Hardware
- PHPoC Blue (+ USB WLAN) or PHPoC Black (+ Ethernet cable)
- Micro USB to USB Cable (to upload source code to PHPoC Device)
- Piezo Buzzer
- Jumper Cable
About Buzzer
Buzzer is used to make sound, tone and alerts. The buzzer used in this example includes three pins:
- VCC pin.
- GND pin.
- Signal pin (receives the control signal from controller).
- If generating a square wave of the specified frequency