Product name: ESP32 expansion board.
Product color: green.
Product size: 78.2mm x 66.2mm/3.08 '' x 2.61''.
Product modes: AP, STA, and AP+STA.
Product packaging: One ESP32 expansion board.
Product structure: This product adopts 2.4GHz dual mode Wi Fi and Bluetooth chip ESP-WROOM-32, as well as 40 nanometer low-power technology.
Product features: This product can expand one GPI0 pin of the esp32 development board to two, making it convenient for users to reuse all pins in smart home projects. It is a good bread board replacement.
Product Design: This product is designed as a double-layer board, with one pin connected on both sides. Therefore, the circuit is stable and reliable, and there will be no poor circuit contact or unstable signal transmission.
Product compatibility: This product is only compatible with the 38 pin narrow and non mounting hole version of the ESP32 development board.

Be careful:
Due to differences in display and lighting effects, the actual color may differ slightly from the image.
2. Due to manual measurement, please allow for deviation in length.