Posts | Comments

Planet Arduino

Archive for the ‘Robot Dog’ Category

Poisonous plants, like poison ivy, can really ruin your day. In an effort to combat this “green menace,” YouTuber Sciencish decided to create his own quadruped robot.

The robotic dog is equipped with two servos per leg, for a total eight, which enable it to move its shoulders and elbows back and forth.

An Arduino Uno controller determines leg positions via trigonometric calculation, and when in position, it dispenses weed killer via a relay and aquarium pump setup. The reservoir can also be used to hold other liquids, whether for watering duties or even to provide extra fuel to a fire.

Daniel Hingston wanted to build a four-legged walking robot for several years, and with current coronavirus restrictions he finally got his chance. His 3D-printed robodog, dubbed “GoodBoy,” is reminiscent of a miniature version of Boston Dynamics’ Spot, which helped inspired the project. 

It’s extremely clean, with wiring integrated into the legs mid-print. Two micro servos per leg move it in a forward direction, controlled by an Arduino Uno.

Obstacle avoidance is provided by a pair of ultrasonic sensor “eyes,” allowing it to stop when something is in its path. An LDR sensor is also implemented, which when covered by its human minder commands it to present its paw for shaking.

Be sure to check out a short demo of GoodBoy below! 

Would you like a dog? Would you like a robot dog? If so, then this build by Michael Rigsby could be a great starting point. 

Rigbsy’s robotic pet features four servo-driven legs, with two-axis shoulder movement, as well as an articulated knee joint. As seen in the video below, it’s capable of picking itself up off the ground, and can then walk using a slow side-to-side gait.

An Arduino Uno uses the majority of its I/O pins to control the legs, and as of now, it travels forward with no directional control or sensor input. 

Instructions for the project, along code and 3D print files, are available in Rigsby’s write-up.




  • Newsletter

    Sign up for the PlanetArduino Newsletter, which delivers the most popular articles via e-mail to your inbox every week. Just fill in the information below and submit.

  • Like Us on Facebook