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Arduino Learn about Arduino and make various interesting projects using Arduino Basic Electronics Learn about Basic Electronics and various electronic components and their working Showing posts with label BasicElectronics. To view an infrared LEDs, turn it dataaheet with the appropriate battery and dropper resistor and view it with a camera.

M74HC00B1 Datasheet – Logic Gate from

You will see the illumination on the screen. Infrared LEDs are sometimes clear and sometimes black. They operate just like a red LED with the same characteristic voltage-drop of about 1. Sometimes an infrared LED is pulsed with a high current for a very short period of time but the thing to remember is the wattage-dissipation of a 5mm LED is about 70mW. This means the constant-current should be no more than 40mA. These are given the term Tx for transmitting.

An infrared LED can be connected to a 5v supply via a R current-limiting resistor for 15mA current. They detect Infrared illumination and must be connected the correct way in a circuit. They have a very high resistance when no receiving IR illumination and the resistance decreases as the illumination increases. This means they are connected to a 5v supply via a resistor and when the resistance of the infrared receiver decreases, current will flow thought it and the resistor.

This will produce a voltage across the resistor and this voltage is fed to the rest of the circuit. Here is a circuit to show how to connect an infrared LED and Infrared diode receiver: Figure below shows what is often referred to as an integrated circuit IC. The chip in the photograph has four pins in each row; others may have many more. Figure shows a size comparison between a pin DIP package and a pin surface-mount package.

Many surface-mount chips are even smaller than the one shown. Just about every chip has a part number printed on it. In Figurethe part number is KA It can be soldered without special tools.

The small-outline integrated circuit SOIC surface-mount chip. Surface-mount chips are designed primarily for automated assembly and are difficult to work with manually. In this photo, the yellow lines are 1 inch apart to give you an idea of the scale. Take a look at Figurewhich shows how to interpret a typical part number in a 74xx family member.

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The initial letters identify the manufacturer which you can ignore, as it really makes no difference for our purposes. Time to establish a clear idea of how sound is transformed into electricity and back into sound again.

Suppose someone bangs a gong with a stick.

The flat metal face of the gong vibrates in and out, creating sound waves. A sound wave is a peak of higher air pressure, followed by a trough of lower air pressure. The wavelength of the sound is the distance usually ranging from meters to millimeters between one peak of pressure and the next peak. The frequency of the sound is the number of waves per second, usually catasheet pressed as hertz.


Suppose we put a very sensitive little membrane of thin plastic in the path of the pressure waves. The plastic will flutter in response to the waves, like a leaf fluttering in the wind. This configuration is like a tiny, m74hx00b1 loudspeaker, except that instead of electricity producing sound, it is configured so that sound produces electricity.

Sound pressure waves make the membrane move to and fro along the axis of the magnet, and the magnetic field creates a fluctuating voltage in the wire.

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This is known as a moving-coil microphone. There are other datashet to build a microphone, but this is the configuration that is easiest to understand.

Of course, the voltage that it generates is very small, but we can amplify it using a transistor, or a series of transistors. Then we can feed the output through the coil around the neck of a loudspeaker, and the loudspeaker will recreate the pressure waves in the air.

Loudspeakers utilize the fact that if you run a varying electrical current through a coil situated in a magnetic field, the coil will move in response to the current. This idea was introduced in by Datasheeet Siemens, a prolific German inventor.

Today, Siemens AG is one of the largest electronics companies in the world. From that point on, sound-reproduction devices gradually increased in quality and power, until Chester Rice and Edward Kellogg at General Electric published a paper in establishing basic principles that are still used in loudspeaker design today. As sound amplifiers became more powerful, speaker efficiency became less important compared with quality reproduction and low manufacturing costs.

Rishabh Sharma BasicElectronicsdatasheet. Best Android apps for Dxtasheet and Electrical Engineers. Electrodroid ElectroDroid is a simple and powerful collection of electronics tools and references.

Download Electrodroid free 2. Everycircuit EveryCircuit is not just an eye candy. Under the hood it packs custom-built simulation engine optimized for interactive mobile use, serious mm74hc00b1 methods, and realistic device models. In short, Ohm’s law, Kirchhoff’s current and voltage laws, datasheef semiconductor device equations, and all the good stuff is there. Growing library of components gives you freedom to design any analog or m74hd00b1 circuit from a simple voltage divider to transistor-level masterpiece.

Schematic editor features automatic wire routing, and minimalistic user interface. No nonsense, less tapping, more productivity. This is an amazingly useful and handy app for every engineering student. It provides all the concepts of engineering and formulae and can m74hc00g1 help in length mathematical calculations. Download Engineering handbook lite free. But they both EveryCircuit and DroidTesla differ in user interface and features provided. Download Droid tesla Free. Almost all those tools are available in ElectroDroid app too, except for a Power Triangle calculator.

I have listed this app here as it is free and I have spent some time to download and test this app in my Galaxy and you guys can try out, if you have time. More than 10, users have tried this application.

Download Electronics toolkit Free. This app is free version of the Datasheet website Alldatasheet. I dont recommend you to download this app as your purpose will be served dqtasheet visiting Alldatasheet. Download AllDataSheet app Free. Mm74hc00b1 Simulator is a powerful tool for simulating logic circuits and testing how different gates can be used in a circuit.


To connect nodes you simply click on an output and then click on an input to connect it to. Download Logic simulator Free. Download Electronics calculator Free. A Relay is an electromagnetic device which is used to isolate two circuits electrically and connects them magnetically.

It is basically used in intrerfacing electronic circuit to an electric circuit. A Relay consist of two parts 1. Output Input consist of a coil which gets energized when a voltage with appropriate magnitude is applied to it this voltage is known as Operating voltage. Soldering on a perfboard. Carefully note the position of a component on your bread- board, and then move it to the same relative position on the perfboard, poking its wires through the little holes.

If the joint is thin, the wire can break free from the solder as it cools. Even a microscopic crack is sufficient to stop the circuit from working. You may find this undetectable unless you observe it with magnification. You can add more solder to any joint that may have insufficient solder, but be sure to reheat the joint thoroughly. A diode is a very early type of semiconductor. It allows electricity to flow in one direction, but blocks it in the opposite direction.

A light-emitting diode is a much more recent invention.


Like an LED, a diode can be damaged by revers- ing the voltage and applying excessive power, but most diodes generally have a much greater tolerance for this than LEDs. The end of the diode that blocks positive voltage is always marked, usually with a circular band, while the other end remains unmarked.

Diodes are especially useful in logic circuits, and can also convert alternating current AC into direct current DC. Signal diodes are available for various different voltages and wattages. Like any semiconductor, they can overheat and burn out if they are subjected to mistreatment.

The schematic symbol for a diode has only one significant variant: DC current does not flow through a capacitor, but voltage can accumulate very quickly inside it, and remains after the power supply is disconnected.

Figures below may help to give you an idea of what happens inside a capacitor when it is fully charged. When you see a curved line, that side of the capacitor should be more negative than the other. Flip the switch back, and it connects the center terminal with the other outer terminal, as shown in Figure below: Potentiometers come in various shapes and sizes, but they all do the same thing: Most potentiometers are held together with little metal tabs. You should be able to grab hold of the tabs with your wire cutters or pliers, and bend them up and outward.