touchmysound
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Touch Me! Multi-Purpose Oscillators with Mobile Capacitors

555 timers used as oscillators. Frequency is decided by different capacitors which can be inserted in the circuits on the fly.

IntermediateFull instructions provided20 hours368

Things used in this project

Hardware components

DC Power Supply 4.5V - 5V (must be double-isolated for safety)
×1
Alligator Clips
Alligator Clips
×4
AA Batteries
AA Batteries
×2
Capacitor 47 µF
Capacitor 47 µF
×3
Ceramic Disc Capacitor, 0.1 µF
Ceramic Disc Capacitor, 0.1 µF
×3
Capacitor 10 µF
Capacitor 10 µF
×3
Capacitor 10 nF
Capacitor 10 nF
×3
555 Timers
555 Timers
×3
Phone Audio Connector, Jack
Phone Audio Connector, Jack
×3
3 mm LED: Yellow
3 mm LED: Yellow
×1
3 mm LED: Green
3 mm LED: Green
×1
Opto-Isolator
Opto-Isolator
×3
Rotary Potentiometer, 50 kohm
Rotary Potentiometer, 50 kohm
×5
Resistor 100 ohm
Resistor 100 ohm
×1
Resistor 220 ohm
Resistor 220 ohm
×1
Resistor 100k ohm
Resistor 100k ohm
×2
Resistor 1k ohm
Resistor 1k ohm
×1
Through Hole Resistor, 270 ohm
Through Hole Resistor, 270 ohm
×3
Through Hole Resistor, 1 Mohm
Through Hole Resistor, 1 Mohm
×1
Through Hole Resistor, 6.8 kohm
Through Hole Resistor, 6.8 kohm
×1
Resistor 10k ohm
Resistor 10k ohm
×1
Toggle Switch, Toggle
Toggle Switch, Toggle
×2
Package of diverse ceramic capacitors
×1
Perf+ 2
Crowd Supply Perf+ 2
×1
2AA Battery Holder for RTC
UDOO 2AA Battery Holder for RTC
×1
Jumper wires (generic)
Jumper wires (generic)
×1
Two-pole electric cable (for audio connections)
×1

Hand tools and fabrication machines

Soldering Station, Hobbyist
Soldering Station, Hobbyist
Hot glue gun (generic)
Hot glue gun (generic)

Story

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Schematics

Touch me - Circuit - Fritzing file

Three 555 timers are used in astable mode to create oscillators. For each circuit, one capacitor is disconnected and can be inserted on-the-fly for producing different pitches.

Touch me - Circuit - Pdf file

Three 555 timers are used in astable mode to create oscillators. For each circuit, one capacitor is disconnected and can be inserted on-the-fly for producing different pitches.

Credits

touchmysound

touchmysound

2 projects • 23 followers
Alessandro Perini's artistic production ranges from audiovisual and light-based works to net-art, land-art and vibration-based works.

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