Connect the kit and PC with a USB cable.

Briefly press push button S3 (labeled M10) if you are using the MAX10 FPGA board.
If you are using a sensor board and battery board combination, press the battery board push button S1 (near the battery holder) briefly.

After pressing the button, it enters the menu mode and the LED on the Sensor board lights up. On your PC, start the Windows-based Tera Term and launch the console as described in the user manual.