Note :There two choice for choose ,if you need ESP32 board ,please choose "with ESP32 board",otherwise it would not include.Compatible with Lego building blocks,shipping without lego building blocks.

The Keyestudio ESP32 42 in 1 sensor kit mainly contains 42 commonly used sensors/modules, a ESP32 board, a ESP32 expansion board and Dupont wires.
The 42 sensors and modules are fully compatible with the ESP32 Expansion Board. You only need to stack the ESP32 mainboard onto the ESP32 Expansion Board, and hook up them with Dupont wires, which is simple and convenient.
To make you master the electronic knowledge, detailed tutorials (Arduino C), schematic diagrams, wiring methods and test code are included. Through these projects, you will have a better understanding about programming, logic and electronics.

Download code,libraries and more details, please refer to the following link: https://fs.keyestudio.com/KS5003-5004

Note:ThisESP32-IO Shieldis only compatible with 8266 modules with a pin

spacing of 22.86mm. shown below:

KS5004 No ESP32 Mainboard