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Infrared Circuits   Page 3
IR Circuits:   #-H          I         J-R        S-Z
Last Updated on: Monday, August 18, 2008 04:18 PM
 
Circuits Designed by Dave Johnson, P.E. :
  • MICRO POWER 40KHz BURST LASER DIODE DRIVER
    Some laser tag or simulated combat games can use this circuit to send short bursts of modulated laser light at the opponent's vest, equipped with a matching light receiver. The circuit operates from three 1.5v cells (4.5v) that should provide enough energy for about 200,000 shots.
  • OPTICAL RFID TEST CIRCUIT
    I designed this test the concept of using light techniques to send identification data instead of RF. A more detailed discussion on this scheme can be found in the Imagineered new products section.
  • Pigeon Scarecrow
    I have an area on my roof where a large flock of pigeons like to roost.  Their nesting materials and droppings really make a mess. Often there is enough junk from them that it clogs my roof gutters.  Perhaps one way to scare them away is with a device mounted on the roof near their favorite roosting spot.  The device....
  • Reflected Infrared Light Switch
    Infrared light reflected off a finger is used to activate this switch circuit.  Drawing only 30uA from a 3v supply, this circuit will detect a human finger with a range of about 1 inch.  The sensor uses an inexpensive infrared LED and a matching photo diode.  (added 7/06)

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

Linux Infrared Remote Control (LIRC):  (design circuit added 8/02)

Micro Based PIR to IR Remote Converter:  (electronic circuit added 7/03)

Minimizing SUN's Noise in IR Reception:  (electronic schematic / circuit added 4/02)

Optical output for Creative Infra CD-ROM:  Little circuit to connect your MD or DAT to your CD-ROM drive with standard optical S/PDIF cable, based on TOTX173... (circuit design added 11/06)

PC Infrared Remote Control #1:  (circuit added 7/02)

PC IR Remote Control Hardware:  (electronic circuit added 4/05)

PIC16c505 IR/Wireless Remote Control:  (circuit / schematic design added 6/06)

Pyroelectric Infrared Sensor:  (design circuit added 8/02)

RD68HC908IRC : MC68HC908QT2 Based Simple Infrared Remote Control Reference Design:  Motorola has developed a simple, single dedicated device, infrared remote control designed to control a DVD player. This reference design demonstrates how to time and create modulated infrared signals used to control six basic functions of the DVD player.  (app note added 3/05)

Remote Control for Sony a /  Volt Equipment:  PIC based remote controller for Infrared and wired Control-S bus (added 4/02)

Robot with PIC16F84 Brain and InfraRed eyes:  (circuit / schematic design added 6/06)

IR Circuits:   #-H          I         J-R        S-Z

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