Give an HP Robots Otto Kit the gift of hearing. With two ears (microphones) the bot will turn towards a noise. This project shows how to design some parts to 3d print, and then use MicroPython and Thonny with the board, and some circuit design, to make a robot that listens for a loud sound and then turn in that direction. Thanks for sharing!. Via NLAB:
The Otto kit is a cool concept from Moravia Education. It comes with a main printed circuit board containing an ESP32-WROOM microcontroller, and connections for continuous drive motors, line following sensors, an ultrasonic rangefinder, and an LED ring. It can be programmed with an online app, or with MicroPython. It also comes with a rechargeable Lipo battery, USB cable, and some O-rings and a screw driver, but that is it, no robot body! The idea is that you design and 3d print your own robot, and then program it to do a task. I love this idea, because it takes away one of the three difficulties when making a little mobile robot: you need to come up with electronics, mechanical parts, and code. Doing all three is difficult, especially as a beginner, so providing the electronics is a huge help. But I wanted to demonstrate that you aren’t limited to using just the parts that come with the kit, so I designed a custom sensor to add on to my robot.
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