An Arduino Uno takes this data, runs it through a PID loop, and commands an L298N motor driver to adjust the speed and direction of two DC motors.

The rocket launcher itself is assembled out of off-the-shelf pipe and 3D printed components. An Arduino Uno runs the show, hooked up to a Bluetooth module and a laser rangefinder.

The robot’s hardware was constructed in accordance with the Open Robotic Platform (ORP) rules. This included two DC motors, an UNO R4 Minima, a Bluetooth module, and an SD card.

Published Mar 14, 2014 9:46 AM CDT Updated Jul 27, 2022 3:48 AM CDT ...

We powered the sensor stick using the 5 volts out available on the Arduino Uno. I2C also requires pull-up resistors on the data (SDA) and clock (SCL) buses.

By harnessing the power of 3D printing, servo motors, and Arduino programming, you’ll create a robotic arm that responds to your commands through a sophisticated software interface, allowing for ...