Circuit Huntron for Oscilloscope – Lissajous figure

Teste para Osciloscópio - Circuito Huntron - Lissajous

In mathematics , the Lissajous curve also known as Lissajous figure or Bowditch curve , is the graph of a system of parametric equations which describe complex harmonic motion. Strange and complicated means these names, but it is not as simple in practice involve calculations. The practical implementation of the Lissajous figures Lissajous curves can also be generated using a ...

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Buzzer Sends Message to Phone Using Arduino

Campainha Envia Mensagem para Celular Usando Arduino

When someone rings your doorbell would not be good to know about it when you're not home? Well this project will do just that, to touch the bell you receive an SMS. Pressing the buzzer will send a message to your cell phone and send you a picture of who is there. You often hear that thieves often ...

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Audio Amplifier Using LM317

Amplificador de Áudio Usando IC LM317

You probably know that the integrated circuit is used as an LM317 adjustable voltage regulator, but by a miracle of electronics it can also be used as an audio amplifier with a maximum power of audio 1 Watt. There is actually more mysteries in electronics that between heaven and earth.(their) But this can also turn LM317 ...

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Circuit to turn LED on DC voltage / AC de 4 a 30 Was

circuito led DC AC universal

What do you think of using a direct output led in its variable source, regardless of the output voltage? It is very difficult to find a simple solution to this problem. Maybe a zener solve, or a way to regulate the voltage and current without many components not endear, as to light a single LED should not have much effort. How to connect a ...

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Phantom Load To Audio

carga fantasma para caixa de som

Phantom load is a dummy load , a device that is used to simulate an electrical load , usually for testing purposes. There are basically two types of phantom loads, a de RF, the Power and Audio, in this article we show a load circuit for audio. When you want to test an amplifier, can sometimes be ...

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Simple Design of Temperature Sensor Electronic

Sensor de Temperatura Eletrônico

This is another simple design that leverages an additional feature of a component. In case the sensor used is a 1N4148 diode Transistor BC547B or with the base and collector shorted. Have you ever seen right here on the blog a Circuit Temperature Sensor using 1N4148 diode, and also the temperature sensor LM35, but this is different because of its simplicity. Circuits ...

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