Finally completed a thing on my bucket list for a long time, my own ESP32 Prototype Development Kit.

ESP32 is a powerful embedded development board. But the ESP32 DevKit design is not much breadboard friendly and has a weird pinout design. That is why I designed this development kit, to make my experiments easier with the help of built-in electronic components and breadboard.

I decided to share it open-source under Creative Commons Attribution-ShareAlike 4.0 International License.

Features

• Expanded GPIO pins with 3.3v and GND
• A tiny breadboard
• Li-ion battery
• USB charging controller
• Adjustable voltage booster (set to 5v)
• SSD1306 LCD module
• 3V3-5V logic level shifter (4 channels)
• 4 x LEDs (Red, Green, Blue, Yellow)
• 2 x DIP switches
• 2 x Pushbuttons
• 1 x Trimpot (10 kOhm)
• 1 x Active buzzer

And I decide to make this open-source, so you can find the schematics and Gerber files from GitHub https://github.com/NuwanJ/ESP32-development-kit