Interfacing Load cell RS-232 and arduino

I have load cell indicator with DB9 connector(RS-232C interface). How do I get load cell reading on my computer using Arduino.

RS-232 has a much higher operating voltage than the Arduino can handle. You'll need a go-between to interface with it, such as the Max232.

There are RS-232 shields available, as well, which are basically just breakouts for a MAX232. After that, it's just set your Serial baud rate and off you go.

EDIT:

You'll also need to know the syntax for your particular load cell.

If all you want to do is talk to it on your computer, just grab a USB-RS232 adapter and use a terminal program like PuTTY. I have one from TripLite.

What are you planning on doing?

I have trying to make a dyno controller and use matlab for creating GUI. GUI will have a real time, rpm vs horsepower plot and throttle control. I will get the torque reading via load cell controller(RS232) and rpm reading via hall effect sensor(using LM2907 frequency to voltage converter). And use servo to control throttle.