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February 14, 2013 at 7:34 am in reply to: help for finger print based attendance monitoring system #9132Syed AameerParticipant
have you connected the pull up resistors for port 0..if not means i think u may not get the output
February 14, 2013 at 7:30 am in reply to: 16×2 LCD Skipping Alphabetic Letters (b,d,f,h,j etc.) – AT89C5131A #9131Syed AameerParticipantcheck the rs, rw and en pin correctly set…………….
Syed AameerParticipantHello ival
can you post your circuit and program….
what is the output in your hardware..
can you explain more…
Syed AameerParticipantvoid main()
{
TRISB=0x00;while(1)
{
PORTB=0x00;
delay_ms(100);
PORTB=0xFF;//its a 8 bit microcntrollerdelay_ms(100);
}
}still u cant find blinking led increase the value of delay and check.
All the best
Syed AameerParticipant8051 microcntroller by mazhidi
Syed AameerParticipantType 10 digit mobile number..remove ‘0’ and check for your local number
Syed AameerParticipanti have interfaced with 8051 and working fine..
i have not worked with arm…
But if you post the code hope i will help you…
March 11, 2012 at 4:31 pm in reply to: How to Send a signals from 8051 to Motar for Opening or Closing. #7285Syed AameerParticipantConnect a RF txr to the microcntroller which should send values for motor to rotate
in the other connect RF Rxr and motor to rotate,..
Hope this may help you
March 11, 2012 at 4:30 pm in reply to: Interfacing GSM module with Microcontroller – C Program #7284Syed AameerParticipantPLease Add your code..otherwise how come we will know!!!!
Syed AameerParticipantbuffer means say for in your program you are using word as variable to store SBUF value..
declare the word as Word[15]..
then in recieviing Program
while(RI==0);
Word[i++]=SBUF;
where i=0;
then diplay the Word value in for loop..
Hope this may help you
March 11, 2012 at 4:14 pm in reply to: how to connect the PIC16F877A to biometrics finger print scanner #7282Syed AameerParticipantits simple…
which module you are using…Biometric module????
Syed AameerParticipantIF you are in Bangalore then you will get GPS module Skytraq GPS- Patch antenna /i wave GPS Tracker ..it will give data in NMEA protocol…. connect the TX pin of GPS reciever to the 8051 RX pin..and read data…
Before doing read the NMEA protocol data sheet for better undersatnding
Aamir
Syed AameerParticipantHello Alok,
I am confused what you have written..i think you are a begineer…
But if you want to repeat the Program then just used While(1){ } or you can use for(;
dont call main function
After
void main(void)
{int i,j,k;While(1){for(i=0;commands!=”;i++) //Sending string to LCD}
}
Syed AameerParticipantSyed AameerParticipantHello Roy,
Get 1 AT89c51/AT89s52 which costs you around Rs.50-60.. i think you read the book of 8051 by Mazidi.. you will get to know how to Program and how to build circuit.
Get 40 pin base, 11.0592Mhz crystal, 33pf, 8.2k resistor,10microcfarad capacitor and a reset switch ,2×16 LCD, 4×3 keypad, pull up resistors general PCb, soldering gun etc………
Get 1 8051 Programmer to send the hex file into microcontroller
Download Keil M vision 3
then write the Program in Keil in that only you will get the option to convert C file into hex file…
While Purchasing Programmer they will Provide software .Run on Your PC.
Open that Choose the Hex file to transfer to microcntroller
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