5 Sound effect generator circuit with PCB

Simple sound effect generator circuit using IC-555 and IC-4017

If we want to be a producer, This circuit would be a good starting point to composed music for 1000 tracks.  With these Sound effect generator circuits may help you. Using basic parts and cheap makes you easy to build or try it. There are five circuits. You may make the animal sound by electronics … Read more

Cheap frequency meter circuit using 555 and CA3140

Simple Frequency meter circuit using CA3140 555

The electronics are still used to use a frequency generator circuit beuause It is important. And are used a lot in electronic circuits, both sine, square wave and more. In every time related to the frequency. What that we want to know is how much frequency.For laboratory common standards. We have many tools available to … Read more

Infrared Intruder Alarm circuit diagram

This is an Infrared Intruder Alarm circuit that interesting. Imagine some people walk through restricted areas. At that moment, this circuit immediately sounded to alert you. It uses the principle of cut the infrared light. The circuit will recognize, control relay runs, and turns on a warning signal like a siren for us to hear. … Read more

Learn audio transmission with light

light-to-sound-wave-receiver-using-ic-741

Believe it or not. We can send the audio with light. Today was fun for friends to play with their children, Learn about the equipment or use a transducer system. The change of light energy. Into electrical energy. And the change of electrical energy into sound. Change from light to sound. Light that we see. … Read more