Here is a robot kit that comes with almost everything you need to build a smart app controlled crawling robot. The XiaoR Geek Hexapod Robot Kit works with the Raspberry Pi 4B and is ready for Python and C++ programming. It is ready for face/color/QR code recognition. It has ultrasonic sensors to follow the movements of objects.
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The XiaoR Geek Hexapod Robot Kit has a LED voltage display. It has an aluminum body. You can control it with your Android phone or PC. More information is available here.
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