Project showcase
Peron/Peroff Useless Machine

Peron/Peroff Useless Machine © CC BY

Another metaphoric machine that does nothing—absolutely nothing—except switching itself off.

  • 3,238 views
  • 1 comment
  • 4 respects

Components and supplies

Apps and online services

About this project

Useless machine, a device with a function but no direct purpose, started by the italian artist Bruno Munari in the 1930s.

This version was mounted over an old Cigar box with Arduino Nano, a strong Mg996 servo motor, a 3d printed arm, DFPlayer mini, microSD, 4ohm 3 watts Speaker, a resistor and a switch.

Art, philosophical point, sad metaphor, simple joke. All valid options.

Code

There is not much code to explain. Just switch detection, servo movement and mp3 playback.

int butValue = digitalRead(switchPin);

if (butValue==0){

Serial.println("Machine is on");

// Play mp3

if (isPlaying==1){
// continue
play();
}
else
{
// first time playback
execute_CMD(0x0F,0x01,0x02);
isPlaying=1;
}

// Wait
delay(3000);

Serial.println("Move arm");
servoMotor.write(180);
delay(1000);

Serial.println("Return arm");
servoMotor.write(0);

// pause mp3
pause();

delay(2000);

}

Video

Peron peroff

Comments

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