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seperate Techville2001 webpage for:
Remote Control Circuits


Some Interesting Circuits


Glolab TM1 RM1 - RF Communication Modules
Transmittersand Receivers operate at 418 MHz
(require no license under FCC Part 15)
datarates up to 4,800 bps



IR-related ASCII Schematics V1.00
includes a segment about how to
Build an Infrared night scope



LED Flashlight



Electronic Insect Repeller



7x10 Moving LED Sign



Voltage Comparator Switch
indication signal whenever the
input voltage differs from two defined limits



555 monostable based
push-to-make Press Button Switch (PBS)
PBS Switch Debouncer




IR Motion Detectors

How Infrared Motion Detector Components Work

Micropower Wireless Motion Detector




Metal Detectors


Metal Detector 1



Metal Detector 2




Some Sources for Circuits


Assorted ASCII Schematics V1.00
including:
Adjustable flashing LED
big LED scrolling display
Frequency and Capacitance meter
lots of Oscillator circuits
op amp phase shifter
video amplifier
High Voltage (12KVolts) Power Supply
Peltier coolers/heaters
'Nixie' display tubes
how to build a laser



electronicsforu Circuit Lab




This webpage was last updated on March 14, 2001

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