This Arduino code controls a four-wheeled robot with Bluetooth and an ultrasonic sensor for obstacle avoidance. It also includes RPM measurement and speed calculation.

This DIY Blind Stick is an innovative yet simple solution that is designed to help users detect obstacles in their path. Using an Arduino Nano, ultrasonic sensor, and buzzer, it can sense objects in ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level ...