ESP32 30-Pin GPIO Expansion Breakout Board

Plugging a 30-pin ESP32 board directly into a breadboard blocks one full row of holes on each side, and the pins get harder to access once other components are wired around them - this expansion board solves both problems by mounting the ESP32 above the breakboard-facing header while doubling every GPIO pin out to two accessible connection points, so wiring stays organized and each pin is easier to reach even in a busier circuit.

Built on a 2-layer FR-4 PCB at a solid 1.6mm thickness, it's a genuinely sturdy alternative to jumper-wiring an ESP32 directly into a breadboard, reducing the loose-connection risk that comes with a board sitting directly in breadboard holes. It's specifically sized for the narrow 30-pin ESP32 variant without mounting holes - a real compatibility detail worth checking against the exact ESP32 board on hand before assuming it fits.

Common uses are stable, semi-permanent ESP32 prototyping setups needing reliable pin access, IoT and embedded projects wanting to avoid an ESP32 sitting loose in a breadboard, and general breakout convenience when a project's wiring is dense enough that direct breadboard pins become hard to access.