Category Archives: buzzer

Game On with these Open Source Arduino Buzzers

Planning a game of Hacker Jeopardy at your next meetup? You’re going to want some proper buzzers to complete the experience, but why buy when you can build? [Flute Systems] has released an open source DIY game buzzer system based on the Arduino that will help instantly elevate your game. …read more

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Posted in Arduino Hacks, arduino pro mini, buzzer, Games, nRF24L01+, PowerBoost, quiz buzzer | Leave a comment

Duck And Cover With This WiFi “Geiger Counter”

There’s perhaps no sound more recognizable than the frantic clicking of a Geiger counter. Not because this is some post-apocalyptic world in which everyone is personally acquainted with the operation of said devices, but because it’s such a common effect used in many movies, TV shows, and video games. If …read more

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Posted in buzzer, ESP8266, geiger counter, Microcontrollers, received signal strength indicator, RSSI, wireless hacks | Leave a comment

The Quest For High Powered Blinky And Buzzing

Sometimes, we need devices to notify us of something. The oven timer is going off. Your phone has a push notification. The smoke detector battery is getting low. All of these problems can be solved with a buzzer or an LED. It’s a simple and cheap problem to solve.

But what if you need to know if something’s wrong with a diesel engine that throwing out 90 dB of noise? What if you’re not guaranteed to be around that engine? What if you need to tell everyone within a half mile that something is wrong. Again, LEDs and beepers, but …read more

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Posted in buzzer, l293, led, The Hackaday Prize | Leave a comment