Complete Arcade Spinner

thingiverse

This is a complete spinner to use with an arcade cabinet, designed for Mame enthusiasts. I developed this project from scratch, as there wasn't a suitable design available. Here's what you'll need: 1. Leonardo Micro ATmega32U4 16MHz 5V (Replace Arduino Mini Stock TE463) - Available on eBay at http://www.ebay.com/itm/322097722501 2. Incremental Optical Encoder with Rotary Encoder, 400 Impulses / REV - Available on eBay at http://www.ebay.com/itm/181881354349 3. 3 m3x10 screws 4. 1 m2x12 screw with nut To create the spinner's components, print the knob and flange using a 3D printer. Insert this code into your Arduino Micro: ``` #include enum PinAssignments { encoderPinA = 2, encoderPinB = 3, clearButton = 8 }; volatile int encoderPos = 0; int lastReportedPos = 1; int encoderMove = 0; boolean A_set = false; boolean B_set = false; void setup() { pinMode(encoderPinA, INPUT); pinMode(encoderPinB, INPUT); pinMode(clearButton, INPUT); digitalWrite(encoderPinA, HIGH); // turn on pullup resistor digitalWrite(encoderPinB, HIGH); // turn on pullup resistor digitalWrite(clearButton, HIGH); // encoder pin on interrupt 0 (pin 2) attachInterrupt(0, doEncoderA, CHANGE); // encoder pin on interrupt 1 (pin 3) attachInterrupt(1, doEncoderB, CHANGE); } void loop() { if (lastReportedPos != encoderPos) { encoderMove = (encoderPos-lastReportedPos); if (digitalRead(clearButton) == LOW) { encoderPos = 0; } if ((encoderMove=-127)) Mouse.move(encoderMove, 0, 0); else if (encoderMove>127) Mouse.move(127, 0, 0); else Mouse.move(-127, 0, 0); lastReportedPos = encoderPos; } delay(10); } // Interrupt on A changing state void doEncoderA() { // Test transition A_set = digitalRead(encoderPinA) == HIGH; // and adjust counter + if A leads B encoderPos += (A_set != B_set) ? +1 : -1; } // Interrupt on B changing state void doEncoderB() { // Test transition B_set = digitalRead(encoderPinB) == HIGH; // and adjust counter + if B follows A encoderPos += (A_set == B_set) ? +1 : -1; } Using this spinner, you can play Arkanoid with a nice arcade experience. Connect the Arduino pins as follows: Pin 2 for A and Pin 3 for B. If you need further assistance, feel free to contact me.