Raspberry Pi (Python) -- Bluetooth --> Lego BoostRaspberry Pi -- Serial --> ArduinoPC -- ROS (WiFi) --> Raspberry Pi- Webcam --> |USB|Jetson Nano --> |Serial|micro:bit --> Servo
New! The machine in action (recognizing paper as "recyclable") ! https://www.bilibili.com/video/BV1iZ4y137CY