Sensor
circuits: sound circuits  |
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Bat Detector |
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Clap Switch
Sound operated switch using a simple transistor circuit |
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Clap Switch |
| Door alarm
door alarm, beeps when someone touches the door-handle from outside |
| Hand
clap electronic
control |
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Obstacle detection sensor Obstacle detection sensor |
| Parking
aid designed as an aid in parking the car near the garage wall when backing up, you can use this circuit in other applications like liquids level
detection, proximity devices |
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Parking sonar an ultrasonic parking sonar circuit |
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Proximity Detector
Features Ultrasonic Transducers |
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Sonarlike method detects fluid level
two piezoelectric transducers generate and listen to the ultrasonic acoustical
wave |
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Sound
operated switch, PDF
file sound operated switch, Amplifier: TL081 Comparator: TL081 or CA3140 |
| Sound sensor |
| Télémètre
ultrasons en Français |
| Ultrasonic
alarm ultrasonic alarm circuit |
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Ultrasonic Motion Detector |
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Ultrasonic parking sonar |
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Ultrasonic range
finder circuit |
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Ultrasonic range &
imager a piezoelectric transducer is used for both tramsmit & receive |
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Ultrasonic Range Meter
Ultrasonic Range Meter, the Ultrasonic Range Meter with PIC16F873,
Educypedia |
Ultrasonic
sensor This application note describes a practical sonar system, using
ultrasonic sound waves to determine the distance to
obstacles, using a Microchip PIC16F628 MCU, Echo Location, LM324, pdf file |
| Ultrasonic switch
555, CA3140 |
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Ultrasound detector 567 phase-locked loop, LM386 audio power amplifier
circuit |
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Horizontaal |
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Last updated on:
2008-06-12
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