User Manual

39
Active Buzzer
Note: The active buzzer has built-in oscillating source, so it will beep as long as it is electrified,
but it can only beep with a fixed frequency.
Step 1: Build the circuit
Active Buzzer Module SunFounder Uno
S ------------------------------------ D1
- ----------------------------------- GND
+ ------------------------------------ 5V
Step 2: Program (Please refer to the example code in LEARN -> Get Tutorial on our website)
Step 3: Compile
Step 4: Upload the sketch to SunFounder Uno
Now, you can hear the active buzzer beep.
SunFounder