OSOYOO Breakout Board for 30-Pin or 38-Pin ESP32-WROOM/WROVER & ESP8266 NodeMCU, Not for ESP32-C/S/H/P Series

Compatibility Notice — Please Read Before Purchase

This breakout board is compatible with most 30-pin ESP32-WROOM, ESP32-WROVER, and 30-pin ESP8266 NodeMCU development boards ONLY.

1. It is NOT compatible with any boards in the following ESP32 series:• ESP32-P series (e.g. ESP32-P4)

• ESP32-S series (e.g. ESP32-S2, ESP32-S3)

• ESP32-C series (e.g. ESP32-C3, ESP32-C6)

• ESP32-H series (e.g. ESP32-H2)Before purchasing, please verify the following about your development board:1. Chip model — must be ESP32-WROOM, ESP32-WROVER, or ESP8266

2. Pin count — must be exactly 30 pins

3. Pin layout — must match the standard 30-pin WROOM / WROVER or ESP8266 NodeMCU pinout

Compatibility Table

Key Features:

1. Compatibility:

Supports 30-pin ESP32-WROOM and ESP32-WROVER development boards, and 30-pin ESP8266 NodeMCU boards ONLY

Includes two sets of 2×15-pin headers for enhanced compatibility with a variety of modules with pin widths of 0.9/1.0/1.1 inches

(22.86/25.4/27.94 mm).

2.LED Indicators:

Each GPIO port has an LED indicator to display the status (high/low) of the pins, making it easier to debug and verify code without

additional wiring.

Independent LED, The status LED is driven by the chip instead of the GPIO so the GPIO will not be affected.

3. Power Protection

Features a reverse power protection circuit to prevent damage if the power is connected incorrectly.

On-board power switch for convenient control.

Power Options:

Dual power supply: 5V/2A and 3.3V/500mA, providing ample power for servos and sensors.

Automatic power switching between USB and external power sources.

External power input via screw terminals or DC jack (7-12V recommended).

Voltage Selection:

The V_Selector jumper allows you to choose between 3.3V and 5V for the V pin. By default, the V pin is set to 3.3V. Ensure the correct

voltage is selected to avoid damaging the board or connected devices.

4. Easy Connectivity:

2.54mm pitch pin headers and screw terminals for seamless connection to sensors, servos, and other peripherals.

On-board 3-pin interfaces with V and GND pins for easy sensor or servo connections