What is it?

ESP32 DevKits are great for a quick proof of concept or a weekend project, but what happens when you need to debug your code?

This adapter will stack between your breadboard and expose the JTAG pins in either 10 pin esp-prog format or 20 pin standard Segger J-LINK format.

We've tested this adapter with both esp-prog and Segger J-Link, each one have some quirks but for debugging, tracing and SystemView it works!

Tested with ESP32 OpenOCD and PlatformIO Unified Debugger

Why did you make it?

To make it easier to debug firmware, get trace logs and watch FreeRTOS events.

What makes it special?

Its unique, the first of its kind to expose these pins while the ESP32 DevKit sits inside a board.

Specs

Suitable for ESP32 38 pin DevKits only!

Should not be used if any of the JTAG GPIOs are in use(14,12,13,15)

10 pin IDC socket

20 pin IDC socket

2 x Stackable 19 pins

Fits 25mm and 23mm wide DevKits, measure before you solder!

This kit is not soldered and No Cables are included