Presentation Title

Modification of a Ride-On Electric Toy Car for use by a Child with Rett Syndrome

Faculty Mentor

Jayesh Bhakta

Start Date

17-11-2018 8:30 AM

End Date

17-11-2018 10:30 AM

Location

HARBESON 37

Session

POSTER 1

Type of Presentation

Poster

Subject Area

engineering_computer_science

Abstract

Building off of the work started by the GoBabyGo program, a commercially available ride-on child's toy was adapted for a child with Rett syndrome. This involved creating a motor speed control and modifying the controls of the vehicle so that the pedal motor control was moved to the steering wheel into paddle switches to encourage the use of the hands. An Arduino was used to sense the motor speed via motor back EMF and speed control was achieved using Pulse Width Modulation (PWM). A monitoring circuit was implemented in the speed control circuit to significantly reduce the likelihood of prolonged, unintended motor operation under device failure. Further modifications were made to make the toy more interactive for the child to assist in communication and to increase engagement with the child’s environment. The design of the customized features and an evaluation of the final car is presented.

Summary of research results to be presented

The results include a schematic of a working circuit for safe motor speed control for a ride-on toy to adapt it for use by a child with a disability. The results also show a design for adapting the steering wheel of such a toy for use by a child with impaired use of hands. A method of adding controls for playing sounds is also presented. The results will also include an evaluation of the completed modified ride-on car in a clinical setting.

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Nov 17th, 8:30 AM Nov 17th, 10:30 AM

Modification of a Ride-On Electric Toy Car for use by a Child with Rett Syndrome

HARBESON 37

Building off of the work started by the GoBabyGo program, a commercially available ride-on child's toy was adapted for a child with Rett syndrome. This involved creating a motor speed control and modifying the controls of the vehicle so that the pedal motor control was moved to the steering wheel into paddle switches to encourage the use of the hands. An Arduino was used to sense the motor speed via motor back EMF and speed control was achieved using Pulse Width Modulation (PWM). A monitoring circuit was implemented in the speed control circuit to significantly reduce the likelihood of prolonged, unintended motor operation under device failure. Further modifications were made to make the toy more interactive for the child to assist in communication and to increase engagement with the child’s environment. The design of the customized features and an evaluation of the final car is presented.