Useless Box with Arduino

A useless machine that flips down a switch. Turns itself off, with 15 different movement effects.

Jul 17, 2020

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21 respects

Components and supplies

1

Toggle Switch, SPDT

1

Resistor 4.75k ohm

1

1N4007 – High Voltage, High Current Rated Diode

2

SG90 Micro-servo motor

1

Arduino Nano R3

1

Plastic Enclosure, Project Box

Tools and machines

1

Drill / Driver, Cordless

Apps and platforms

1

Arduino IDE

Project description

Code

Useless Box Arduino Nano

arduino

Works with UNO too, no changes. Just select the appropriate board from the Arduino editor at upload. Is the old code you can find easily, but with some minor improvements that worked for me. Thanks a lot to the one who wrote it, this guy really knows FUN.

Useless Box Arduino Nano

arduino

Works with UNO too, no changes. Just select the appropriate board from the Arduino editor at upload. Is the old code you can find easily, but with some minor improvements that worked for me. Thanks a lot to the one who wrote it, this guy really knows FUN.

Downloadable files

Electric diagram

The electric diagram is a bit adapted to my preferences. I opted out for USB power (phone charger or power bank) instead of batteries, thru a diode to 5V pin. This prevents the servomotors to be powered when the board is plugged in to computer USB for programming, because the current draw would be too high.

Electric diagram

Arm design

The arm which flips down the switch

Arm design

Lid lever design

The lever which opens the lid

Lid lever design

Electric diagram

The electric diagram is a bit adapted to my preferences. I opted out for USB power (phone charger or power bank) instead of batteries, thru a diode to 5V pin. This prevents the servomotors to be powered when the board is plugged in to computer USB for programming, because the current draw would be too high.

Electric diagram

Arm design

The arm which flips down the switch

Arm design

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viorelracoviteanu

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