Cpx Face Shield

Our team created a device using a circuit playground express that will serve as a face shield for the user to protect against viruses. With button activated lights and lifting capabilities this device is sure to provide safety and protection to the user.

For this project you will need

Adafruit Circuit Playground Express (CPX) CircuitPlaygroundExpress

USB to micro B cable UsbToMircoBCable (apple user’s will need USB type c to micro B cable)

Lithium Ion Battery - 3.7V 2000mAh LithiumIonBattery

Makerbot PLA + 3d printer

a laptop/computer

Velcro strap (1 inch width) (Supplied by makerspace) or 24-x-1-inch-cinch-straps-with-eyelet-5-pack

Clear sheet of plastic

3 alligator clips

A hot glue gun

Tape

pliers/tweezers

MU editor (coding software)

If you do not already have this, follow the instructions provided in this link to help you get started. InstallCircuitPython

Connect CPX to your computer as seen in the photo below using the USB connector

The alligator clip that attaches to the orange wire of the servo, you must attach to the circle labeled A2 on the CPX

The alligator clip that attaches to the brown wire of the servo must attach to GND

The alligator clip that attaches to the red wire must be clipped to Vout

Copy the code below then open your Mu editor. Once open, paste code onto your Mu editor

Once the code is copied to your Mu editor, press the save button seen below. In the picture the location of the save button is circled.

Follow the link below and print it to your 3d case. When printing, make sure to request supports otherwise the objects will not print properly.

Once the file is printed, because of the breakaway supports you will need to take pliers or tweezers to remove the support materials. 

Once the excess material is removed, attach the CPX holder by sliding the velcro strap through the ports on the sides of the CPX holder as seen in the picture below

Readjust the velcro strap to fit comfortably around your forehead to ensure the CPX face shield will be secure on your head.

Next, attach the servo to the spot on the top of the 3d printed case and add hot glue to completely secure the device. The servo should be able to fit perfectly into the case.

Place the battery into the case followed by the CPX on top. Connect the battery to the black port to the left.

Attach the plastic film sheet to the side of the long 3d printed object. The sheet should be attached the same way as the picture with the majority of the plastic sheet hanging in the opposite direction of the little piece that sticks up on the band.

Attach the small partextension of the 3d printed visor band piece to the servo motor by taping it to the white arm as seen in the photo or by adding in a small screw.

To use, place the device on your head with the plastic part covering your face. To raise the shield, press button A, to lower the shield, Press button B.