Freenove Ultimate Starter Kit

277
Chapter 27 Solder Circuit Board
█ www.freenove.com
support@freenove.com █
Test circuit
Connect the circuit board to power supply (3~5V). You can use Raspberry Pi board or battery box as the
power supply.
Press the push button after connecting the power, and then the buzzer will make a sound.
Anode
Cathode
Tear the label off