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Circuitbuilding and Resistor Color Codes

Resistors are common passive electronic parts (meaning they don't need power to run) for circuitbuilding. Resistors control currents and voltages and they're manufactured in a variety of ways. Use this [more…]

Circuitbuilding Do-It-Yourself For Dummies Cheat Sheet

If you want to try your hand at building circuits or other electronics, make sure you keep the right tools on hand, know how to read resistor color codes and the value markings for capacitors, and understand [more…]

Expansion Connections and Pinouts for Building Robots

If you’re building a robot, you’re making lots of electrical connections, so you’re dealing with lots of pins. The following table shows the signal for expansion connectors and pin numbers. It can help [more…]

Common Screw Drill Sizes Used in Building Robots

The following table shows the tap drill and clearance drill bit sizes to use with various screw sizes that are commonly used in robot building. Keeping this information handy can save you some while you [more…]

PBasic Programming References for Building Robots

If you’re interested in building robots, you’re going to be working with PBasic, the language used to write code for microprocessors. The following lists tell you how to use PBasic to help program various [more…]

Robot Building For Dummies Cheat Sheet

Building your own robot takes some mechanical skills — you need to be able to wield a drill, pliers, and screwdriver. Youll also need some technical skills, like knowledge of PBasic so that you can program [more…]

Nexus One Touch Screen Operations

There are several basic actions you can perform on your Nexus One’s touch screen that carry out various day-to-day operations. It’s just a matter of teaching your fingers to do what you want. [more…]

Nexus One Tricks to Remember

Here is an assortment of handy time-saving tricks to keep in mind to boost your productivity (or your hopeless addiction to your new Nexus One phone). [more…]

Nexus One Help and Support

If you ever happen to find yourself in really serious phone trouble, here is a smattering of trusted places to check out first for help.

Google Support

(888) 48NEXUS, which is [more…]

The Nexus One Soft Buttons

The Nexus One phone features four soft buttons, found below the touch screen. These are the most commonly used buttons on the Nexus One phone. [more…]

The Nexus One Home Screens

The main screen you use on the Nexus One is called the Home screen, but not everything you have loaded on your phone can be displayed in just one screen. [more…]

Nexus One For Dummies Cheat Sheet

So you got yourself a new phone. Use this handy Cheat Sheet to get acquainted with the soft menu buttons and learn the layout of the Nexus One’s various home screens. The Cheat Sheet also provides a host [more…]

Create Nano-Sized Features on Computer Chips Using Nanolithography

The semiconductor industry has been in the nanotechnology business for years. They use tools and processes to etch nano-sized patterns on silicon wafers coated with a material called photoresist. Those [more…]

Soldering 101

The page you are looking for was recently moved. Don't worry, it's still here; it just has a new address: http://www.dummies.com/how-to/content/what-is-soldering-and-how-do-you-use-solder-tools.html [more…]

Electronics Safety Rules

Safety first! Electronics is a potentially dangerous hobby. Any circuit that works with 120 VAC power from an electrical outlet is especially dangerous and could potentially kill you. Here are some safety [more…]

Electronic Resistor Color Codes

Resistor values are marked with small colored stripes. The first two stripes represent numeric values and the third stripe is a multiplier. The fourth stripe gives you the resistor’s tolerance — that is [more…]

Ohm’s Law in Electronics

Sometimes in electronics you have no alternative but to whip out your calculator and do a little math. The most likely reason for doing this is to calculate how much resistance you need for a given situation [more…]

555 and 556 Timer Integrated Circuit Pinouts

The 555 is one of the most popular integrated circuits ever made. When you use it, you’ll need to be aware of the purpose of each of the eight pins in the 555 package. You may also occasionally use a 556 [more…]

LM741 Op-amp Integrated Circuit Pinouts

Operational amplifiers are one of the most common types of integrated circuits. The LM741 is a popular single op-amp IC, so you should understand the purpose of each of the pins in this integrated circuit [more…]

Electronics All-in-One For Dummies Cheat Sheet

As you design and build with electronic circuits, you will invariably find yourself scratching your head trying to remember what color strips are on a 470 resistor or what pin on a 555 Timer IC is the [more…]

Electronics Safety Lesson: Guard against Static Discharge

If you touch a sensitive electronic component such as a transistor or an integrated circuit when your body is carrying static electricity, the discharge can be more than annoying; it can fry the innards [more…]

What Can You Do with Electronics?

The amazing thing about electronics is that it's being used today to do things that weren't even imaginable just a few years ago. Here’s very brief overview of some of the basic things you can do with [more…]

Look inside Electronic Devices

Have you ever taken apart an electronic device that no longer works, like an old clock radio or VHS tape player, just to see what it looks like on the inside? [more…]

Set Up Your Electronics Lab

You can build a fancy electronics workbench in your garage or in a spare room, but if you don't have that much space, you can set up an ad-hoc electronics lab just about anywhere. All you need is a place [more…]

Equip Your Electronics Lab

Like any hobby, electronics has its own special tools and supplies. You don't need to run out and buy everything all at once, but here are some of the essentials you'll need at your disposal. [more…]


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