52Pi Technology GeeekNET ESP32 Bluetooth and WiFi Microcontroller

The GeeekNET ESP32 Bluetooth and Wi-Fi Microcontroller Development Board is made with the official WROOM32 module. There is a built-in USB-to-Serial converter, an automatic bootloader reset and a Lithium Ion/Polymer charger. There's also all of the GPIOs brought out so you can use it with any sensor. Both WiFi and Bluetooth Classic/LE support; Dual-core ESP32 chip; Automatic bootloader reset; Lithium Ion/Polymer charger; 4 MB of SPI Flash; Tuned antenna