Bicycle turn indicator lights are something that helps us to have a safe ride. But not every bicycles are equipped with these lights. In that case its our responsibility to make one to ensure safety. So here is how you…
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Battery charge indicator circuits are very useful modules for efficient use of the Li batteries. These kind of indicators generally measures the voltage in the battery and indicate the charge by turning up any appropriate LED’s. But its not necessary…
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Spy Bug circuits are something that’s used when we need to listen to conversation without being noticed or to simply put to spy on a person. Generally Spy bug circuits are constructed using a Mic, amplifier and speaker. The medium…
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Alarms are pretty handy to use in alerts, detectors, sensors etc. In such applications the loudness of the alarm can be a challenge since some most circuit you find online won’t produce audible sound. So to overcome this defect here…
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Power Supply circuits can be extremely useful when you are working on a project which requires multiple range of input voltages. Building a dedicated power supply units for each of those can be painful and tedious process. Instead you can…
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Servo motors possess the unique characteristics of turning to a specific angle ( 0,90,180) depends on the width of the pulse of the input signal. These servo motors are widely used in Robotic applications, machinery control and lots more. Usually…
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Code lockers are used for security purposes and it is of many types based on their complexity and level of security they provide. Here we are going to see building of simple code locker circuit using decade counter IC CD4017….
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