Electronic Game Spinner Replacement

thingiverse

This was created to replace a mechanical spinner built into a board game. The spinner was hard to use and all of the game pieces moved whenever you spun it. Print Settings Printer: Monoprice Maker Select Rafts: No Supports: No Resolution: 0.15mm Infill: 15% Video MPLABX PIC C Code #pragma config FOSC = INTOSCIO //Internal oscillator - I/O on RA6 and RA7 #pragma config WDTE = OFF //Watchdog timer off #pragma config PWRTE = ON //Power-up timer enabled #pragma config MCLRE = OFF //Disable master clear #pragma config BOREN = OFF //Disable brown-out detection #pragma config LVP = OFF //Disable low voltage program - free RB4 #pragma config CPD = OFF //No EEPROM protection #pragma config CP = OFF //No code protection #include #define _XTAL_FREQ 4000000 //Internal oscillator frequency - Needed for __delay_xs functions unsigned char a = 83; unsigned char b = 179; unsigned char c = 11; unsigned char x = 7; volatile unsigned char spin = 0; void initRand(unsigned char s1, unsigned char s2, unsigned char s3){ x++; a ^= s1; b ^= s2; c ^= s3; a = (a^c^x); b = (b+a); c = (c+(b>>1)^a); } unsigned char rand(void){ x++; a = (a^c^x); b = (b+a); c = (c+(b>>1)^a); return(c); } void click(void){//Easiest, simplest, cheapest way to get a clicking sound that I could find TRISA1 = 0; __delay_ms(1);//Turn on piezo speaker for 1 ms TRISA1 = 1; } void led(unsigned char led){ PORTA = 0; PORTB = 0; switch (led){ case 0://Lets us turn off the LEDs before sleeping break; case 1: RB1 = 1; break; case 2: RB2 = 1; break; case 3: RB3 = 1; break; case 4: RB4 = 1; break; case 5: RB5 = 1; break; case 6: RB6 = 1; break; case 7: RB7 = 1; break; case 8: RA6 = 1; break; case 9: RA7 = 1; break; case 10: RA0 = 1; break; } } void interrupt isr(void){ if(INTF){ GIE = 0; spin = 1;//No debounce function since nothing else can happen until the spin ends anyway. INTF = 0; } } void main(void) { unsigned int i = 0; unsigned char curLed = 0; unsigned int spinDelay = 1; unsigned char spinValue = 0; CMCON = 0b00000111;//Disable comparator T1CON = 0b00000101; INTCON = 0b10010000; OPTION_REG = 0b11001000; TRISA = 0b00111110; TRISB = 0b00000001; PORTA = 0b00000000; PORTB = 0b00000000; initRand(TMR1H, TMR0, TMR1L);//Prime PRNG while(1){ if(spin){ while(spinValue > 10 || spinValue == 0){//Keep trying for a value between 1 and 10 initRand(TMR1L, TMR0, TMR1H); spinValue = rand() & 0b00001111; } do{ if(++curLed == 11) curLed = 1; led(curLed); click(); for(i = 0; i < spinDelay; i++)//Workaround. Delay maco can't be varied at runtime. __delay_ms(1); spinDelay += 4;//Change to vary the spin decay rate and duration }while(spinDelay < 100 || curLed != spinValue); i = 0; spin = 0; spinDelay = 1; spinValue = 0; GIE = 1; while(++i < 5000 && spin == 0)//Display number for 5 seconds then turn off unless the spin button is pressed again __delay_ms(1); }else{ led(0); asm("sleep"); asm("nop"); } } }