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2 Line Intercom Plus a Telephone Changeover Switch: The circuit presented here can be used for connecting two telephones in
parallel and also as a2-line intercom. FAIR WARNING -- THIS SITE HAS ANNOYING POP UP ADS. (Electronic circuit added 5/02) |
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2 Wire
Remote Microphone Amplifier : (Electronic circuit added 7/03) |
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300 MHz
AM RF Remote Control System: (Electronic Schematic / circuit added 4/02) |
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35KHz
Magnetic-Radiation Remote-Control: (Electronic circuit added 4/05) |
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A Serial Infrared Remote Controller: (Electronic circuit added 4/05) |
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AC-power monitor uses remote sensing: 04/26/01 EDN-Design Ideas / (Circuit / schematic design added 6/06) |
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AN-1262: Four-Speed
Fan Control using Simple Remote Diode Temperature Sensor: National Semiconductor - Application Note (Circuit / schematic design added 6/06) |
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AN-146: FM Remote
Speaker System: National Semiconductor - Application Note (added 2/06) |
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AN531: Intelligent Remote Positioner: Microchip Application Note - Published 26-Aug-97 (added 2/06) |
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AN728: Remote Keyless Entry and Convenience Center Reference Design with LIN Bus Interface: Microchip Application Note -
Published 26-Sep-02 (Circuit / schematic design added 6/06) |
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AN796: TC7109 Records Remote Data Automatic ally: Microchip Application Note - Published 12-Nov-02 (Circuit /
schematic design added 6/06) |
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Battery operated remote temperature sensor Drives 4 to 20 mA Current loop: 12/17/04 EDN Design Ideas / (added 1/05) You can remotely measure temperature using a 4-
to 20-mA current loop as long as 4000 feet and a battery-powered, white-light LED driver. You usually configure this equipment to provide a programmable, constant current to an LED from a
battery source. The TPS62300 series of ICs, for example, converts a battery voltage of 2.... |
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Building an
RF Remote Control System: (Electronic circuit added 4/05) |
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Camera remote Control system using Basic Stamp: (Electronic circuit added 4/05) |
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Celsius to digital thermometer Works with remote sensor: 04/15/04 EDN Design Ideas / (added 1/05) You can use a single-supply system to precisely measure the
temperature at a remote location with less than 1°C error over a 0 to 100°C range (Figure 1). The circuit includes T1, a low-cost AD590 temperature sensor; IC1, an AD8541 rail-to-rail
amplifier; four resistors; a trimming potentiometer; and an ADC.... |
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Child's Lamp: (Electronic Circuit / Schematic added 10/04) |
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Clap Switch: (Electronic Circuit / Schematic added 10/04) |
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Combination Controlled Fully Customizable RF Remote Control: (Circuit / schematic design added 6/06) |
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Computerized Infrared Remote: control your stereo, TV and VCR from Windows, includes schematic and software (Electronic circuit added 5/02) |
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Creating Remote Controller Waveform using PPG: Toshiba 870X Series Application Note (added 2/06) |
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Decoding Infrared Remote Controls: (Electronic Schematic / circuit added 4/02) |
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DS18B20-PAR/DS18S20-PAR/DS1822-PAR Advantages for Remote Temperature Sensing: App Note 203: Maxim IC (Circuit / schematic design added 6/06) |
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Fire
Stick infrared Remote Control: (added 8/03) |
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FM Remote Speaker
System: National Semiconductor - Application Note (added 2/06) |
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FM RF Remote
Control (88-108 MHz): 1KM Range (Circuit / schematic design added 6/06) |
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Four
Channel RF remote Control: (Electronic circuit added 4/05) |
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Four way remote
control uses series transmission: 01/18/01 EDN - Design Ideas / (addes 08/05) A simultaneous four-way remote-control system adheres to size, cost, and reduced-complexity
constraints and uses a series transmission to drive parallel loads (Figure 1). You can use this system as long as the time constant of the load is much larger than the total transmission time
for all data. With these considerations, this design can drive any object with four simultaneous controls as motors. |
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Four-Speed Fan
Control using Simple Remote Diode Temperature Sensor: National Semiconductor - Application Note (Circuit / schematic design added 6/06) |
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How to
Build a 300MHz AM RF Remote Control System: (Electronic circuit added 4/05) |