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Top Articles

  1. Basic 8051 tutorial 5 Ian Rogers
    Serial communication in ASM and C
  2. Getting Started with Android Programming: Creating Your First App DerStrom8
    A tutorial to help you write a simple Hello World! Android application
  3. Refrigerator Timer magvitron
    A timer for turning ON/OFF the refridgerator at peak load hours (6pm to 10 pm) using 8051
  4. I'm sick of counter requests.. So here's a few Ian Rogers
    counter
  5. 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.
  6. Power Analysers: True RMS Readings Barry Atkins
    What is true RMS or why does that matter?
  7. Simple Interrupts on mid range PIC's.... Ian Rogers
    How to implement interrupts in your project.
  1. VE7IT

    Capacitor ESR Tester

    This project was conceived as a way to enhance the collection of test equipment on my test bench. I
    0/5, 0 votes
    Updated:
    Sep 13, 2011
  2. ElectroMaster

    Simple Lie Detector

    Here's a simple lie detector that can be built in a few minutes, it is mean for fun and is obviousl
    0/5, 0 votes
    Updated:
    Sep 9, 2011
  3. sheldonstv

    Simple gated oscillator

    Here is a simple gated oscillator for you to play with. It's nothing complicated build wise but
    0/5, 0 votes
    Updated:
    Sep 9, 2011
  4. ElectroMaster

    Simple Field Strength Meter

    This Field Strength Meter is simple and also quite sensitive. It uses an ordinary digital voltmeter
    0/5, 0 votes
    Updated:
    Sep 9, 2011
  5. 3lectrix

    Infrared Proximity Detector

    This proximity detector using an infrared detector (Fig. 1) can be used in various equipment like a
    0/5, 0 votes
    Updated:
    Sep 9, 2011
  6. 3lectrix

    Light Activated Switch

    The circuit is based on National Semiconductors comparator LM311 (IC1) and an LDR. The non invertin
    3/5, 3 votes
    Updated:
    Sep 4, 2011
  7. jrz126

    High Power H-Bridge

    I just built a high power H-Bridge for my inverted pendulum project and I thought I would share it.
    2/5, 1 vote
    Updated:
    Sep 3, 2011
  8. ElectroMaster

    Stun Gun

    This stun gun is powered by a 9V battery. The transformer steps up the voltage to about 1800V (but
    3/5, 1 vote
    Updated:
    Sep 3, 2011
  9. Boncuk

    LM555 for Air Cannon

    The idea is to have two monostables timers (LM555) for triggering the air cannon. Timer1 (IC1) i
    5/5, 1 vote
    Updated:
    Aug 27, 2011
  10. DesignerDan

    Simple, inexpensive vehicle immobilizer

    This vehicle immobilizer circuit is quite possibly the smallest, simplest, cheapest and easiest to
    0/5, 0 votes
    Updated:
    Aug 25, 2011
  11. ElectroMaster

    The 4017 Decade Counter

    [ATTACH=RIGHT]54828[/ATTACH]This handy Decade Counter (or sometimes called a Johnson Counter) can b
    5/5, 2 votes
    Updated:
    Jul 31, 2011
  12. carbonzit

    Simple Audio Signal Injector

    Here's a signal injector for those of us like me who don't have a bench full of nice test equipment
    4/5, 1 vote
    Updated:
    Jul 4, 2011
  13. 3lectrix

    How To: Test A Uni Junction Transistor

    You can easily test the health of a UJT (Uni junction transistor) by using a digital multimeter. Do
    0/5, 0 votes
    Updated:
    Jul 2, 2011
  14. SyPTo
    0/5, 0 votes
    Updated:
    Jun 30, 2011
  15. ElectroMaster

    Jeopardy Quiz Game

    This electronic "Jeopardy" game circuit consists of four push-button switches. When one is pressed,
    0/5, 0 votes
    Updated:
    Jun 21, 2011
  16. 3lectrix

    Digital Stop Watch

    A digital stop watch built around timer IC LM555 and 4-digit counter IC MM74C926 with multiplexed 7
    0/5, 0 votes
    Updated:
    Jun 17, 2011
  17. RODALCO

    GPO 36 master clock contact impulse debouncer

    GPO 36 master clock contact de-bouncer I decided to build this circuit after my Gents GPO 36 mas
    0/5, 0 votes
    Updated:
    Jun 16, 2011
  18. cyb0rg777

    Alarm - With Infrared Remote

    I built this circuit recently and decided to do a rough schematic and post it here.It is a car alar
    0/5, 0 votes
    Updated:
    Jun 16, 2011
  19. 3lectrix

    Digital Code Lock

    This is a simple but effective code lock circuit that has an automatic reset facility. The circuit
    0/5, 0 votes
    Updated:
    Jun 16, 2011
  20. ElectroMaster

    Computer Voltage Monitor

    This is an illustrated tutorial on building a voltage monitor for fan control circuits - rheostats,
    0/5, 0 votes
    Updated:
    Jun 16, 2011