The ID Remember-er

As a student at Lane Tech high school, bringing my identification card is paramount to the safety of my institution. It is for this reason that forgetting my ID is a major inconvenience that is only rectified by the treacherous 'walk of shame' to Door M. Therefore, this project intends to help me remember to bring my ID card in the morning.

• Lane Tech ID
• Particle Argon & Breadboard
• Jumper wires
• 4 wired alligator clips
• 12V DC motor
• 1 L298N motor controller
• 2 small strips of aluminium foil
• Roughly 158 square inches of cardboard
• Roughly 20 Lego bricks
• 3 Lego wheels with their respective Lego axles
• About 17 feet of fishing line
• AMPLE amounts of painter's tape
• 2 rubber bands
• 12V power supply
• 5V power supply

In order to make the pulleys, attach the Lego wheels to groups of Lego bricks and then tape the structure wherever they are needed along the wall(s) using painter's tape. These images show both of the two pulleys used before and after they are mounted.

Encase the 12V motor within a Lego structure so that the motor stays stationary while spinning. Create a wheel out of the cardboard, being sure to bore a hole for the motor axle to fit within. The wheel can then be attached to the motor axle.

To trigger the system, a simple pressure plate is constructed by taping aluminium foil to the inside of a folding piece of cardboard. Positively and negatively charged alligator clips are then attached to the foil in order to create what is essentially a big button.

For this step, closed loops of fishing line must be ran between each pair of pulleys. Unfortunately due to the line's thinness, this step couldn't be sufficiently photographed.

Supply both the 5 and 12V power lines and the system should be ready to function.