In daily life,visually impaired individuals rely on white canes for mobility.However,traditional canes can only manually detect nearby obstacles and fail to provide comprehensive environmental information.The challenges of navigating for the visually impaired extend beyond detecting road conditions and obstacles to include determining directional needs and environmental cues.Therefore,a novel smart guide cane based on the STM32 microcontroller has been designed.It integrates various peripheral detection circuits,including light detection,ultrasonic sensing,voice prompting,GPS positioning,and angle detection circuits.This device enables functions such as light detection,ultrasonic ranging,GPS positioning,fall detection,SMS sending,and distance estimation.It supports nighttime use,thereby addressing the mobility challenges faced by the visually impaired.
Key words
STM32 /
SMS alerts /
ultrasonic detection /
blind travel
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