ESP32 Mini Development Board HiLetgo With WLAN Microcontroller Board With WiFi ESP32 Mini ESP-WROOM-32 Development Board ESP32 Mini development board, everything needed to program the ESP32 module, ESP32/32S WIFI Development Bluetooth ESP8266 Module CP2104 for Arduino IDE WLAN WiFi Bluetooth CP2104 Internet of Things Development Board with Pins Features: The chipset that incorporates is the ESP32-WROOM-32 and a chipset for the CP2104 serial port with 4 megs of space for development. Power supply voltage (USB) 5V DC Micro USB connection; Compatible with Input/Output voltage 3.3V DC Operating current min. 500mA RAM 512kB I/O Pins 34 Package Included: 3* ESP32 Mini ESP-WROOM-32 Development Board 500mA RAM 512kB I/O Pins 34 Package Included: 3* ESP32 Mini ESP-WROOM-32 Development Board ACEIRMC D1 Mini NodeMCU ESP32 ESP-WROOM-32 WLAN WiFi Bluetooth Iot Development Board 5v Compatible For Arduino 5pcs Power supply voltage: DC 5V (USB)