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Infrared Circuits   Page 1
IR Circuits:   #'s         A - B        C - H          I         J - M          N - R        S - U       V-Z

Last Updated on: Friday, October 03, 2014 10:37 AM
 

Circuits Designed by Dave Johnson, P.E. :
  • 20MHz VCSEL 3mW LASER TEST CIRCUIT
    This circuit takes advantage of some new vertical cavity surface emitting lasers (VCSEL) that don’t require light output control circuits. The circuit shows how to drive the device from a single high speed CMOS IC. The circuit can easily be modified to transmit signals from kilohertz to about 50MHz.
  • 40KHZ LED TEST SIGNAL GENERATOR
    This 40KHz crystal controlled oscillator circuit drives an infrared LED with powerful 40ma pulses.  The circuit can be used to test optical communications circuits, designed to receive 40KHz modulated light signals.
  • 40KHz TV-VCR LIGHT SOURCE REPEATER
    This circuit is designed to be placed directly in front of a standard TV or VCR remote. The exiting light pulses produced by the circuit match the pulses from the remote but are about 10 times more powerful. Using the device, the remote can operate a TV or VCR over three times the normal distance.


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

µC Provides Wireless Keypad Control -  10/08/98 EDN-Design Ideas.....Portable systems, such as telephone handsets, make extensive use of low-dropout (LDO]regulators. se components provide noise-sensitive parts with a stable power-supply line.....Scroll to find this specific article..... [Design Idea by Lloyd Khuc, Motorola Inc, Austin, TX]
2 Way IR Term -  This unit provide 2 way IR communications using a numeric keypad and an LCD display.  Data is sent and recieved in ASCII with no regard to what the data means to any particular device.
…..... [Luhan Monat - Mesa Arizona]
20MHz VCSEL 3mW Laser Test Circuit -  This circuit takes advantage of some new vertical cavity surface emitting lasers (VCSEL) that don’t require light output control circuits...... [Designed by David A. Johnson]
3 Channel IR Remote Control -  This project is a 3-channel IR remote control with 3 output relay and easy to build. Features: CPU PIC12F629 at 4MHz crystal for Tx/Rx, 3 channel output relay, The Tx use sleep mode for saving battery power,….(electronic schematic added 11/08)
4 & 8 Infrared-Proximity Detectors (TSOP4830) -  In this circuit the TSOP4830 is used as a sensitive infrared detector that does not require shielding from room lighting. The detector will work under almost any lighting condition from complete darkness to full sunlight….scroll down for this one…. [from Rob Paisley's Model Train web site]
4 channel infrared remote relays -  ….
40kHz IR Tester -  Use this circuit to test if the light coming from your 40khz IR emitter is really emitting the right frequency. The schematic says to use a GP1U5X ir module, but probably any 40khz detector module will work.… [Andy Wilson's site]
40kHz LED Test Signal Generator -  This 40KHz crystal controlled oscillator circuit drives an infrared LED with powerful 40ma pulses.  The circuit can be used to test optical communications circuits, designed to receive 40KHz modulated light signals..... [Designed by David A. Johnson]
40kHz TV-VCR Light Source Repeater -  This circuit is designed to be placed directly in front of a standard TV or VCR remote. The exiting light pulses produced by the circuit match the pulses from the remote but are about 10 times more powerful. Using the device, the remote can operate a TV or VCR over three times the normal distance..... [Designed by David A. Johnson]
555 Based IR Proximity Detector -  Sometimes you want a simple solution to a problem and you don't mind if your main controller has to do the work.  This IRPD requires the main robot processor to choose which side to look at, and.....(added 05/06/07)
555 Based IR Proximity Detector -  Several robotic projects on the page, please scroll to find this one. [Dennis Clark's website]
555 Timer 40kHz Infrared Oscillator -  (electronic circuit added 9/03)
8 channel IR remote control -  This IR remote control that you can use to control other devices or circuits up to 8 devices. The control codes are sent in RC5 format modulated to about 38 kHz carrier frequency.The IR transmitter powered by the CR2016 which is a 3V button Cells Battery CR2016. To extend the life of the battery this is done by putting the CPU into SLEEP mode for most of the time and wake-up only when a key is pressed. ….(electronic schematic added 11/08)

IR Circuits:   #'s         A - B        C - H          I         J - M          N - R        S - U       V-Z


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