 modules
ESP-12 modules 

1024k Modules:
ESP-01 black colored modules  

4096k Modules:
ESP-12E modules 
NodeMCU development board V1
Wemos D1 and Wemos D1 Mini

Step 1 - Find the right flash size of your module
Step 2 - Download the zipfile and unpack to a folder of choice.
Step 3 - Double Click "flash.cmd". A command windows should start with three questions.
Step 4 - Select the com port that your module or FTDI module is using
Step 5 - Select the flash size, 512, 1024 or 4096
Step 6 - Select the build version like 78 or newer.