When my ultrasound sensor stopped working, I decided to improvise by making an obstacle avoidance bot using IR sensors (cheaper too).
Control servos/motors connected to a robot car and arm kit using a Raspberry Pi, Python, and an Xbox 360 controller.
Back in January of 2019, Elegoo sent me an email asking if i'd like to test, comment, and review a new product design. I said "YES."
How to make a Otto Diy Dancing Robot. This is the world's first Otto robot without 3D printer and Arduino.