START A BITParts · Lights and sound
Buzzer
Piezo buzzer
Makes a beep or a tune when a pin switches it on and off fast.
2Use it
| Pin or leg | What it is for |
|---|---|
| Long leg (+) | to the pin |
| Short leg (-) | to GND |
- Long leg to the pin, short leg to GND.
- Play notes with tone() on the Arduino, or a music block on the Micro:bit.
- It is loud: keep the notes short in class.
The idea behind it, step by step: Buzzer
Used in
3Facts
| Legs | 2: the long one (+) to the pin |
|---|
Kinds you may find
| Passive buzzer (piezo) | plays the note the pin sends: the one for tunes |
|---|---|
| Active buzzer | beeps by itself when it gets power: one note only |