NodeMCU-32S is a core development board designed by Essence based on the ESP32-32S module. The development board continues the classic design of NodeMCU 1.0, leading most of the I/O to the headers on both sides, and developers can connect peripherals according to their needs. It features WiFi+Bluetooth connectivity, onboard CH340, and keys. What's more, all the I/O pins of the ESP32-S module are accessible via the extension headers. When using the breadboard for development and debugging, the standard headers on both sides can make the operation easier and more convenient.

This base board is designed to ease the prototyping using the NodeMCU-32S board. It extends the GPIO of NodeMCU to header pins, which also includes the Vin, VUSB, 5V, 3.3V, and GND. You can further use these pins for prototyping, with the male to female jumper wires. With the onboard voltage regulator, you can now power the NodeMCU and whole system with DC jack, voltage range from 6V to 9VDC. The board also comes with a power indicator.