OSOYOO MCU Expansion Debug Shield Series

Introduction

OSOYOO Breakout Board Series offers expansion boards for Arduino, Pico, Pro Micro, and ESP32/ESP8266, all featuring independent LED indicators on every GPIO pin for instant visual debugging. Each board includes reverse polarity protection, 5V/2A external power, screw terminals, and 3-pin sensor ports—delivering a consistent, reliable, and code-visualizing experience across all major platforms.

For Arduino Nano	For arduino pro micro	For raspberry pico
For 30P ESP32 & ESP8266	For 38P ESP32	For arduino UNO