ESP32S ESP32 ESP-WROOM-32 Development Board 2.4GHz Dual-Core WiFi Bluetooth 2 Function Microcontroller Low power consumption: the development board uses 2.4GHz dual-mode Wi-Fi, chip ESP32, and 40nm low power consumption technology 30PINS ESP32 Type This ESP32 breakout board is with double layer a design that is wired a pin on both sides. Do not require welding components. 2-type connectors The terminal breakout plate can be connected by pin header and screw terminal., Double layer PCB. Esp32 Bluetooth 3PCS ESP32 Breakout Board GPIO 1 Into 2 Compatible With 30 Pins ESP32S ESP32 Development Board 2.4 GHz Dual Core WLAN WiFi Bluetooth 2 -in-1 Microcontroller ESP-WROOM-32 Chip For Arduino Esp32 Bluetooth Prezzo Aazon.co: AITRIP 3PCS Type c 30pins CP2102 ESP-WROO-32 ESP32 ESP-32S... The ESP32 breakout board can extend one ESP32 Development Committee GPIO pin to two. ESP32 Breakout Board for 30PIN, ESP32 Development Board 2., 4 GHz Dual Core WiFi + Bluetooth 2-in-1 Microcontroller ESP-WROOM-32 Chip for Arduino Esp32 expansion board with wifi and bluetooth Note: The terminal breakout card is only suitable for the 30-pin version ESP DEVKIT V1