Electronics

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Electronics Projects: How to Flash Multiple LEDs with a BASIC Stamp

This electronics project begins by connecting 6 LEDs to the breadboard in a BASIC Stamp HomeWork board and then continues by showing the programming necessary to flash all of the LEDs on and off. You can [more…]

Electronics Projects: A Simple Crystal Radio Circuit

A basic crystal radio receiver circuit consists of just a few basic electronic components: an antenna and a ground connection, a coil, a variable capacitor, a diode, and an earphone. [more…]

Electronics Projects: Materials for a Crystal Radio Circuit

A crystal radio is a good project to hone your electronics skills. You’ll need a handful of parts to build your crystal radio. The following is a recommended list: [more…]

Electronics Projects: How to Build the Coil for a Crystal Radio

When you look at a crystal radio, one of the simplest of all useful electronic circuits, the first thing you’re likely to notice is the large coil. The coil usually consists of 100 turns or more of small-gauge [more…]

Electronics Projects: How to Assemble the Crystal Radio Circuit

Before you embark on assembling the various electronic parts of a crystal radio, you will need a base and a few other parts. Here’s a list of the parts you’ll need to assemble the circuit: [more…]

Radio Electronics: Foxhole Radios

In World War II, electronically-inclined GIs would often build their own crystal radios from whatever materials they could scrounge up. These were called [more…]

Electronics Projects: How to Add an Antenna to a Crystal Radio Circuit

A good, long antenna is an electronic component vital to the successful operation of a crystal radio. In general, the longer the antenna, the better. If possible, try make your antenna at least 50′. Longer [more…]

Electronics Projects: How to Ground Your Radio Antenna

A good ground connection is every bit as important as a good antenna in do-it-yourself radio electronics. The best way to create a good ground connection is to use a metal cold water pipe. [more…]

Sources of Alternative Energy

Coming up with alternative energy sources is essential due to the energy demands of a growing population and dwindling supplies of fossil fuels. This list is an overview of available alternative sources [more…]

Electronics Schematics: Commonly Used Symbols and Labels

Simple electronic circuits can have as little as two components. Most electronic circuits will have additional components. There are hundreds of different types of electronic components, and each has its [more…]

Electronics Projects: How to Use a Servo in a Circuit

A servo is a special type of motor for use in electronics that is designed to rotate to a particular position and hold that position until told to rotate to a different position. Hobby servos are frequently [more…]

Electronics Projects: How to Create Names in PBASIC Code

When your electronics projects take you into the realm of programmable circuits, you may find yourself writing some PBASIC code. In PBASIC, you can create names to use as program labels. You can also create [more…]

Electronics Projects: How to Create Constants in PBASIC Code

If you begin to use programmable circuits in your electronics projects, you’ll end up writing some code. If your programmable circuit is a BASIC Stamp, you’ll write that code in PBASIC. [more…]

Electronics Projects: How to Assign Names to I/O Pins in PBASIC Code

Programmable circuits in electronics projects require a bit of programming. If your programmable circuit is a BASIC Stamp, you’ll write that code in PBASIC. PBASIC lets you assign a name to an I/O pin. [more…]

Electronics Projects: How to Use Variables in PBASIC Code

The BASIC Stamp 2 microprocessor has a whopping 32 bytes of RAM memory that's available for processing for your electronics project. To use RAM memory in PBASIC, you create variables. A [more…]

Electronics Projects: How to Do Math in PBASIC Code

A little programming is in order for your electronics project when you use programmable microprocessors like the BASIC Stamp. The BASIC Stamp uses Parallax BASIC [more…]

Electronics Projects: How to Use IF Statements in PBASIC Code

When you use programmable microprocessors like the BASIC Stamp in your electronics project, a little programming is in order. The BASIC Stamp uses Parallax BASIC [more…]

Electronics Projects: How to Use ENDIF and ELSE in PBASIC Code

Programming in PBASIC is a necessary evil when you use programmable microprocessors like the BASIC Stamp in your electronics projects. PBASIC lets you perform logic in your program through the use of [more…]

Electronics Projects: How to Use DO Loops in PBASIC Code

The DO loop in PBASIC can make programming of the BASIC Stamp in your electronics project a bit more compact. The DO loop is a special PBASIC statement that performs essentially the same function as a [more…]

Electronics Projects: How to Use FOR Loops in PBASIC Code

The PBASIC FOR loop will make the BASIC Stamp in your electronics project execute a loop a certain number of times. It is also a great programming tool for performing an action on multiple I/O pins. Thus [more…]

Electronics Projects: How to Connect a Push Button to a BASIC Stamp

If you want the BASIC Stamp to react to the status of an external electronic circuit, connect a pushbutton to an I/O pin. Then, you can add commands to your PBASIC program to detect whether the pushbutton [more…]

Electronics Projects: How to Check the Status of a Switch in PBASIC

Once you’ve connected a switch to a BASIC Stamp I/O pin in your electronics project, you need to know how to determine whether the switch is open or closed from a PBASIC program. The easiest way to do [more…]

Electronics Projects: How to Read a Value from a Potentiometer

A potentiometer (often called a pot) is an electronic variable resistor with a knob you can turn to vary the resistance. Pots of various types are often used as input devices for BASIC Stamp projects. [more…]

Electronics Projects: How to Program PBASIC Subroutines

PBASIC subroutines are invaluable in your electronics projects using a BASIC Stamp processor. A subroutine is a section of a program that can be called from any location in the program. When the subroutine [more…]

Electronics Projects: How to Create Sound Effects

With creative use of PBASIC commands, you can create some interesting and at times annoying sound effects in your electronics projects. The idea is to use short durations in the [more…]

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