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 Electronic Projects to Build, Page 5
Electronic Construction Projects:  # - B    C - D    E - G     H     I - M     N - R    S    T - Z

Last Updated on: Tuesday, April 01, 2014 04:33 AM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:
Illustrated Guide & Rules for American Robot Sumo -  Robot Sumo is a simple, but fun, pushing contest.  This guide is a complete description and walkthrough of a Sumo robot contest. It includes a variety of regulations, as well as tips and suggestions.  (project added 10/06)
Inductance meter for RF Inductors  -   needed a way to measure hand-wound RF inductors in my second lab, and since I would only be doing this occasionally, I didn't need anything fancy, and since once a friend finishes his AT90S1200-based design, I plan to make one myself, I figured I'd use this for less than a year, so I didn't want to invest....(schematic / circuit added 6/07)
Inexpensive APRS Weather Station -  There are two kits you need to get for this weather station. The first is the outdoor sensor. It costs about $80 and can be bought online from the AAG. http://www.aag.com.mxThis kit provides the sensor unit (some assembly required) and an interface that allows you to hook it up to your....(electronic project added 11/05)
Inexpensive seismometer project -  (circuit / schematic design added 6/06)

Inside the Big Trak -  Ever wonder how the Big Trak toy worked? And what about the mysterious IN button on the keypad?  (project added 10/06)
Jet, the ultra-fast line-following robot -  Learn the technical extravagance that competition leads to, as a line-following robot breaks the 100 cm/s barrier. Includes plenty of techno-babble and names of people you don't know.  (project added 10/06)

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KITT Car Scanner -  This custom mod gives your computer the personality of KITT, the computerized car from Knight Rider TV fame. It slides into a CD drive bay, and only needs a single standard power connector. The project is a light display which imitates the dot in KITT's hood....(design idea added 08/08/08)
Knight Rider Lights -  The 555 timer IC is connected for Astable Operation, the clock pulses are fed to the 4017 IC via the 10K resistor. The 4017 is a 10 stage counter, each of the outputs is connected to the appropriate LED, as some LEDs need to be on for more than one count, we use diodes to avoid a short circuit situation between outputs. The capacitor and resistor....
Laser Link Communicator -  audio transmission up to few hundred meters (added 6/06)
Lazy ISP Adaptor for Socketed AVR ISP Controllers -  The Lazy Adapter is composed of a 20 pin DIP socket, a 20 pin DIP header, and 6 pin ISP header, and a small phenolic circuit board to hold them all together. The green fiberglass PCB is a Dontronics DT104 SIMSTIC(This plug is in return for a favor.)…
LC Determination by Resonant Frequency Measurement ATtiny2313, AT90S2313 -  (circuit added 6/07)
LCD Display with Minimum Mass Wireless Coupler -  Its an adaption of the 2X 16 LCD project, by adding a fettite loop antenna, two resistors, and a capacitor. Here the display shows the output of the 10 bit scanning voltmeter with Minimum Mass Wireless Coupler.  (ATtiny2313, AT90S2313)…....
LCD Serial Terminal -  has RS-232 serial in/out, up to 20 programmable keys, Character LCD up to 2x40, 5 auxiliary inputs, 6 auxiliary outputs.   (electronic project added 2/06)
LED Flasher (nutchip) -  An easy and fun experience to get in touch with all the details of design and experimenting with Nutchips. (electronic design added 6/07)
LED Sign  -  uses two LED arrays to form a 7 X 10 matrix. It produces moving messages or animations stored in an EPROM.   (electronic project added 2/06)
Little More Serious Frequency Meter/CounterATtiny2313, AT90S2313 -  Maximum input frequency is specified to be 30 MHz in the multi-chip configuration, and in single-chip configuration, there are both 5 MHz and 10 Mhz versions operating with 10 and 20 MHz crystals, respectively. All versions have 9 1/2 digit resolution. I have  used....(schematic / circuit added 6/07)
Lock-in Milliohmmeter -  (circuit added 6/07)
Low Capacitance Scope Probe Adapter -  (schematic / circuit added 6/07)
Low cost RF for simple data link & remote control -  This section describes an experimental low power, low bandwidth data signaling system that was initially made to operate at 55 MHz (television channel 2 in the U.S.). Before operating a radio transmitter, find out what kind of transmitter operation, if any, is permitted in your l....
LTD-Low Cost Telemetering Device -  (schematic / circuit added 6/07)
Maglev Demonstrator -  (project added 05/08)
Make A Bridge Rectifier From Diodes -  Make your own single or multi phase bridge rectifier from diodes…. [REUK - Renewable Energy UK website]
Make a Potato Battery -  The basic experiment is based on the use of a potato, but many fruits and vegetables work as potential batteries! For the zinc electrode, a large galvanized nail works well. Nails with a thick, rough zinc texture are preferable to galvanized nails that are smooth....(project added 6/07)
Make a Shunt Resistor -  Make your own rough and ready shunt resistor…. [REUK - Renewable Energy UK website]
Make a Simple Battery Status Monitor -  Monitor battery status with this easy electric circuit project - no skill required!…. [REUK - Renewable Energy UK website]
Making Voltage Doublers and Multipliers -  Find out how to construct an AC voltage doubler circuit. Extend it to a tripler circuit and more….. [REUK - Renewable Energy UK website]
Make your own light bulb -  Theodore Gray, co-founder of Wolfram Research, Inc makers of Mathematica, wrote up an amazing article on making your own light bulb. The project is quick and simple, but a little pricey…(project added 6/07)
Make your own multimeter -  The most important and expensive component in a meter is the movement: the actual needle-and-scale mechanism whose task it is to translate an electrical current into mechanical displacement where it may be visually interpreted. The ideal meter movement is physically large (for ease of viewing) and as sensitive as possible (requires minimal current to produce full-scale deflection of the needle....(project added 6/07)
Make Your Own Stripboard -  Stripboard has a matrix of small holes - spaced 0.1 inches (2.54 mm) apart. And - on one side of the board - the holes are joined together in rows - by narrow strips of copper. If you can make a printed circuit board - you can make a section of stripboard.... [instructions by Ron J.]
MAX038 Function/Sweep Generator with Markers ATtiny2313, AT90S1200A -  (schematic / circuit added 6/07)
Microscopic Views of a Printed Circuit Board -  Photographs of homemade circuit boards under 10x, 60x, and 200x magnification using the Intel QX3+ microscope. Shows details of pixel aliasing, copper cracks, poor resist transfer, and soiling from sticky flux paste.  (project added 10/06)
Mike Video Digitizer Construction Project -  (circuit / schematic design added 6/06)
Miniature High-Rate Speed Control with Brake -  Many designs for high-rate speed controls have been published. Most require two 8-pin integrated circuits ( ICs) or one 14-pin IC. Many designs suitable for home construction are fairly large (some as large as 2" square). Many do not include a brake....(electronic construction project added 09/06)
MiniLOGGER V1.0 -  Build your own a personal data logger for recording analog signal. The MiniLOGGER provides 8-channel analog input(-99mV to +999mV),....(electronic circuit added 05/06/07)
Minimum Mass Waveform Capture & Display -  The result was a project that includes a waveform capture circuit, a graphic LCD (Liquid Crystal Display) and a control panel with LED indicators. The details of the Graphic LCD display unit, composed of the LCD module, a serial interface, and bias supply were published earlier on this site,....(schematic / circuit added 6/07)
Minimum Mass Wireless Data Coupler  -  Bidirectional RF communications works like very short range (10 to 15 cm) radio but is as easy as IR….(electronic design added 6/07)
Mini-Sumo Robot Ring -  A mini-Sumo ring is small, lightweight, and can be transported in a car. Having your own personal ring gives your robots the advantage of plenty of practice and experimentation. It's easy to build a competition-quality ring when you know the tricks.  (project added 10/06)
MK-484 Receiver Chip Evaluation Board for AM & Lowfer bands. -  The basic MK484 (Replacement for the ZN414) connected in its minimum configuration as a radio receiver for the A.M. Broadcast band and the upper half of the United States' FCC Part 15 Lowfer (1600-1750 meter) band....(schematic / circuit added 6/07)
Modernized Drake FS-4 Synthesizer for the Drake R-4 & SPR-4 series receivers -  The "Hagtronics Drake Crystal Eliminator" (Featured in QST)  (electronic Construction Project added 09/06)
Morse Code Alarm Clock Modification -  (Almost) Trivial application of an AT90S2313 or ATtiny2313 in an alarm clock to change the alarm from "BEEP BEEP BEEP BEEP BEEP BEEP BEEP BEEP...." to "WAKE UP" in Morse code.  This was designed in response to a request and is in daily use…....

Electronic Construction Projects:  # - B    C - D    E - G     H     I - M     N - R    S    T - Z


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