Preparing Electronics for Tactile Model

Michael Broderick
Aug 23, 2017 · 2 min read

I have designed a model to test wall heights for the tactile model. It also includes raised bumps, to test how different tactile elements feel.

Model to be 3D printed

While the tactile model is printing, I have been preparing and experimenting with Arduino.

The first experiment was to create a method whereby user know where the model is physically situated. An experiment was set up using an ultrasonic sensor to detect if someone enters a certain range of the model. An buzzer was used as a simple representation of the audio feedback. It can be seen in the video below.

The second experiment was an extension of the light sensor. A drawback of using photo-resisters is that they are receive analog inputs. This means that it will be difficult to accurately determine if someone has placed their hand over it. A solution to this is to introduce a potentiometer, which allows for resistance to be fine tuned. This can be adjusted so that the sensor is better suited to the conditions and the user inputs, which can therefore provide a digital output. This can be seen in the video below.

I have also been trying to set up multiple photo-resisters. This is a more challenging task and more experiments will take place next week.

CoDe Graduation Project — Michael Broderick

Responsive audio and tactile wayfinding methods for the vision impaired

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Michael Broderick

Written by

CoDe Graduation Project — Michael Broderick

Responsive audio and tactile wayfinding methods for the vision impaired

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