Sound Activated: Sound Activated and Light Activated...
Sound Activated Electronic Switch
Adjust the sensitivity of this circuit to control a Relay that can turn on whatever is connected to the contacts of the relay. Very practical circuit for a variety of projects. Turn on a light when your dog barks, or set of a siren when an intruder makes
Sound Voice Activated Relay Switch
This mini-VOX - voice operated relay - is based on a circuit published in Silicon Chip, 9/1994, p31.
Gun Sound Effects Chip with Ambulance, Fire, Machine Gun Sounds
Easy to build Gun Sound Effects generator kits, also inludes several different sounds and tunes.
Light Activated Relay Switches
Three relay-based electronic switching circuits that switch according to light levels.
Light Activated Music Box
This circuit will play a tune when light strikes a light dependent resistor, such as when a music box lid is opened.
Sound Activated FM Transmitter
Sound turns on the transmitter, which operates in the FM radio band. A neat way to catch a thief in another room or garage. The volume of sound needed to trigger the circuit is adjustable. The two stage transmitter has good range and the circuit powers do
Train Sound Effects
Easy to build sound effect generator kits, inludes several different sounds and tunes.
Educational Robit Kit Moon Walker II
A stronger, Mecha-Medusa is a walking robot that operates with the aid of a sound sensor. Clap hands or snap fingers to command this robot to start walking on four legs. Stops automatically after a preset time. Ideal for the hobbyist or budding scientist.
Traffic Lights Kit / Circuit
The Traffic Lights circuit performs actions just like those of a real traffic light system, switching between red, amber & green.
Cellular Phone Sound Effects
Easy to build sound effect generator kits, inludes several different sounds and tunes.
0 Comments - in Sound Effects
This page links to two electronic circuits. Once circuit produces emergency siren noises (police, fire, ambulance), and the other is a chime type sound effect.
Sound Effects Generator Electronic Circuit
Extremely useful electronic circuit capable of producing a variety of cool sound effects.
Assorted Melodies Sound Chip
Easy to build sound effect generator kits, inludes several different sounds and tunes.
1 Comment - in Sound Effects
An electronic circuit that uses a 556 (Dual timer) IC to produce a two-tone train horn sound effect. Equivalent circuit using two 555 timers (single timers) is given.
Photo Sensor with Control Relay
The most popular use for this kit is to make you own night-light. It can also be used to switch just about any appliance on or off in light or darkness. Light sensitivity is adjustable over quite a range. The relay can handle up to 10 Amps at 110VAC. Oper
Simple schematic for a doorbell electronic circuit that produces a ding-dong sound when your visitors presses the door-bell button. Based on IC 8021-2.
1 Comment - in FM Transmitters
Dick Cappel's page illustrates an extremely basic small FM transmitter that rebroadcasts sounds using a 1.5 Volt battery. very simple circuit.
1 Comment - in References
Our Morse Moris code guide shows the Morse code beeps and sounds for the alphabet, which will help you read Morse Code moris code. Also features Alphabetic sounds for Moris Code.
Moon Walker II (Advanced)
A stronger, Mecha-Medusa is a walking robot that operates with the aid of a sound sensor. Clap hands or snap fingers to command this robot to start walking on four legs. Stops automatically after a preset time. Ideal for the hobbyist or budding scientist.
Moon Walker II Educational Robit Kit Advanced
A stronger, Mecha-Medusa is a walking robot that operates with the aid of a sound sensor. Clap hands or snap fingers to command this robot to start walking on four legs. Stops automatically after a preset time. Ideal for the hobbyist or budding scientist.