Wiring Instructions Connect push buttons to digital pins on the Arduino UNO. Update the buttonPins array in the code accordingly. Connect the piezo buzzer to a PWM (Pulse Width Modulation) digital pin ...

Our schematic consists on 3 elements which are: Photoresistor (LDR), Piezo Buzzer, 1 – 10 kΩ. The LDR can be connected any way you want because doesn’t have polarity. For resistance you can use from 1 ...

Connect one terminal of the switch button to a digital pin on the Arduino (e.g., pin 7). Connect the other terminal of the switch button to the ground (GND) pin on the Arduino. Optionally, connect a ...

Figure an Arduino most matches the "Other" category. To be specific, it isn't an Arduino brand, it is a DigiSpark, but the trouble isn't with the device itself. The problem is with a buzzer. I got ...