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Originally Posted by Superstitions
I am using analog input (pot) from the user console to control a motor speed through a victor speed control. The analog gets converted to PWM_1= 0 to 255. I want my PWM (PWM_2) output to the victor to be 100 to 255. We are controlling ball distance by changing speed of ball shot with victor to a motor. I want input to this to be from the pot and want to presrve the ability to be able to go in reverse a little if the shooter gets jammed. I have come up with a formula for the conversion:
(PWM_1*155/255) + 100 =PWM_2.
My questions are
1) will this be excessively taxing on the RC program
2) is this the best way to make full use of the 0 to 5 volt analog input
3) do I need to use the terms PMW_1 and PMW_2 or can I use a term (PMW_1 temp)
Thanks in advance, please take it easy on me I am just starting outhttp://www.chiefdelphi.com/forums/newthread.php?do=newthread&f=51#
Confused
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How about something like:
unsigned char PWM_1; // 0-255 input from joystick
unsigned char PWM_2; // 100-255 output to victor
unsigned int temp; // temporary storage
temp = 39 * (unsigned int)PWM_1;
temp >>= 6; // right shift six bits, which is the same as dividing by 64
PWM_2 = (unsigned char)temp + 100;
Notice that 39/64 is an approximation of 155/255.
-Kevin