Compatibility - Only compatible with the wide version ESP32 development board with mounting hole (38 pin). Not compatible with other versions. Function - GPIO 1 IN 2: Extends one ESP32 GPIO pin into two outputs, enabling reuse of pins in DIY smart home projects and providing a compact alternative to a breadboard. Construction and reliability - Double-layer PCB design wires the same pin on both sides for stable contact and reliable signal transmission. Connector options - Two connector types available: pin header and screw terminal. Choose the type that best fits your wiring needs. Key attributes - Function: doubles a single GPIO pin to two outputs - Compatibility: designed for the wide ESP32 development board with 38 pin mounting hole - Size and form: compact bypass and expansion solution - Material and construction: double-layer PCB for robust connections - Performance: stable contact and reliable signal transmission Use scenarios - Smart home projects: run two devices or sensors from a single GPIO pin, simplifying wiring for relays, LEDs, or modules - Prototyping and testing: quick wiring without a full breadboard, helping to keep builds neat and compact - Flexible development: easily switch wiring configurations during ESP32 development while preserving GPIO availability for other peripherals