Features:
High performance esp32 module ratio
Small volume, easily embeded to other products
Supporting Lua program, easily to develop
Reference links of ESP32 at below:
https: github. com-espressif-arduino-esp32
https: github. com-Nicholas3388-LuaNode
https: github. com-nodemcu-nodemcu-firmware-tree-dev-esp32
Tips: When you download the program to ESP32, you need to press the IOO button for 1-2 seconds.