This is D1 Mini ESP32 ESP-32 WiFi+Bluetooth Internet Of Things Development Board
- Use espressif AT COMMAND for esp32 MINI KIT:
- http://mh.nodebb.com/topic/11/use-espressif-at-command-for-esp32
- https://github.com/MHEtLive/ESP32-MINI-KIT/tree/master/Shield%20libraries