[Mike Betts]

Originally Posted by WGRAY

I would like to control the speed of motors so that my arm motors spin slowly, ie when I use my joystick to control my arm and push it full throttle, it would return a quarter throttle response. If you could step by step instruct in easycpro, I am a newbie rookie.

I can't help you with easyC but can explain the basics...

A PWM is defined to be:

255 - Full Forward
127 - Stop
0 - Full Reverse

Let's assume that your PWM is #1 and you are using the Y axis of the Joystick installed into Port 1 to control it. Your C code would look like this:

pwm01 = (unsigned char) ((((int) p1_y - 127) / 4) + 127);

(int) and (unsigned char) are compiler directives called a cast. (int) tells the compiler to transform the unsigned char, p1_y, to a signed integer. (unsigned char) transforms it back.

Note that there are many ways to skin a cat, all of which are intensely undesirable to the cat...

Regards,

Mike