buzzer
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Arduino Based Piano with Recording and Replay Arduino has been a boon for people who are not from the electronics background to build stuff easily. It has been a great prototyping tool or to try something cool, in this project we are going to build a small yet fun Piano using the Arduino. This piano is pretty much plain with just 8 push buttons and buzzer. It uses the tone() function of Arduino to create various types… |
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Understanding Difference between Active and Passive Buzzer and How to use it with Arduino There are many ways to communicate between a product and a user, but the most common and popular choices for audio communication is the buzzer. The buzzer plays a very important role in electrical and electronic devices. We often encounter buzzers in common devices such as alarm clocks, doorbells, or other household appliances.… |
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Arduino based Morse Code Generator Morse code is a system of communication to encode any character in two different durations of signals called Dots and Dashes. Morse code is developed by Samuel F.B. and further used in telegraphy for transferring secret information. It was most used at the time of World War II. A Morse code can be performed by tapping, flashing light or writing. The Morse code is available… |
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Automatic Medicine Reminder Using Arduino When it comes to our loved ones, we always want to keep them healthy and fit. But what will happen if they get ill and forget to take medicine on time? We would be worried, right? At hospitals, there are many patients, and it is difficult to remind every patient to take medicine on time. The traditional ways require human efforts to remind them to take medicines on… |
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Smart Blind Stick using Arduino Ever heard of Hugh Herr? He is a famous American rock climber who has shattered the limitations of his disabilities; he is a strong believer that technology could help disabled persons to live a normal life. In one of his TED talks, Herr said, “Humans are not disabled. A person can never be broken. Our built environment, our technologies are broken and disabled. We the… |
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Fridge Door Alarm Circuit using 555 and LDR The name of the circuit itself infers the application. This circuit triggers the alarm if the door of Fridge is left open for the long time. When the door of the refrigerator is left open, the temperature inside the cabin will increase. This rise in temperature will be sensed by thermostat and try to cool down the cabin. It will always try to maintain constant temperature of… |
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School/College Quiz Buzzer Circuit using 555 Timer IC Quiz is an important event in any school/College institution to test the knowledge of the participants. In order to increase the difficulty, the spontaneity of the participants is also tested in which the reaction time of the participants also matters. So, to indicate the person who is ready first to answer the question has to push the buzzer. It is also hard for a judge or… |
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Piezoelectric Transducer Circuit and Its Applications Certain crystals like Barium titanate, Quartz, Lithium tantalite, etc. have the property of producing electricity on applying a force or pressure over them under specific arrangement. Also, they can work in inverse by transforming the electrical signal applied across them into vibrations. Hence, they are used as transducers in many applications. They are called as… |
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Panic Alarm Button Circuit using 555 Timer IC A Panic Alarm Circuit is used to send an emergency signal immediately to the people in nearby location to call for help or to alert them. The possible panic situation can be any, it is not restricted to few situations. One could possibly keep the push button at a hand reachable distance or comfortable place it to carry out quick action in silence by pressing a single… |
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Smart Knock Detecting Door Lock using Arduino Security is a major concern in our day to day life, and digital locks have become an important part of these security systems. There are many types of security systems available to secure our place. Some examples are PIR based Security System, RFID based Security System, Digital Lock System, bio-matrix systems, Electronics Code lock. In this post, let us build a Secret Knock… |
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Simple Smoke Detector Alarm Circuit Smoke Detectors are very useful in detecting smoke or fire in buildings, and so are important safety parameters. In this project, we are going to build a Simple Smoke Detector Circuit without using any Microcontroller. This circuit triggers the Buzzer whenever it detects Smoke or fire nearby. This circuit mainly uses the MQ6 Smoke/Gas sensor to… |
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Playing Melodies using Arduino Tone() Function Arduino is an excellent way to simplify and speed up your microcontroller projects, thanks to its community of developers who have made almost everything look simple. There are lots of Arduino Projects out here for you to try and have fun. Some of your projects might need some sounds action to notify about something or just to impress the viewers. What if I told you… |
