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”Save for a rainy day,” as the saying goes. But that doesn’t mean saving money has to be boring and analog.

Bring your coin box into the 21st century with this awesome DIY Arduino-powered solution.

Before you begin building this amazing device, you are going to need a few materials.

- Arduino Nano
- MG90S servo motors
- Cardboard circles (1.4-inch/35 mm by 1.4-inch/35 mm)
- Small cardboard box or cardboard
- Hot glue gun
- Battery holder
- Electrical wires, resistors, and soldering gear.
- Arduino Nano code

The first step is to wire up the servo motor to the Arduino Nano. Watch the video for more details on this. “

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