# [PIC]Need USB example for PIC18f4550

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#### Surender Reddy

##### Full Member level 2
Hi,

I am new to the USB, i have studied about USB theory in the internet.

I have found a example on below link.

HTML:
http://18f4550.com/updated_USB_demo_board/updated_USB_demo_board.html

In that host application developed in the visual studio, HID firmware in the mplab. When I try this example, my pc not detecting the the micro controller. I have checked the connections and firmware all are fine.
I need some more reference and examples on USB using PIC18f4550.

Last edited:

#### nick703

i think your VID and PID value on both hardware as well as software must be match .

##### Banned
Try using easyUSBHIDNetClass for VC# and VB.net or mcHID.dll from helmpcb.org for VB.net

#### Surender Reddy

##### Full Member level 2
i think your VID and PID value on both hardware as well as software must be match .

- - - Updated - - -

Try using easyUSBHIDNetClass for VC# and VB.net or mcHID.dll from helmpcb.org for VB.net

- - - Updated - - -

How to get VID and PID values.
I have installed all the basic usb drivers from the microchip website.