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Electronic Circuits

A collection of electronic circuits and projects you can build. Created by our very own members.

Top Articles

  1. Refrigerator Timer magvitron
    A timer for turning ON/OFF the refridgerator at peak load hours (6pm to 10 pm) using 8051
  2. I'm sick of counter requests.. So here's a few Ian Rogers
    counter
  3. LM317 Adjustable 20V, 1.5A Supply with Simple SMPS Tracking Preregulator crutschow
    LM317 supply with switching tracking prereg for good efficiency and minimal heat sink requirements.
  4. Power Analysers: True RMS Readings Barry Atkins
    What is true RMS or why does that matter?
  5. Alcohol detector and engine cut off. magvitron
    in order to start the car you have to blow to the sensor having a flowsensor (can be madeform a hea
  6. "The Scavenger" A Joule Thief inspired Boost regulator. ()blivion
    Presented here is a significant step forward in simple, cheep, and efficient boost converter design
  7. Monitor I2C Communications through RS232 languer
    In the past when requiring to monitor I2C communications between two devices I
  1. Articles are being shown from all child categories.
  2. magvitron

    Refrigerator Timer

    A timer for turning ON/OFF the refridgerator at peak load hours (6pm to 10 pm) using 8051
    4.5/5, 2 votes
    Updated:
    Sep 29, 2013
  3. alec_t

    PWM pulse generator

    This is the base design (not a full working drawing with pin-numbering etc) for a simple PWM pulse
    0/5, 0 votes
    Updated:
    Sep 3, 2013
  4. magvitron

    Alcohol detector and engine cut off.

    in order to start the car you have to blow to the sensor having a flowsensor (can be madeform a hea
    5/5, 1 vote
    Updated:
    Jun 29, 2013
  5. ()blivion

    "The Scavenger" A Joule Thief inspired Boost regulator.

    Presented here is a significant step forward in simple, cheep, and efficient boost converter design
    5/5, 1 vote
    Updated:
    Jun 19, 2013
  6. ElectroMaster

    Fan Control Circuit (LM317)

    This is an illustrated tutorial on building a variable voltage control for fans and other units, ba
    5/5, 1 vote
    Updated:
    May 19, 2013
  7. jakeselectronics

    Binary to 7 Segment Decoder

    This circuit displays the Hexadecimal equivalent of a 4 bit Binary Number. The number is displayed
    4.5/5, 2 votes
    Updated:
    Apr 25, 2013
  8. languer

    Simple Serial LCD

    Creating a serial LCD can be very useful for quick debugging; as well as projects requiring LCD sup
    4/5, 1 vote
    Updated:
    Apr 8, 2013
  9. richard.c

    PH Amplifier

    There are many micro circuits for aquarium temperature controllers - one of the more desirable fea
    4.5/5, 2 votes
    Updated:
    Mar 25, 2013
  10. alec_t

    Brushless DC Motor Speed Controller

    A simple, cheap, BLDC motor controller using readily-available components is described. Most previ
    5/5, 2 votes
    Updated:
    Feb 14, 2013
  11. languer

    Monitor I2C Communications through RS232

    In the past when requiring to monitor I2C communications between two devices I
    5/5, 1 vote
    Updated:
    Feb 10, 2013
  12. rajbex

    Adding thermometer feature to an inexpensive digital multimeter

    Digital multi-meters are found dirt cheap on Ebay. For less than five bucks, you can buy a multi-fu
    5/5, 1 vote
    Updated:
    Jan 28, 2013
  13. magvitron

    matlab code for detecting and following a red ball.

    the code is self explanatory [CODE]clear; clc % Clearing Matlab desktop vid=videoinput('winvide
    0/5, 0 votes
    Updated:
    Jan 25, 2013
  14. magvitron

    avr based frequency meter with full code and design file

    its a frequency meter. designed using atmega 8 (avr studio and avr gcc) proteus file : [ATTACH]
    0/5, 0 votes
    Updated:
    Jan 25, 2013
  15. magvitron

    Automatic Street Lighting System

    The driving theme behind the Automatic Street Lighting System is an energy-saving streetlight schem
    5/5, 1 vote
    Updated:
    Jan 24, 2013
  16. 3v0

    Scaling Numbers or how avoid floating point.

    Part I: The voltage divider. Because eight bit mircocontrollers lack floating point instruction
    5/5, 2 votes
    Updated:
    Jan 19, 2013
  17. ()blivion

    Easy DIY "Wiimote" Light bar

    [B]*DISCLAIMER* THIS PROJECT WORKED 100% FOR ME, I HOPE IT WORKS FOR YOU TOO. BUT I CAN NOT SUPERVI
    0/5, 0 votes
    Updated:
    Jan 17, 2013
  18. DerStrom8

    The Secret Knock Detector Project

    [B]Introduction and Overview[/B] The Secret Knock Detector project is a variation of Steve
    5/5, 1 vote
    Updated:
    Jan 17, 2013
  19. alec_t

    Skinflint's Anti-static Wrist-strap

    When working on static-sensitive circuits, e.g. involving CMOS ICs, it is advisable first to discha
    5/5, 1 vote
    Updated:
    Jan 17, 2013
  20. alec_t

    Simple PWM control

    Here's a simple PWM control circuit using inexpensive readily-available components. [ATTACH=CONFI
    0/5, 0 votes
    Updated:
    Apr 24, 2015
  21. alec_t

    The versatile CD4093B Schmitt NAND IC

    Schmitt logic gates such as in the CD4093 quad NAND gate IC are useful buiding blocks for various f
    0/5, 0 votes
    Updated:
    Jan 17, 2013