VizVest: the High Visibility Vest Using a Circuit Playground Express

Have you ever felt like going out for a walk around the block after work, but felt doubtful about feeling safe on the roads? Are you worried about visibility and if cars can see you from far? Look no further! This vest allows the user to be visible on the roads as they bike, jog or walk.

• Circuit Playground Express
• USB cable - USB A to Micro-B - 3 foot long
• Li-Poly Battery 3.7V 2500mAh OR AAA Battery with JST connector
• Adafruit NeoPixel LED Strip w/ Alligator Clips - 30 LEDs/meter - 1 Meter - BLACK
• Safety Silver Reflective Fabric Tape DIY for Clothing Sew On
• Lilypad LEDs
• Lilypad push button
• Reusable Heat Packs
• Old Jacket, preferably a bright color
• Hot Glue

You can add reflective tape around the arms and form H kind of pattern on the vest.

If you are using only reflective tape, you can form the 'Yield' sign on the vest.

Here's High Visibility Vest code in Makecode

Counter A cycles through the various light sequences.

1. Front lit in White
2. Back lit in Red
3. Slow Flash Yellow
4. Smiley Mode
5. Complimentary Colors
6. LED strip lights-rainbow animation
7. Running Wipe Sequence
8. Random Color Sequence

Counter B cycles through the sensor sequences

1. Light Sensor dependent mode: when the ambient light goes down, the vest increases the brightness. During daytime, the brightness is less.
2. Sound Sensor dependent mode: when the vehicles are going by, chances are the sound in the environment is high, and the code increases the brightness when that happens.
3. Pedometer: this maps the number of steps, and graphs on the circle of LED's. Right now 10 steps is one LED.

You can sew the Lilypad LED's on the back to indicate R/L turns.

LED's are in parallel. You can power them using coin cell batteries.

They can be turned ON/OFF at the cuff with a simple slide switch.

Yay! Once you test to make sure everything is working you now have a working Viz Vest to keep you safe while you are outside during low light hours. We hope this project benefits you. Thank you!