Gadget for Visually Impaired People #AssistiveTechnology @hackadayio @hackaday
Via Hackaday/Hackadayio, Syed Razwanul Haque Nabil has designed an assistive technology device – the Gadget for Visually Impaired People (GVIP). It has the ability to detect objects horizontally in front of people, much like a cane or pole is used by the visually impaired to navigate through a physical space.
This project is based on a Time of Flight sensor. Visually impaired people generally use a cane outdoors but indoors a cane is not convenient specially to detect a obstacle just in front or horizontally. This project is not the direct replacement of a cane, rather it will help blind people to detect object in front of them. The laser sensor is much faster than a sonar sensor so its response time is faster. In this project, when a obstacle is detected, a vibration motor begins vibrating by which visually impaired people can understand a obstacle has been detected. A small lithium ion battery is in this device and the user can charge it using any micro usb cable or mobile charger. Power consumption of this device is very low.
The project uses an Adafruit VL53L0X – Time of Flight Sensor. The main advantages are speed of calculation (it relies on a single shot to compute the distances within a scene) and an efficient distance algorithm that simplifies the measurement of distance data. In contrast to stereo vision, which requires complex correlation algorithms, the process for extracting information for a time-of-flight sensor is entirely direct, requiring a small amount of processing power.
Adafruit has had paid day off for voting for our team for years, if you need help getting that going for your organization, let us know – we can share how and why we did this as well as the good results. Here are some resources for voting by mail, voting in person, and some NY resources for our NY based teams as well. If there are additional resources to add, please let us know – adafruit.com/vote
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.