This kit typically includes:
CNC Shield V3.0 Expansion Board:
This red board plugs into an Arduino Uno and provides connections for stepper motor drivers, end stops, and other functionalities needed for CNC applications.
Arduino Uno (or compatible board): used as the microcontroller for the CNC Shield, interpreting G-code and controlling the stepper motors.
Stepper Motor Drivers ( DRV8825):
these modules are inserted into the CNC Shield and are responsible for driving the stepper motors with various micro-stepping options.
Heatsinks:
Small silver squares, often included to dissipate heat from the stepper motor drivers, especially when operating at higher currents.
USB Cable:
The blue cable, used to connect the Arduino board to a computer for programming and communication.