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Designing ESP-01 & 12 Upgrader / Flasher Tool

ESP-01 and ESP-12 are widely used WiFi modules in the hacker community, thanks to the esperssif for such a low cost WiFi chip.

Esperssif is quit active with the SDK development, And releases new versions almost every month, with some updated AT Commands or other firmware related upgrades.

It's quit a tedious to flash/burn the updated firmware into ESP.

Many hackers have build simple and nice PCB tools to upgrade/flash ESP.

I also thought to build one.
So here it is !!!

Those who want to know How-To Upgrading firmware of the ESP modules read this article.

I use ESP-01 for my small projects. I thought, it will be nice if I build a simple PCB widget, which will allow me to easily flash the latest firmware into ESP8266.
For this project, I simply integrated ESP-01 and ESP-12 footprint into single PCB [with RESET+FLASH buttons and GPIO options], in that way, one can add ESP module and flash the firmware with Zero errors.

There are going to be two versions of the tool..
  • 3.3V Version
  • 5V Version with LDO & logic level converter on RX-TX.
Designed in EAGLE Cadsoft tool. Double Layer. Small enough to sit at the corner of your bench.

Feel free to comment below about your suggestions, opinions, thoughts & ideas.

ESP*01/12 Upgrader/Flasher layout - 5V version.

Schematics - 5V version.

ESP*01/12 Upgrader/Flasher layout - 3.3V version.

Schematics - 3.3V Version.

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