The esp32s module has 38 pins and has more features than a 30-pin module, narrower width, compatible with breadboard. ESP32 is a WiFi+Bluetooth chip developed. It is designed to provide access network functionality for embedded products.. ESP32s development board support Lua program, easy to develop, support
of three modes: AP, STA and AP + STA.. NodeMCU-32S is based on the ESP-32S module. The platform uses many open source projects, this module is safe, reliable, and scalable to a variety of applications.. The NodeMCU-32S has two rows of pins, 19 each, for a total of 38 pins. There are six basic pins responsible for power supply and enabling. The rated current of the pins is 6mA, and the maximum current is 12mA