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Jonathan & Aidan
Problem/Area of Need: It is unsafe for blind people to walk unassisted because of the obstacles in their ways
Explain Your Solution: - As a group, we have designed a wearable mechanism that can help blind people gain a sense of what is around them. This mechanism will inform the user of what is in front of them through easily comprehendible means.
Flaws in tactile paving
Difficulties of commute
Isolated lives of the blind
Echolocation, using reflecting sound to locate objects nearby
Corresponding Arduino parts
Familiarizing ourselves with
We started out by
making a simple light switch
Later, we started experimenting
with the Arduino programming,
creating logic gates
Brainstorming ideas for the design of the mechanism
Although we were originally going to create it as a headband, we decided a hat would be more comfortable and professional
Programming and completing the software portion of the mechanism
Upon receiving ultrasonic sensors to use, we learned the mechanics of the sensor, and programmed them accordingly.
Pretty quickly, we programmed our final program, converting distance into beeping sounds from the buzzer
Testing the program out on ourselves and others
We tried walking around the school blindfolded, only using one ultrasonic sensor and buzzer to help guide our way
We realized that those that were familiar with the school halls tended to fare better with the device, while in other cases, the user completely lost sense of direction after running into an obstacle
This problem could be helped by getting used to the mechanism and getting comfortable with the environment
Assembling the mechanism and working on better presentation
This was perhaps the most difficult part, as with many loose wires and parts, we did not know where to start, and many of our ideas would not be professional enough.
In the end, we used Velcro to attach the battery pack to the back of the hat, and the ultrasonic sensor to the front