If so, remember to connect the VCC pin to 5V of the Arduino board to enable the control input pins IN1 and IN2. Also note at this point that, if you want perfect galvanic-isolation, do not link ...

Connect the Buzzer to the Relay Module: Connect one end of the buzzer to NO (Normally Open) and the other end to COM (Common) on the Relay Module. Upload the Code: Open the Arduino IDE and create a ...