Hello Everyone... I am new to labview and This is my first time posting in the labview forum. So Here's the question. I Have a custom made robotic arm with 6 dof using servo motors and need to impliment inverse kinematics on it. I have been looking around and found this http://zone.ni.com/devzone/cda/tut/p/id/10687 I m really impressed by the simplicity of it. I can build a model for my robotic arm and then do as stated on the page for inverse kinematics. The problem arises in the interface. I have never interfaced through serial port ever before and dnt know how to do it in labview. Parallel port is kind of easy compared to serial cause we directly send signals to each servo motor. Question 1 What blocks are we going to use to interface servo motor with the serial port. Question 2 What kind of programming will we do in the microcontroller so that it recieves and understand the signals sent by the serial port. Thanks

Instrument Control (GPIB, Serial, VISA, IVI)

Custom made Robotic Arm serial interface with Pic microcontroller

Hi Omer,

Thank you for the update. This information helps to clarify your initial questions. What you will need to do is program your microcontroller to output the PWM signal based off of how you want the motor to move. This is difficult because you will have to find out hoow to output PWM on your microcontroller, and what commands the microcontroller is expecting from the computer in order to generate these PWM signals. You will need to learn these commands if you are going to use LabVIEW to program the microcontroller. I would be happy to help you with programming LabVIEW to send serial commands, but from the microcontroller on I would not be able to help you.

Regards,

Andrew M.
Applications Engineer
National Instruments