Design and implementation of a solar powered navigation technology for the visually impaired

The Blind Navigation System using Arduino and 1sheeld is a system that intends to enhance blind peoples' access to the environment, particularly in Ghana, Africa. This research aimed at designing a safe navigation system to allow seamless transitions for visually impaired people from one location to another, as well as a tool to assist them in communicating with their surroundings and guardians when in a difficult situation. The design uses PVC pipe as the cane, 1Sheeld, Arduino Uno, ultrasonic and water sensors for processing and monitoring, a buzzer and vibration motor to offer an alarm system via vibration and sound, housed within a circuit box and the handle, and finally powered by a portable mini solar panel with a rechargeable battery. The phone of the blind is connected to the 1sheeld board via Bluetooth link and the 1sheeld App is installed on the mobile phone. The guardian receives a call or an SMS with the GPS coordinates, which can be tracked when the blind person is lost through Google Map. The simulations related to the design's overall purpose were precise, and the trial findings from volunteers obtained from the final test were encouraging and ensured the safety and speed of mobility. As a result, the goal of designing a safe navigation system to detect impediments and provide the exact location of the visually impaired through GPS/SMS processing and powered by a mini solar panel with rechargeable battery system were achieved. © 2022 The Authors