need help with at89c51

hi im new to this forum and need help from u guys.............
im doing a daq using microcontroller....
im using 4 input (2 temptarute & 2 vibration sensor) and take the value to pc using vb (interface to pc).....& and from pc i can turn off/on one relay to switch off the machine.......
im doing this project so i can check on machine behavior like is it running in normal state or is need to do maintenance ......(something like this)
i did the code and when i compile it show no error (i modify form someone code )..... i want to know will this code work.......

i got another problem what is msdn of visual basic because when i install it ask for it and i can't find it from web......

im attaching the code ...

Hi, to begin at least coding look at these tutorials on the 8051 interfaced with other items:
keypad with 8051 : **broken link removed**
lcd with 8051 : **broken link removed**
lm35 temperature with 8051 : **broken link removed**

stephen87 said:

Hi, to begin at least coding look at these tutorials on the 8051 interfaced with other items:
keypad with 8051 : **broken link removed**
lcd with 8051 : **broken link removed**
lm35 temperature with 8051 : **broken link removed**

Click to expand...

hi stephen87.... thanks for your information i look through it and i think i will be useful for me to have better understanding of 8051 coding...