Keyestudio Micro:bit Mini Smart Robot Car V2 Instructions Manual page 95

What will you see
Send the test code to micro:bit main board, then insert the micro:bit main board into the robot shield and
connect a 18650 battery; turn the POWER switch ON.
When the measured distance between an obstacle and ultrasonic module is less than 10cm, the passive buzzer
on micro:bit shield will beep up.
Note:
Open the Arduino IDE, select the proper board and COM port; then open serial monitor and set the baud rate to
115200, the measured distance value will print out on the monitor window.
Here you can click the link below to get more use details of Arduino IDE.
https://wiki.keyestudio.com/Ks0001_keyestudio_UNO_R3_BOARD
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