Electronic Circuits and electronic circuits, electronic schematics plus an extensive resource for hobbyists, inventors and engineers

DiscoverCircuits.com has links to 45,000+ electronic circuits, cross-referenced
into 500+ categories.    We have searched the web to help you find quick design ideas.

HOME Schematics Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches
Welcome to DiscoverCircuits.com - online since 2002

See Media Kit for
Advertising Opportunities

Attention Designers:  Please alert us by eMail if we have linked to sites
where your original material has been copied without your permission.
We will change to the LINK to your site.  
Thank you.

 


Microprocessor Circuits
Microprocessors:  #'s - B      C - F      G - K      L - M      N - P      Q - S      T - Z

 

Last Updated: October 24, 2017 02:55 PM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Combination Lock -  Combination lock are nice to enable alarms, but are useful for controlling a wide range of electric devices.  These software keys can open gates, garages, TV sets, telephones, VCRs, well pumps  __ Designed by Projects & Ideas from Nutchip.com

Combination Lock -  The Circuit Board is Designed to accept 2 types of Drive transistors.  I Used a 2N3906 in this schematic, but for Higher Current Drive for a Solenoid, You can use Various T0-220 PNP types of transistors.  USE ONLY ONE OR THE OTHER, NOT BOTH.  __ Designed by G.L. Chemelec

Combination lock -  Operate your gate or something different by this simple electronic combination lock.  The combination can have a chosen length of numbers or alphabets, and can be changed any time.  The LCD display is optional, the circuit works fine without it.  After entering the correct combination, a relay is operated for the predefined time __ Designed by Peter Jakab

Combination Locks -  This circuit uses 4013 D-type bi-stable flip-flops  (D stands for data) .  Each flip-flop has a data input and a clock input.  The voltage applied to the input is transferred to the Q output at the instant when the clock input goes from 0 to 1.   (We say these flip-flops are "edge-triggered".) Switches 1, 2, 3 and 4 are the switches which form the code and any number of "wrong" switches can be connected, in parallel, at the point shown.   __ Designed by © David Hoult

Combination Lock -  a digital lock with keypad - enter the correct code to operate a solenoid.  Based around ua3731 __ Contact: P. Townshend - EduTek Ltd

Combination Lock2 -  a digital lock with switches.  A nifty circuit i'm chuffed with, based around just 2 logic ics! __ Contact: P. Townshend - EduTek Ltd

Come in Spinner -  No, its not our version of Two-Up! Instead, you spin it and it writes messages in thin air.__ SiliconChip

Communication of TRW-24G RF Modules with AT90S2313 microcontroller -  Communicate 2 TRW-24G RF modules  (2.4GHz) with AVR micro-controller.  This is more an example assembly code and not an integrated electronic circuit.   __ Designed by © Vassilis Serasidis

Compact 0-80A Automotive Ammeter -  The latest adddition to our line-up of PIC-based automotice projects.  Build it and keep tabs on your car's electrical system.__ SiliconChip

Compact Bluetooth enabled Geiger Counter -  A Geiger counter you can bring anywhere, and interface with on your Android device.

Compact Fluorescent Lamp Driver -  Operates from a 12V DC supply and can drive up to four 9W CFLs at full brightness.  Use it as part of a solar power installation or anywhere you require good lighting without mains power.__ SiliconChip

compact L-match ATU for Portable use -  amateur radio construction projects.   __ Designed by Peter Parker

Comparison macro for PIC processors -  03/02/00 EDN-Design Ideas - If you ever get tired of trying to remember the subtleties of the "carry" status bit every time you want to use the subtract instruction to perform a comparison, the macro in Listing 1 can help.  The macro contains all of the nuances, once and forever.  The macro reads like a sentence: branch to target if ram-register is [comparison condition] a literal value.   __ Circuit Design by Dennis Nagal

Complete High Speed, High CMRR Precision Analog Front End for Process Control  -  The FFT plots were generated using the standard ADC LabVIEW evaluation software tools available from ADI__ Analog Devices from the Lab

Component video to RGB converter -  Does your TV have RGB instead of component video inputs? This project lets you get the best possible pictures from your DVD player.__ SiliconChip

Concurrent processing produces fast priority selector -  04/13/00 EDN-Design Ideas - Priority-encoding circuits are common in high-speed digital applications, such as interrupt controllers and task schedulers, for selecting the highest priority set bit of all set bits in a given binary vector.  Typically, the bit  __ Circuit Design by Itamar Elhanany

Connect a Serial LCD Display to Raspberry Pi -  Here we connect my serial LCD display circuit to the Raspberry Pi.  This saves the use of GPIO pins for other uses.  The routines are as follows: __ Designed by Lewis Loflin

Connect  RS232 Modem to E-10G -  Here is the instructions to build a cable adaptor  to  connect your pocket PC with any external  RS232  modem.  The Pocket PC must have serial  port __ Designed by © Vassilis Serasidis

Connecting a Globe using a PIC16c510 -  Scroll to find this circuit #8 -A globe is a device that requires a very high start-up current.  This is something you may not be aware of.  The start-up or warm-up current for a globe is about 6 times its operating current and although this current is drawn for only a very short period of time, it is one of the reasons why a globe does not work in some circuits.  The high start-up current prevented one of our flip-flop circuits working.  The resistance of the leads from the project to the battery was sufficient to prevent the circuit starting-up.  That's why it is important to remember everything we discuss.   __ Contact: Colin Mitchell

Connecting a Servo to a PICAXE -  The three simple routines below go further than the PICAXE manual.  The programs are self explanatory. __ Designed by Lewis Loflin

Connecting AT90S2313 with LCD display 2x16 char & 4x4 keypA - D -  Connect some 2x16 characters LCD display and 4x4 keypad with AVR microcontroller __ Designed by © Vassilis Serasidis

Connecting LED to PIC Micro I/O Pins -  So, you’ve got a great idea for a project using a PICmicro microcontroller and you want to use at least one LED in your project as a power indicator.  Or, maybe, you’ve set out to design a bar-graph voltmeter with eight LEDs, __ Sirus MicroSystems

Connecting Minilogger with Easy-Server V0.9 -  Run Easy-Server V0.9 on PC connected to internet gateway enabling remote access the MiniLOGGER.   __ Designed by Wichit Sirichote

Connecting Nokia 3310 LCD to USB using AVR. Part 1. Schematic -  What do you do with an old phone, a microcontroller and lots of time? You hook the old phone's LCD screen to the computer USB of course! In this project we're going to communicate with a Nokia 3310 LCD display over USB! How are we going to do that?

   <<<         >>>

Microprocessors:  #'s - B      C - F      G - K      L - M      N - P      Q - S      T - Z

 


Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches



 About Us   |  Advertise on DiscoverCircuits.com   |   Report Broken Links  |    Link to DiscoverCircuits.com  |   
Privacy Policy


Discovercircuits.com endeavors to credit original designers.   Please alert us by eMail so we can
delete links to material that have been copied without your permission
.   Thank you.


© Copyright of all original material on this website is the property
of David A. Johnson, P.E. (Dave Johnson & Associates ) unless otherwise noted.  

Linking is ALLOWED but COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED.
All material is provided "as is" without guarantees or warranty of any kind, either expressed or implied.