how to connect Matlab with usb port to control dc motor speed

i have a summer project i want to learn how to control speed of DC motor with matlab code by connecting it with usb 2.0 the motor takes its voltage from batteries just i want data to be connected with motor i dont know exactly how to do it i think it needs a chip i just want to know what to read and where to search and i will start learning from

thanks in advance

Answer 1

[Walter Roberson]

Please consult this previous question: here.

Note: the responses there got somewhat out of order, so you may need to read back and forth several times. Also, be sure to expand the hidden comments, as there is a fair bit of good technical material in the comments.