Sensor
circuits: sound circuits 
related topic: Ultrasonic sensor theory |
|
Bat Detector |
|
Clap activated remote switch circuit diagram This project offers a way to
control up to four latching switches with two claps of your hand. These switches
may be used to control lights or fans – or anything else that does not produce
too loud a sound. To prevent an occasional loud sound from causing malfunction,
the circuit is normally quiescent. The first clap takes it out of standby state
and starts a scan of eight panelmounted LEDs, pdf file |
|
Clap Switch
Sound operated switch using a simple transistor circuit |
|
Clap Switch
Here’s a clap switch free from false triggering. To turn on/off any appliance,
you just have to clap twice. The cir-cuit changes its output state only when you
clap twice within the set time period. Here, you’ve to clap within 3 seconds |
|
Clap Switch
Described here is an interesting circuit of a clap operated toggle switch,
realized using readily available inexpensive components: LM555, CD4013, pdf file |
|
Clap Switch
Here is a clap switch which is used to turn ON/OFF any appliance connected to
it. The circuit changes its output state when you clap near the condensor mic,
555, 4017, pdf file |
| Door alarm
door alarm, beeps when someone touches the door-handle from outside |
|
Hand
clap activated relay During the operation of the circuit, a hand clap would
activate a SPDT reed relay while a further clap will turn OFF the relay, 555 |
|
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 |
|
Proximity Detector
Features Ultrasonic Transducers |
|
Sonarlike method detects fluid level
two piezoelectric transducers generate and listen to the ultrasonic acoustical
wave |
|
Sound
operated switch, PDF
file sound operated switch, Amplifier: TL081 Comparator: TL081 or CA3140 |
|
Sound
Operated Switch This sensitive sound operated switch can be used with a
dynamic microphone insert as above, or be used with an electret (ECM) microphone |
| Sound sensor |
| Ultrasonic
alarm ultrasonic alarm circuit, The ultrasonic detection unit
amplifies(About 1000 times) and detects the ultrasonic that a reflected wave
from the object. At the circuit this time, transmitter and receiver(Transducer)
and detector are incorporated into another printed board. The transmitter
transmits the 40 kHz ultrasonic with the 1 millisecond in the about 64
milliseconds interval |
|
Ultrasonic
Motion Detector
Ultrasonic Motion Detector |
|
UltraSonic USB Radar Microchip PIC18F4550, Ultrasonic Range Sensor |
|
Ultrasonic range
finder circuit |
|
Ultrasonic range &
imager a piezoelectric transducer is used for both tramsmit & receive |
|
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 |
|
Ultrasound detector 567 phase-locked loop, LM386 audio power amplifier
circuit |
|
VOICE CONTROL
SWITCH The voice control switch is classified as a remote control circuit
which monitors the work operation of a relay by audio generation, the sound of
which can possibly be a hand-clap, or striking of materials with a built-in
shape volume control available for the adjustment of the sensitivity as well, pdf file |
|
Whistle Switch
The whistle switch allows you to turn on, or off, an appliance by whistling at
it |
|
Horizontaal |
|
|
|
|
Home
|
Site Map
|
Email: support[at]karadimov.info
Last updated on:
2011-01-02
|
Copyright © 2011-2021 Educypedia.
http://educypedia.karadimov.info
|
| |
