Not long ago I put up a post about driving an H-Bridge..
Well..
I hooked it up to a PIC16F84 and was using the PWM command from the PicBasic Pro compiler The PWM Command is: PWM pin, duty, cycles
1 cycle=5ms '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' For sp=100 TO 255 STEP 1 PWM 1, sp, 10 Next sp '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' I was just foolin with it, expecting to see the motor slowly accelerate. That I saw, what I heard was what resembles a music scale..with changing frequency. the frequency was going upward..i assume its the freq of the loop I have no speaker or mic connected I'm not complaining I think its cool. How is this Possible???? Anyone ever have anything like this before?Thanks, Rick-