Intro

Halloween is coming! My team member Iris and I are looking for others to collaborate on our ideas. Yuri suggested "Pump-kin!" which involves an interactive ultrasonic sensor. Additionally, our team has created a magic wand that includes a gyro sensor. Isn't it awesome? Like a pumpkin hat with a magic wand! Therefore, we have two ideas!

About the concept behind the idea

• Sketches or images, including scale, a scenario of how someone would interact with it and ㅗhow to structure an interface.

1. Pump-kin 👯

   • Dimension : 30 x 30 x 20 cm

   "Pump-Kin" is a party hat that includes an ultrasonic sensor. On a typical day, the ultrasonic sensor faces the ground, which means it cannot detect anything. However, when you go to awesome places like a fancy party, you simply turn down the sensor part, and the sensor receives values and lights up.

   

   Pic from Yuri~

2. Accio (Awesome magic wand for magician 🪄)

   • Dimension : 9 x 9 x 28 cm

   "Accio" is a spell in the Harry Potter series. Typically, this spell summons objects. Therefore, my teammates and I are envisioning a magic wand that can display interactive objects on the screen. (In fact, we are considering projection mapping with fancy objects!)

   

   Also from Yuri as well~

   I've brought a few images for imagination~ When you shake this wand~

   

   You can see this small object changing

   

   like this!

   

   Just plannning now~

Describing input and output

1. Pump-kin 👯

   Ultrasonic sensors emit short bursts of high-frequency sound pulses at regular intervals. These sound pulses propagate through the air, and if they encounter an object, they are reflected back to the sensor as echo signals. This information is used to calculate the distance to the target by measuring the time it takes for the echoes to travel. So, our team is planning to create party glasses that operate an ultrasonic sensor by adjusting the angle.

   • Normally, the ultrasonic sensor is attached to the frame of the glasses(It faces ground) and is not used for object detection.
   • When you want to enjoy the party, you adjust the ultrasonic sensor to face forward.
   • The ultrasonic sensor continuously detects objects in real-time and sends the detected values to an Arduino.
   • The Arduino processes these values and converts them into values that can be used to control Neopixels.
   • The Neopixels illuminate accordingly.

2. Accio (Awesome magic wand for magician 🪄)

   Gyro sensor has an axis that remains constant during rotation, allowing it to measure the orientation or tilt of an object.

   A gyro sensor is often referred to as an 'angular velocity sensor' because it measures the angular velocity, which is the rate of rotation of an object. It does this by converting the <Coriolis force> generated during rotational motion into an electrical signal, which can then be used for calculations. The Coriolis force is a force that is proportional to the velocity of a moving object and is perpendicular to its direction of motion.

   Therefore, our team plans to create an artwork that responds to specific values using an Arduino that includes an accelerometer sensor.

   • We elevate the disguised gyro sensor with a magic wand.
   • The gyro sensor inside the magic wand detects movement.
   • Based on the detected position (x, y, z), interactions occur in the artwork.
   • Changes occur in the artwork(projection mapping) based on the values read by the gyro sensor.

Technology