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Electronic Traffic Light Circuits & Light Controller

Photo: Traffic Lights Kit / Circuit Traffic Lights Kit / Circuit
The Traffic Lights circuit performs actions just like those of a real traffic light system, switching between red, amber & green.
Photo: Light Activated Music Box 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.
Photo: Photo Sensor with Control Relay 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
Photo: Stepper Motor Controller Stepper Motor Controller
Preprinted Circuit Board with all the parts to assemble a controller that allows you to change directions, vary the speed, or single step the included stepper motor. Has LED's that flash when motor steps.
Photo: Light Activated Relay Switches Light Activated Relay Switches
Three relay-based electronic switching circuits that switch according to light levels.
Photo: PIC LED Flasher PIC LED Flasher
Versatile light organ based on PIC microcontroller.
Photo: AC Motor Speed Controller AC Motor Speed Controller
This kit allows you to control the speed of an AC motor. It can provide high torque at even low speeds.
Photo: Encoded Stepper Motor Controller Encoded Stepper Motor Controller
This kit uses a Grey switch aka bit switch, to single step a unipolar stepper motor in either direction. Uses a
Photo: Audio-Light Modulator Isolator Audio-Light Modulator Isolator
Introduces the Optocoupler-triac MOC3010. Complete electrical isolation between input audio signal (low voltage circuit) and output light modulation. Operates from 100 VAC line. Audio input via 3.5mm jack.
Photo: Parallel Port Relay Board Parallel Port Relay Board
Use an old PC as a dedicated controller to turn on or off devices lab or radio shack. The circuit includes eight relays controlled with (included) software for either DOS or Windows 3.1. The kit is a boon to the Science Fair project, laboratory experiment
Photo: Light Alarm Electronic Kit Light Alarm Electronic Kit
A sensitive photo Darlington transistor is used with a CMOS nand gate. The circuit detects light and triggers a siren. You could add your own triac or relay and switch practically anything. The kit uses the MEL12 Darlington super alpha phototransistor, ty
Photo: Educational Robit Kit Moon Walker II 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.
0 Comments - in Fun and Games
Circuits that operate just like the real gameshows, where a light shows up for the first contestant to hit their answer button.
This super cool circuit behaves as a clapper-switch. You clap and the circuit turns on. Clap and it turns off. Great as a light clap switch.
Photo: Liquid Level Controller Liquid Level Controller
This circuit will allow you to control the level of a liquid. It switches a relay once the desired level is met.