I would like to share my first steps with the Grove 'plug & play' components. This is primarily a Buzzer. The sketch makes noise. This sketch makes you angry!
I'm surprised how loud a small loudspeakers can be. In other examples, it is used to play melodies as well as a signaling tone.
Once the Grove Base Shield is plugged onto the Arduino Uno R3, the Grove's universal cable can be used to connect the LEDs to port D6.
This short introduction reflects the available original example of Seeedstudio.
Further examples with an introduction in components from Grove Starter Kit can be found here: