Abstract: This paper presents design and implementation of an ultrasonic sensor based walking stick for visually impaired person. An ultrasonic sensor module, HC-SR04 is used for obstacle detection in ...
or download the .zip file. ESP32-CAM; BMP280 pressure sensor; GPS Beitian BN-880. The code is intended to be used with PlatformIO IDE. 1) Auto-leveling 2) Altitude hold 3) GPS (NOT TO USE AT THE ...
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