USB HID Interface for PIC 18F4550

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The goal of this web page is to describe an USB HID interface. You will find :

- The hardware,

- The program for the PIC side,

- The program dor the PC side.

The hardware

I have used the USB interface board modified for a 18F4550 PIC, i.e. :

- 20 MHz quartz with adapted capacitors,

- USB pull-up removed,

- A switch on the RB4 pin (for the bootloader).

HID interface, PIC side

The PIC program is the "test06" from the "PIC 18F2550/18F4550 Test programs" web page.

The program can be used with the HID bootloader.

This program is an evolution of one of examples from Microchip : "USB Device - HID - Simple Custom Demo".

HID interface, PC side
(new release)

You will find here (690 ko) program writen in C++ with Code::Blocks and the Win32++ library.

When you hit the Connect button while the PIC board is connected to the PC, the buttons controling the LEDs are activated as the one to read the inputs.

HID interface, PC side
(old release)

You will find here (41 ko) the PC program writen in Visual C++ Express 2008.

To run it, you will need the ".NET Framework 3.5" de Microsoft" or equivalent.

This program is based on the "USB Device - HID - Simple Custom Demo" from Microchip.