Tuesday, January 31, 2012

  • Universal remote control receiver

    Monday, January 30, 2012

  • A robot for beginners

    Sunday, January 29, 2012

  • A proximity detector

    Saturday, January 28, 2012

  • A detector of magnetic fields

    Friday, January 27, 2012

  • A variable speed DC motor

    Thursday, January 26, 2012

  • A detector of cell phones

    Most visited posts this week

    • An LED board
      This LED board displays a maximum of 46 characters scrolling speed is easily adjustable using buttons. It operates independently and all ope...
    • A flashing LED "flash"
      Figure 1: Diagram of the circuit flash LED and components list. I had a high brightness LEDs, such as the one you use in assembling EN...
    • A digital voice faker
      This device is a generator based on the voice audio chip from Holtek HT8950, when talking into the microphone, the voice from the loudspeake...
    • A micro-receiver UHF control tape
      This description provides a powerful micro-receiver, adapted to listen for transmissions on 433.75 MHz at a distance. It allows the activati...
    • Transmitter Receiver 27 MHz amplitude modulation
      I) Presentation : The problem of signal transmission by audio frequency electromagnetic wave led in recent years of practical arrangem...