
A maker built 3D-printed chess pieces called MiniBots that are tiny robots. Each MiniBot uses an ESP32-C3, two stepper motors, a magnetometer, and a 170 mAh battery. The open-source project localizes pieces by scanning board electromagnets. The prototype works but needs firmware fixes for the single-core MCU.
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Summary by ByteBrief
Physical AI: What It Is and What It Is Not