ESP32 NODEMCU-32S ESP-32S Kit: high resolution pinout, datasheet, and specs
NodeMCU is an open-source development board and firmware based on the ESP8266 Wi-Fi SoC (System on Chip). It enables the easy and cost-effective development of Internet of Things (IoT) applications. NodeMCU is widely used by hobbyists and developers for its simplicity in programming, typically using Lua script or the Arduino IDE. It provides a platform for creating connected devices with Wi-Fi capabilities, sensors, and various input/output interfaces.
Here a little tutorial to learn how to manage a complete web server via esp8266 esp32 or other arduino like device.
Now a simple project to put all the information you have learned a temperature humidity secure web interface that retrieve data from a DHT12.