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CoinDetector.c
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CoinDetector.c
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int rs1_sensor1,rs2_sensor1,rs5_sensor1,rs10_sensor1,rs1_sensor2,rs2_sensor2,rs5_sensor2,rs10_sensor2;
int adc1,adc2,adc3,sum,counter;
int rs1counter,rs2counter,rs5counter,rs10counter;
char a[5];
// LCD module connections
sbit LCD_RS at RC2_bit;
sbit LCD_EN at RC3_bit;
sbit LCD_D4 at RC4_bit;
sbit LCD_D5 at RC5_bit;
sbit LCD_D6 at RC6_bit;
sbit LCD_D7 at RC7_bit;
sbit LCD_RS_Direction at TRISC2_bit;
sbit LCD_EN_Direction at TRISC3_bit;
sbit LCD_D4_Direction at TRISC4_bit;
sbit LCD_D5_Direction at TRISC5_bit;
sbit LCD_D6_Direction at TRISC6_bit;
sbit LCD_D7_Direction at TRISC7_bit;
// End LCD module connections
void main() {
counter=0;
rs1_sensor1 =25 ;
rs2_sensor1=77 ;
rs5_sensor1 =153;
rs10_sensor1=244;
rs1_sensor2 =51 ;
rs2_sensor2=204 ;
rs5_sensor2 =102;
rs10_sensor2=153;
TRISA = 0b11111111;
TRISD = 0b00000000;
ADC_Init();
adc1=0;
adc2=0;
PORTD=0;
Lcd_Init(); // Initialize LCD
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF); // Cursor off
while(1){
rs1counter=0;
rs2counter=0;
rs5counter=0;
rs10counter=0;
if(adc1<rs1_sensor1){adc1=ADC_Read(0);adc1=adc1>>2;}
if(adc2<rs1_sensor2){adc2=ADC_Read(1);adc2=adc2>>2;}
if(adc1>=rs1_sensor1 || adc2>=rs1_sensor2){
counter++;
PORTD = PORTD | 128;
}
else PORTD =PORTD & (!128);
if(adc1>=rs10_sensor1)rs10counter++;
else if(adc1>=rs5_sensor1)rs5counter++;
else if(adc1>=rs2_sensor1)rs2counter++;
else if(adc1>=rs1_sensor1)rs1counter++;
if(adc2>=rs2_sensor2)rs2counter++;
else if(adc2>=rs10_sensor2)rs10counter++;
else if(adc2>=rs5_sensor2)rs5counter++;
else if(adc2>=rs1_sensor2)rs1counter++;
if(rs1counter>1){
PORTD=1;
adc1=0;
adc2=0;
adc3=0;
delay_ms(500);
PORTD=0;
sum=sum+1;
counter=0;
}
else if(rs2counter>1){
PORTD=2;
adc1=0;
adc2=0;
adc3=0;
delay_ms(500);
PORTD=0;
sum=sum+2;
counter=0;
}
else if(rs5counter>1){
PORTD=4;
adc1=0;
adc2=0;
adc3=0;
delay_ms(500);
PORTD=0;
sum=sum+5;
counter=0;
}
else if(rs10counter>1){
PORTD=8;
adc1=0;
adc2=0;
adc3=0;
delay_ms(500);
PORTD=0;
sum=sum+10;
counter=0;
}
if(counter>150){
adc1=0;
adc2=0;
adc3=0;
counter=0;
PORTD=255;
delay_ms(500);
PORTD=0;
}
a[0]=(sum%10000)/1000 + '0';
a[1]=(sum%1000)/100 + '0';
a[2]=(sum%100)/10+ '0';
a[3]=(sum%10)/1+ '0';
a[4]='\0';
Lcd_Out(1,1,"Total =");
Lcd_out(2,1,a);
}
}