Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

please help me with pic16f877a

Status
Not open for further replies.

xairz

Newbie level 2
Joined
May 10, 2011
Messages
2
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,299
im having problem to light on led using irpd sensor . can anyone help how to make the led on . this is my coding . please . help me anyone :-(

Code:
#include <16f877a.h>
#device adc=8
#use delay(clock=20000000)
#fuses hs,noprotect,nowdt,nolvp
#use rs232(baud=9600,xmit=PIN_C6,rcv=PIN_C7,parity=N)

#byte PORTa=5
#byte PORTb=6
#byte PORTC=7
#byte PORTd=8
#byte PORTe=9

void main()
{
int value1,value2;
//set_tris_b(0b00000000);
set_tris_d(0b00000000);
setup_port_a(ALL_ANALOG);
setup_adc(ADC_CLOCK_INTERNAL);


do
{
set_adc_channel(0);
value1=read_adc();
//printf("read S %u",value1);
delay_ms(1000);
portd = value1;


set_adc_channel(1);
value2=read_adc();
//printf("read S %u",value2);
delay_ms(1000);
portd = value2;


if(value1 > 1)
{

output_high(pin_D7);
//delay_ms(1000);
}
else
{
output_low(pin_D6);
//delay_ms(1000);
//output_low(pin_D5);
}

}
while(1);
}
your help means a lot to me
 

rajbabu

Junior Member level 3
Joined
Apr 2, 2010
Messages
29
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,283
Location
indo
Activity points
1,459
whats problem in your code. I mean what you want to do..
 

xairz

Newbie level 2
Joined
May 10, 2011
Messages
2
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,299
john : yes , i set it correctly . do you think it set wrong ?

rajbabu : i don't know . im using an irpd sensor . it just like ir sensor . when it detect object or obstacle , led will light on .

thunder : im using ccs , the problem is when on the board . nothing happen . the sensor also not light on , the output should make led on . but nothing happen

this is sensor im been using

IRPD-01 IR Proxinity Detector - discover electronics and robotics
 

rajbabu

Junior Member level 3
Joined
Apr 2, 2010
Messages
29
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,283
Location
indo
Activity points
1,459
Their may be two problem:
1. in hardware
check output of sensor without connecting to uC.
if it is coming right then conect to uC and check.
if output of sensor deviating from previous value then add pull up resistance on that pin.
2. in software
make input pin to it or change pin.

Rajbabu :cool:
 

Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top