Wednesday, February 13, 2019

Monday, February 4, 2019

Project 01 Proposal

Project 01 Proposal:

Let's Get Handsee!

Handsee is intended for individuals with visual impairments who wish to improve their mobility. This model will use a TFMini infrared proximity sensor ($40) programmed through an Adafruit Trinket ($9), or an ATTINY45 ($2), to trigger a vibration motor ($2) when an object is within a certain distance of the user's fingertips. The vibration motor will mimic the rythm of a radar beep and it will all be powered by a 5v cell phone battery. Having this system on each hand will allow the user to navigate an area using their hands to avoid obstacles or reach destinations. My next step in the production process is determining what equipment will work best for my needs. This proposal is similar to a previous project of mine that I feel could have been improved with a more appropriate sensor, like a motion sensor, but because I didn't expand my research I used an ultrasonic sensor instead. I anticipate that calibrating the IR proximity sensors for this project will be the most challenging part. By using capacitors and resistors, I hope to improve the accuracy of the sensor up to 5ft. The total cost of the project is estimated to be at $92-102.