After uploading the code the Piezo will start making short beeps. On bright light the Piezo will only beep and on dark light it will be short. Some ideas for this experiment: Alarm for Lights in the ...

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 ...

You'll need a DC piezo buzzer or siren, a 10k Ohm resistor, an NPN transistor, two nails, 4 AA batteries and a battery pack, and an extremely thin wire to act as the trigger. EngineeringShock used ...

Electromagnetic interference problems can be a real headache to debug. If you need to prove what causes your WiFi to slow down or your digital TV signal to drop, then the ability to measure electro… ...