# FAQ



### Q: What type of batteries should this kit be equipped with?


A: Six AA batteries, each one with the diameter of 14MM and height of 49MM. Please install batteries in a correct way and do not reverse them! For younger learners, please operate under the accompaniment of parents.


### Q: An error occurs when burning programs on ESP32 mainboard.


A:

-  Please check whether the COM port is correct.
-  Please check whether the selected board is correct.


### Q: Can this kit expands to other modules?


A: Yes. When expanding to other modules, please check pin description to make sure that ESP32 pins work normally.


### Q: An error occurs when importing <Wire.h> library.


A: When installing ESP32 development board on arduino IDE, <Wire.h> library will be imported automatically, so you don't need to add it repeatedly.