- Dual-Row Header Breakout: Most Goouuu models expand one GPIO pin into two rows of headers, making it easy to bridge multiple sensors to a single pin.
- Versatile Power Inputs: Supports Type-C, Micro-USB, and a DC Barrel Jack (6.5V–9V or up to 30V depending on the model) for flexible power delivery.
- Onboard Power Indicators: Integrated LED indicators for real-time monitoring of power status.
- Mounting Options: Includes fixed 3mm mounting holes for permanent installation inside project enclosures or industrial control panels.
- Breadboard Eliminator: Removes the need for repeated soldering or messy jumper wire setups during iterative testing.
Goouuu ESP32-S3 Expansion Board
| Compatibility | 38-pin, 42-pin, or 44-pin ESP32-S3 modules |
|---|---|
| I/O Access | Breaks out all GPIO, Power, and GND pins |
| Power Input | DC 5V (USB) / DC 6.5V–9V or 6.5V–30V (Jack) |
| Output Voltage | Regulated 3.3V and 5V rails |
| Pin Spacing | Standard 2.54mm (0.1 inch) |
| Dimensions | Approx. 78mm x 53mm or 83mm x 83mm (Model specific) |



- Business/Commercial: Rapidly test hardware for industrial automation gateways or environmental monitoring hubs before final PCB manufacturing.
- Single User/DIY: Ideal for “Smart Home” projects requiring high-current peripherals, such as driving LED strips (WS2812B) or OLED/TFT displays.
- Educational Labs: Simplifies student hardware setups by providing clearly labeled pins and reducing accidental short circuits.
No. In most Goouuu expansion board models, the USB ports are for power input only. To upload code or use the Serial Monitor, you must use the USB/Type-C port located directly on the ESP32-S3 development board itself.
It allows you to connect a peripheral to a pin and still have an open terminal for a logic analyzer, multimeter probe, or an additional parallel sensor without messy splicing.
Yes, provided you adhere to the specified voltage range (typically 6.5V–9V for basic models, up to 30V for premium models). Always verify your specific board’s limit to avoid damaging the onboard voltage regulator.
The expansion board is designed for 3.3V logic ESP32-S3 modules, but it provides both 5V and 3.3V power outputs to support different types of external sensors.
Yes. The board features pre-drilled 3mm mounting holes at the corners, making it easy to secure with standoffs or screws into a project box.











