Who can help me checking my Programming

skimask · - 21st January 2008, 04:55

Originally Posted by slimpeng

i very urgent need that part if i not i will die

A cry for help?

help ppl god also will protect u and give u every day good luck for u

What?

**slimpeng** · - 22nd January 2008, 17:16

Hello....i Really Want To Cry Ad....i Hope Some One Can Help...it Only The Last One Commnet.......for My Temperature.........help//help///help///!!!!

**slimpeng** · - 22nd January 2008, 17:41

HELLO skimask your post 2 source code...i can use in the my hardware part now i facing the problme is the temperature sensor no stable...i using the voltage divide rule to give the input on port A.0 rite...and when i start running the temperature will going to high to 255oC and why no stable same time i not use the sensor to burn on fire the value will automative increase or decrease and now i knw how to on the alarm on the portd ad...i try whole night and get the result ad....thanks....and who can let me kwn why the temperature sensor on this source code cant working stable and who can give me ideal or commnet....!

thanks....!

skimask · - 22nd January 2008, 19:34

Originally Posted by slimpeng

HELLO skimask your post 2 source code...i can use in the my hardware part now i facing the problme is the temperature sensor no stable...i using the voltage divide rule to give the input on port A.0 rite...and when i start running the temperature will going to high to 255oC and why no stable same time i not use the sensor to burn on fire the value will automative increase or decrease and now i knw how to on the alarm on the portd ad...i try whole night and get the result ad....thanks....and who can let me kwn why the temperature sensor on this source code cant working stable and who can give me ideal or commnet....!
thanks....!

Know what a 4-20mA current loop is?

**slimpeng** · - 23rd January 2008, 02:05

yup i know 4-20mA.....so wat should i do it now.....need to change the sensor or jst adding the resistor.......wat valuse of the resistor i need to change it....

skimask · - 23rd January 2008, 02:18

Originally Posted by slimpeng

yup i know 4-20mA.....so wat should i do it now.....need to change the sensor or jst adding the resistor.......wat valuse of the resistor i need to change it....

You send me the board your prototype is sitting on, and I'll GIVE you the resistor you need.
Ever heard of a DS1820 or it's derivatives?

**slimpeng** · - 23rd January 2008, 05:20

now i using the voltage divider rule and the resister i will 18ohm and the test cricuit i will post at below and i got hear that D1820 that is digital temperature sensor...but i duno how to use it...i no use that before....and now how to make the sensor become stable.......

on the pict the blue colour is my temperature sensor....
and the resistor value is 18ohm
and the red colour wire i connet to ADC on port A.0
and the whole the circuit i also post at here ad...i hope u can help me....

if really want to change the sensor D1820 the circuit how it look like and where can get it and the programe need to write again or not need...!