Ball Spinner Controller

Overview

Ball Spinner Controller (BSC) acts as intermediary between Ball Spinner Application (BSA) and Ball Spinner Data from Sensors is sent to the BSA and graphed against simulated data of the expected sensor data Human Machine Interface (HMI) is 7” touch screen interaction assistant, standalone driver, and debugger for the BSC. The HMI can be run in local mode and control all hardware within the BSC The HMI can also graph and display the sensor data

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BSC Communication

The BSC at its core is a communication hub, with 5 separate types of devices that are interacted with, all fed through the Raspberry Pi 4 The Ball Spinner Application – connected over WIFI using TCP for wireless control over Ball Spinner Data Current Sensor IC’s – connected to an ADC transmitting using I2C to read current through each motor Motor Encoders – connected to 5 digital inputs on Raspberry Pi to read data, enable movement, and change direction MetaMotionS Module – connected over Bluetooth BLE as the 9 Degrees of Freedom module inside of the bowling ball, sending accelerometer, gyroscope, magnetometer, and light sensor data All Data communication is displayed through the HMI to allow for user interactions

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BSC Implementation

The BSC stores the power supply for the system along with the PCB for the system

The PCB contains terminal blocks to connect all wires from the motors and encoders to the Raspberry Pi GPIO pins to allow for 2 Degrees of Freedom of the Ball Spinner.

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All components are packaged inside of a 3D-printed housing with connections to external components feeding out of the back of the Controller

The user interacts with the Pi using the 7” touch screen display to start the software in either wireless mode or local testing mode.

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