connection between 16F877A with GPS sensor module EB-85A

[Jiewy]

well i am able to connect the gps to the pic and able to receive nmea data as well as parsing it out already. If u need anything, u can find me at jiewshang@gmail.com xDD

 

[srinu249]

HI dahroug i uploaded LM35 temp conversion and display in 3 digit display


k just get how to convert Temp value from analog to digital ..
COnnect LM35 out to any PORT A pin and configure ADCON1 ,ADCON0 .. ADC MODULE ...

u wil get the Digital value in ADRESS register..

PORTB is parallely connected to SegA,B,C, .... G of DIGIT 1, 2, 3 ...
But if u wnt to switch DIGIT 1,2,3 ... COM1, COM2 , COM3 r connected to other port pins..

make sure the driving current should not be more than SOURCE current of pic. if its more .. Use Driving IC (UNLN2003/4 or Transistor Circuit)..

then u can Configure PORT B as output and put value on the PORT B
then switch ON and of all DIGITS so that 3digits valu e can be displayed..
note that .. one DIGIT must ON at any instant so switching time wil be not more than 200 us ..

hope u got it .. if u find difficult ping me..........

Srinu

 

[trungphan]

Hi Syamia!
What does it mean "lat_float=atof(temp_str);"
Command atof() you did not declaration????
Can you explain for me?
thanks!

 

[jayanth.devarayanadurga]

atof() converts string to floating point value. If temp_str contains string "5.23746" then lat_float after conversion contains 5.23746.