Arduino: build an obstacle-avoiding robot from scratch
A 2WD Arduino robot that drives forward and dodges what is in front of it, using an HC-SR04 on a servo and an L298N driver. The full build, wiring to behavior.
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#ultrasonic
3 tutorials
ESP32: build a 2WD robot base with motor control
Two DC motors, an L298N motor driver, an ESP32, and ultrasonic distance sensors. The base you build a robot on top of.
ESP32: read an HC-SR04 ultrasonic distance sensor
Wire an HC-SR04 to an ESP32 and measure distance in centimeters. The sensor that goes into most of my robotics projects.