In this video I've created a device that can notify in real time about events that happen on a website. The project uses NodeMCU board and a buzzer to produce sound as alert. The board is programmed ...

✈ Learn to build airplanes like this with the basic online course. ★ To download the plans and see more videos, images and information about this project. (*Create an account to be able to see the ...

Sound! It’s a thing you hear, moreso than something you see with your eyes. And yet, it is possible to visualize sound with ...