Obstacle Detecting Glasses for the Visually Impaired

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on March 02, 2023

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Week 1: Testing One Sensor

The first week: We commenced work on the project after compiling all of the necessary information and determining the components that were needed. Therefore, we have set some goals for our first week which is to: Program the Arduino to receive data from a single ultrasonic sensor and calculate the distance. Begin testing a basic circuit of distance measuring. This is to better our understanding of ultrasonic sensors and how they operate. Install the sensor and Arduino Nano to the test frame that was 3D printed A plastic frame as shown in figure 1 was designed using Fusion360 prior to the start of the week to be printed. Figure 1. 3D design of our initial frame The circuit design from figure 2 consists of an ultrasonic sensor, 2 speakers, and an Arduino Nano. The ultrasonic sensor would measure the time it takes for a transmitted ultrasonic frequency to be received again. Then, it would relay the data to the Arduino where the program computes the dist...

Week 4: Second Glasses with LIDAR Sensor

Following the completion of the ultrasonic sensor glasses in week 3, we set our goals for week 4: Make a second pair of glasses but replace the center ultrasonic sensor with a LIDAR sensor. Adjust the Arduino code accordingly to operate with both the LIDAR sensor and two ultrasonic sensors. Solder the Arduino board with the sensors and install them on a second frame. The LIDAR sensor was implemented because it possesses a much greater range than ultrasonic and narrower field of view making it much better at detecting obstacles further away. The second frame shown in figure 1 was designed using Fusion360 similarly to the first frame Figure 1. 3D design of the second frame with a center LIDAR sensor holder This week's accomplishments: After various testing, we finally got the sensors to work on a breadboard. Afterwards, we began soldering the Arduino and the sensors together and successfully installed them on the 3D printed frame . Figure 2. Obstacle Detecting Glasses with a ...

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