Prototype


CAD Model


Central Disk – part of mobile that holds and supports the rotating disk, device supports and Arduino.

Pipe Holder – holds the PVC pipe supports in place and allows for attachment to central disk as well as 90 degree adjustment to fit crib.

Clip – attaches entire device to crib to maintain structural stability.

Below are images of the parts on the printer bed prior to 3D printing


Arduino Models



Rotating Servo Motor

This part of the ArduinoUNO uses a High Sensitivity Sound Sensor to detect cries from a baby, times the length that the baby cries, and after a certain amount of time turns on the motor to rotate the mobile. Pictured below is the pin model for this model.

This pin model was created using TinkerCAD. Note that TinkerCAD does not have a figure for the sound sensor, so instead an IR sensor was used to take its place. The left pin is the analog pin, the middle the ground, and the right the power pin.

Pictured below is the code used to rotate the servo motor in response to sound.

Included below is a video of how it works!

Twinkling Lights

This part of the ArduinoUNO uses a High Sensitivity Sound Sensor to detect cries from a baby, times the length that the baby cries, and after a certain amount of time turns on white and blue twinkling lights. Pictured below is the pin model for the sounds responsive twinkling lights.

This pin model was rendered using TinkerCAD. Note that the program didn’t have a microphone sensor, so a temperature sensor was used to represent this. The left pin is the analog pin, the middle the ground, and the right the power pin.

Pictured below is the code used to turn on twinkling lights in response to sound.

Included below is a video of how it works!

Sources

Below we have listed the videos and websites that helped us make our mobile.

Multiple Blinking LED Arduino UNO


Final Prototype

Below is a video of the prototype spinning the toys with a clap

Below is a video of the prototype spinning the toys with a baby’s cry