Curtain system

[shahrul]

You mean your example is a full code or syntax?

NO

[ober]

What do you mean by full code and syntax? I think shahrul have given a good example.

[shiyan]

What do you mean by full code and syntax?

Same question here

[nagufever]

i am using his example to do the program but it returns error.can u explain his example?

[shahrul]

i am using his example to do the program but it returns error.can u explain his example?

What I write here, is not full code. For sure it's error. See this ex wireless code http://shahrulnizam.com/pic-lesson-low-cost-rf-module/

[nagufever]

Attached the code,schematic and error message for the code.Can you correct the mistakes or point how to correct it?i want to send data using switch to the transmitter.

[shahrul]

Attached the code,schematic and error message for the code.Can you correct the mistakes or point how to correct it?i want to send data using switch to the transmitter.

Your code is lack. I give you easy code.

CODE: SELECT_ALL_CODE

#include <pic.h>
#include <htc.h>         
__CONFIG(0x3F32);
#define PB1               RA0
#define PB2               RA1
#define PB3               RA2
#define PB4               RA3
#define BAUD             1230        //~1200
#define _XTAL_FREQ  20000000   

void pic_init(void);
void uart_init(void);
char read_button(void);
void uart_transmit(char data);

main()
{
unsigned char data;
pic_init();                                 //initialize PIC
uart_init();                             //initialize UART
for(;;){
                data=read_button();
                uart_transmit(0xFF);
                uart_transmit(data);
}
}

void pic_init(void)
{
TRISA=0b001111;
TRISB=0b00000000;
TRISC=0b10000000;
TRISD=0b00000000;
TRISE=0b000;
ADCON1=0b00000110;         
PORTA=0b00000000;
PORTB=0b00000000;
PORTC=0b00000000;
PORTD=0b00000000;
PORTE=0b00000000;
}

void uart_init(void)
{
TXSTA=0b10100000;      
RCSTA=0b10010000;
SPBRG=(int)(_XTAL_FREQ/(64.0*BAUD)-1);
}

char read_button(void)
{char i=0;
if(PB1==0) i=i+1;
if(PB2==0) i=i+2;
if(PB3==0) i=i+4;
if(PB4==0) i=i+8;
return i;
}

void uart_transmit(char data){
while(TXIF==0) continue;
TXREG=data;
}


This code combination Push Button and RF Module.
If PB1 pressed, uart send 0x01,
If PB2 pressed, uart send 0x02,
If PB1 and PB2 pressed, uart send 0x03, and so on.
I just write this code without execute. Don't know if something error.

[nagufever]

Does L293D motor driver enough to carry load for 12V car power window DC motor?how much does the current need for the 12 power window to rotate or i need to use different motor driver?

[shiyan]

Does L293D motor driver enough to carry load for 12V car power window DC motor?how much does the current need for the 12 power window to rotate or i need to use different motor driver?

So is the program functioning already? What is the error?

power window motor, I don think L293D can support it. L293D max can supply 800mA? Or 1A? The power window motor can simply take 5 to 10A on current. You will burn your L293D

Suitable driver? Maybe can search for 10A or higher motor driver. Or use relay.

[nagufever]

i had compile and edited the program until no errors.can u advise me on the uart setup in the program?are they suitable or need to add something more?