STUDENTS at Mukuba University in Kitwe are using technology to make life easier for the visually impaired. Sekela Chisula and his team have created an ultrasonic walking stick that senses obstacles and changes in ground level, alerting users through distinct beeping sounds. What began as a simple challenge from a lecturer has now become a project with the potential to help blind and visually impaired people move independently across the country. In an interview with Diggers Life, Chisula explained that, using two ultrasonic sensors and a buzzer system, the device alerts users to obstacles and changes in ground level through different beeping sounds. “I am doing a Bachelor of Science in Computer Science at Mukuba University. I am a third-year...