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  • 17/02/2018

    Finally found a buzzer that works on DC current! I am not an electronics expert in any way, shape or form so I have spent a bit of money in the past on buzzers that I wanted to use on projects, only to realize that I needed a 5 Volt AC current to run them. Making a DC to AC converter is beyond my capabilities and, in any case, I couldn't find a circuit diagram for one. This buzzer is active, so it has its own built-in converter and will work beautifully from a 5V DC power supply or battery, with no extra electronics required. To say that it has changed my life might be a bit of an exaggeration but it has certainly made things a lot easier. I now have alarms all over the house!

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  • 29/07/2017

    Бузеры рабочие. Все как в описании. Провел небольшой тест, измерил приложением в телефоне уровень громкости, одной и двух пищалок. Вывод две пищалки соединенные в параллель не дают в два раза больше громкости.

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  • 15/01/2018

    Required when you don't want to lose your quad. Betaflight also gives you multiple options about when the buzzer has to beep. It is loud enough, and having 5 is good to have some spares.

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  • 03/08/2017

    Не знаю пока как работают, рекомендовали как отличный вариант, думаю не подведут, пришли быстро.

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  • 01/04/2017

    Ces buzzers sont minuscules : ~9mm de hauteur pour ~11mm de diamètre. Et pourtant le son qu'ils produisent est très fort et clair (quand on n'oublie pas de retirer le papier autocollant protecteur...)

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  • 21/01/2019

    Cheap and easy to install. The longer pin is the positive. The buzzer is not self-powered (will not work if the battery is unplugged in a crash), and not very loud. But does the job in most cases. I used a pair of spare-wires (cut off the ESCs) to plug the buzzer on the FC. Attached it with a zip tie and some piece of foam tape on the frame.

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  • 10/10/2017

    Batch of 5 small buzzers with continous beep. They are 2 wires only, so they need to be connected to drivers that manage the power to the device. Connected to racers with F3 flight controller can be used both to give low battery warning or to be used to locate the quad in case of crash in high grass or other hidden places.

    Comments
  • 23/08/2016

    Small, light and annoyingly loud active buzzer. Working voltage is from 3V to 5V - checked. With those is now a much easier to search my fallen quads in tall grass. Received package had 5 items. I attached some pictures with on of them.

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  • 27/05/2018

    Finaly found a buzzer that works on DC current. I am not an electronics expert in any way, shape or form so I have spent a bit of money in the past on buzzers that I wanted to use on projects, only to realize that I needed a 5 Volt AC current to run them. Making a DC to AC converter is beyond my capabilities and, in any case, I couldn't find a circuit diagram for one. This buzzer is active, so it has its own built-in converter and will work beautifully from a 5V DC power supply or battery, with no extra electronics required. To say that it has changed my life might be a bit of an exaggeration but it has certainly made things a lot easier. I now have alarms all over the house!

    Comments
  • 26/08/2017

    They are beepers and they do the "beep" :-). The beep is loud, and I wanted to use them for the drone. But later found the smaller and lighter ones on BG, so for the small drones they will be better. These beepers works on 5V and the longer pin is a +5V (positive) input, the shorter one is for - or ground. All 5 are working good.

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