Led: Rope Light

Versatile light organ based on PIC microcontroller.

The Traffic Lights circuit performs actions just like those of a real traffic light system, switching between red, amber & green.

Circuit diagram for an ultra low-noise driver/supply circuit for white LEDs, using the IC LTC3201. Ensures a stable brightness in white LED driven items.

A circuit with 8 LEDs that flash in a somewhat random fashion (well it's not actually at random, but it does visually appear that way).

The circuit flashes five LED's in sequence repeatedly until you turn it off. Flash rate is user adjustable. The circuit uses an IC chip on Board which you will then mount on the included mother board; battery holder is included. Powered by a 3 volt supply

Flashes five very bright LED's in any one of seven, user-selectable, patterns. A COB (chip-on-board) IC makes assembly very easy; the chip is supplied premounted on its own board and a motherboard contains the entire circuit. Operates on 3 volts DC, batte

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

This circuit will play a tune when light strikes a light dependent resistor, such as when a music box lid is opened.

Electronic circuit schematic that works as a Hangman LED game. Fun game to play with a friend, and very educational and entertaining circuit to build.

Three relay-based electronic switching circuits that switch according to light levels.

Schematic for an electronic circuit that behaves as an electronic version of a Roulette wheel. Flashed 10 LEDs in sequence with slowing pace until only 1 remains illuminated.

Schematic for an electronic audio level VU meter that uses LED's to display the volume/audio levels.

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.

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

This kit includes a 30W soldering iron and diagonal cutters. It is recommended as the starter kit to improve soldering skills. You will build a flashing European siren. Comes complete with speaker and light emitting diodes.

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.

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.

A simple circuit that flashes an LED when a cell phone has an incoming call. Uses a coil to pick-up the signal emitted during an incoming call event. Cell phone call detector.