Tag · 3 circuits

#halloween

halloween circuits ready to build, each with a parts list, a schematic and a picture showing how to connect it. Want to change something? Make your own copy in one click.

Newest circuits

Step-Triggered Sound Player

This project creates a step-activated trigger that plays a sound for example when someone steps on your door mat. The sound is stored on an SD card in MP3…

8 parts by Oyvind Nydal Dahl #fsr #halloween #sound
Candle-Flicker LED Strip

This project uses a flickering LED (one of those that you only need to connect to power and it will flicker light a flame). By using a resistor and an…

5 parts by Oyvind Nydal Dahl #halloween #transistor-circuit #mosfet
Mini Monster Box

This is my mini monster box: Knock on the box, and a grumpy little monster pops out to see who's there. A microphone hears the knock, a one-transistor…

8 parts by Oyvind Nydal Dahl #halloween #monster #amplifier

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#halloween

Newest circuits

Step-Triggered Sound Player

Candle-Flicker LED Strip

Mini Monster Box

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