0x14: ESP-12E breakout board


Internet of Things (IoT) is rapidly taking off and interesting new DIY maker modules are gradually becoming available. The popular ESP-12E from AI Thinker is available in various forms, but few breadboard-friendly products exist.


This PCB breaks out the connections to an AI Thinker ESP-12E module for rapid prototyping of IoT systems on a standard breadboard. The spacing between the two pin header rows is 1 inch (1000 mil) equivalent to 25.4 mm, so it occupies some space on a breadboard and also covers a power bus. A decoupling capacitor is included for power stabilisation. Note that the logic level is 3.3 V.

License terms
The 0x14 design is published under the Creative Commons Unported 3.0 License.  I do not profit from this design, neither should you. You are welcome to adapt, modify, and redistribute this design as long as the license terms are respected.

Physical size of PCB

50 mm (length) by 28 mm (width). Double-sided.

Rendering and photos

DipTrace 3D rendering, frontside without components

DipTrace 3D rendering, backside without components

Bill of materials

2 pcs. 1×11 male header, 2.54 mm (0.1″)

optional components

1 pcs. 100 nF ceramic capacitor, 1206

Estimated cost

Headers and a capacitors should not cost more than EUR 1,-.


DipTrace v. 3.1 PCB design file: 0x14 ESP12E breakout board – ratlined-public

Gerber files: 0x14

AI Thinker ESP-12E datasheet


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