Here you will find more functions of the Joy-Car, which go beyond the previous motor functions, sensor queries and light settings.
Buzzer
![](/files/files/Anleitungen/MakeCode/Tutorials/12_joycar-more/en/misc-en-1.png)
Play a predefined melody through the buzzer. You can also choose if the melody is played only once or if it should be repeated permanently.
Battery voltage
![](/files/files/Anleitungen/MakeCode/Tutorials/12_joycar-more/en/misc-en-2.png)
The battery voltage can be queried via the analog-digital converter pin of the micro:bit. This way the remaining battery capacity can be determined.
Battery voltage reading - Example 1
In this example, the current battery voltage is read out. The read out value is output on the LEDs of the micro:bit. Afterwards a V (for Volt) is output. Then the LEDs are reset with clear screen. After a 5 second pause, the "forever" block starts again.
![](/files/files/Anleitungen/MakeCode/Tutorials/12_joycar-more/en/09-4_more_01_1.png)
Buzzer - Example 1
Using the "play music" block is quite simple. Choose a melody and define if it should be played once or permanently.
![](/files/files/Anleitungen/MakeCode/Tutorials/12_joycar-more/en/09-4_more_02_1.png)