Feature:
High performance esp32 module
Small volume, easily embeded to other products
Supporting Lua program, easily to develop
Complete microcontroller with WLAN (802.11bgn) and Bluetooth (Classic and LE)
Reset and boot buttons are available, so a new firmware can be quickly and easily installed
The development board combines a CPU with 2 Tensilica LX6 cores, clocked at up to 240 MHz, and 512 kilobytes SRAM in a single microcontroller chip
Tips:
When you download the program to ESP32, you need to press the IOO button for 1-2 seconds.
Reference links of ESP32 at below:
https:github.com/espressif/arduino-esp3
https:github.com/Nicholas3388/LuaNode
https:github.com/nodemcu/nodemcu-firmware/tree/dev-esp32