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Step by step instructions with explanations to construct an LED and piezo buzzer circuit and program it to communicate SOS and other messages in morse code using Arduino ...

Make sure to connect positive pin(+) of buzzer to Arduino digital pin 7 and negative pin(-) to Arduino GND. In same cases, you may want to connect 100ohm series resistor between buzzer positive(+) pin ...

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 ...

All the code is available on GitHub in case you also have a DSC 1550 alarm system. It’s a pretty slick hack, ... Continue reading “Upgrading Your Alarm System With An Arduino ...

Open the Arduino software and paste the Arduino code (the text in the box near the bottom of the post) into a new sketch. Click Sketch > Verify / Compile to make sure the code is properly in there.

As a preview of his latest book, Arduino Project Handbook: 25 Practical Projects to Get You Started, Mark Geddes takes us through the project to create a simple laser trip wire alarm. You’ve probably ...

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 ...

An Arduino uno will handle all the processing and user inputs. An LCD display is provided for the user interface and a couple of buttons for user inputs. Depending on the button pressed the Arduino ...