Hi. I tried to control step motor over usb. I write program on VB Express 2008, for microchip on PBP 2.46.. I have a problem with sending data. If I send a byte which has value over 127, pic takes it always as 63 ( Ascii code of question mark ). I'm using CDC interface, endpoint 3. Is there any solution
I have also one more problem to solve..
I tried to run a fan with pwm with ULN2003. Need I connect the PIC Ground to the ULN2003 or Fan Supply Ground is enough?
How can I read Fan Rpm on the third cable of Fan ? Is there any example.