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Electronics

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Prototype an Electronic Coin-toss Prep: Specs, Parts, and Tools

For this project, you create an electronic version of a coin toss. Instead of flipping a coin into the air to see if it lands heads or tails, you build an electronic device that does the coin toss. That [more…]

Prototype an Electronic Coin-toss Step 1: Connect the IC to Power

Creating an electronic version of a coin toss is a good electronics project for beginners. It doesn’t literally toss a coin. Instead, when the user removes his finger from two metal contacts, one of two [more…]

Prototype an Electronic Coin-toss Step 2: Connect LEDs to Resistors

An electronic coin toss doesn’t literally toss a coin, but it does make a good first project for the aspiring electronics hobbyist. Rather than flipping a coin, one of two lights stays lit when the user [more…]

Prototype an Electronic Coin-toss Step 3: Connect the Finger-touch Circuit

A good first project for the aspiring electronics hobbyist is an electronic coin toss. It doesn’t literally toss a coin. Instead, one of two lights stays lit when the user removes his finger from two metal [more…]

Prototype an Electronic Coin-toss Step 4: Complete the Circuit

In order to complete the electronic coin toss prototype, you will complete the circuit by connecting the power supply. Your prototype won’t literally toss a coin. Instead, one of two lights will stay lit [more…]

Troubleshoot Your Electronic Coin-toss Prototype

If the prototype of your electronic coin-toss circuit doesn't work, there are a number of troubleshooting steps you can take to find out why and correct the problem. Here are some helpful troubleshooting [more…]

Prep to Build an Electronic Coin-Toss: Parts List and PCB Layout

Once you have assembled and tested the prototype of your electronic coin-toss, you can begin to build the actual electronic coin-toss on a printed circuit board [more…]

How to Build an Electronic Coin-Toss Circuit

Building an electronic coin-toss is a good project for a beginning electronics hobbyist. Prior to building the coin-toss on a printed circuit board (PCB), it is advisable to prototype it on a solderless [more…]

How to Mount an Electronic Coin-Toss Circuit in a Box

When you have successfully built a coin-toss circuit on a printed circuit board (PCB), you’ll want to give the project a finished presentation by mounting it in a project box. [more…]

How Solder Works in Electronics

Soldering is especially useful for electronics because not only does it create a strong physical connection between metals, but it also creates an excellent conductive path for electric current to flow [more…]

How to Buy a Soldering Iron for Your Electronics Projects

Soldering is useful for electronics to create a strong physical connection between metals. A soldering iron — also called a soldering pencil — is the basic tool for soldering. [more…]

How to Buy the Right Solder for Your Electronics Projects

Soldering is used in electronics to connect metals. Solder, the soft metal that's used to create solder joints, is an alloy of tin and lead. Most solders are 60 percent tin and 40 percent lead, but that [more…]

Everything You Need to Solder Electronics

Besides a soldering iron and solder, there are a few additional things you'll need to have on hand for successful soldering of your electronics projects. To wit: [more…]

Prepare to Solder Your Electronics Project

Before you start soldering to connect the wires on your electronics project, you should first prepare your soldering iron by cleaning and tinning it. Follow these steps: [more…]

How to Solder a Solid Joint on Your Electronics Project

The most common form of soldering when creating electronic projects is soldering component leads to copper pads on the back of a printed circuit board. If you can do that, you'll have no trouble with other [more…]

How to Check the Solder Joints on Your Electronics Project

After you've completed a solder joint, you should inspect it to make sure the joint is good. Look at it under a magnifying glass, and gently wiggle the component to see if the joint is stable. A good solder [more…]

How to Desolder an Electronics Joint

Desoldering refers to the process of undoing a soldered joint. You may have to do this if you discover that a solder joint is less than satisfactory, if a component fails, or if you connect your circuit [more…]

Electronics Measurements: What is a Multimeter?

Along with a good soldering iron, a good multimeter is the most important item in your electronics toolbox. Your electronic exploits will be much more fruitful, if you learn how to use it properly. [more…]

Electronics Measurements: What a Multimeter Can Measure

A meter is a device that measures electrical quantities in your electronics projects. A multimeter, therefore, is a combination of several different types of meters all in one box. At the minimum, a multimeter [more…]

How to Build a Simple Electronic Circuit

If you are interested in understanding electronic circuits, one of the best ways to learn about electronics is to build a simple circuit. This simple circuit consists of just three components: a 9 V battery [more…]

How to Measure Current on an Electronic Circuit

Electric current is measured in amperes, but actually in most electronics work, you'll measure current in milliamps, or mA. To measure current, you must connect the two leads of the ammeter in the circuit [more…]

How to Measure Voltage on an Electronic Circuit

To measure voltage on an electronic circuit, you don't have to insert the meter into the circuit. Instead, all you have to do is touch the leads of the multimeter to any two points in the circuit. When [more…]

How to Measure Resistance on an Electronic Circuit

Resistance on your electronic circuit is measured in ohms, represented by the Greek letter Omega (Ω). Measuring resistances is similar to measuring voltages, with a key difference: [more…]

Measure Electronic Waves: Overview of the Oscilloscope

An oscilloscope displays a simple graph of an electric or electronic signal. This graph, called a trace, shows how voltage changes over time. The horizontal axis of this graph, reading from left to right [more…]

Measure Electronic Waves: Waveforms Seen on an Oscilloscope

There are four basic types of waveforms that you'll run into over and over again as you work with electronic circuits. Waveforms are the characteristic patterns that oscilloscope traces usually take. These [more…]

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