Thopate, Kaushalya, Ketki Shirbavikar, Radhika V. Kulkarni, Rajesh Phursule, Vaibhav Kale, Suyash Karjule, Kamlait Suhas, and Suparshva Kale. “Enhancing Ultrasonic Sensor Goggles for Blinds Using Node MCU ESP8266 Microprocessor”. International Journal of Intelligent Systems and Applications in Engineering 12, no. 1 (December 25, 2023): 611–618. Accessed May 20, 2024. https://ijisae.org/index.php/IJISAE/article/view/3959.