I want to control the speed and direction of a DC motor using labview with pwm

[venky@4]

I want to control the speed and direction of a  DC motor (basically a toy motor) by generating a PWM signal in labview. I am using L293d motor driver and the output DAQ DO-9472. Can i do that without the aid of any microcontroller but only a simple labview code and the output DAQ 9472 

[Hooovahh · Accepted solution]

There are lots of examples on how to generate a PWM on a buffered DO, or on a counter, but that card doesn't support that.  Also a 8 slot cDAQ chassis has a BNC connector that can be used as a counter as well.  These examples can be found in the Help >> Example Finder in LabVIEW.

Also be aware of your current limiting issues.  This card can drive a decent amount of current, but it has its limits.  You'll want to put a meter inline to see what the current draw is and see how close you get to it.

[venky@4]

thank you.

Can you please explain me what is a BNC connector? and also please, can know the DAQs that would fulfill my purpose

[Hooovahh]

BNC Connector

Here is an example where I demonstrate using the BNC connector on a 8 slot cDAQ to perform a hardware timed frequency sweep.

https://decibel.ni.com/content/docs/DOC-32352