Intro and goal
- Features (list)
You can get a [project for $20], including worldwide shipping.
Read about the design below.
History and related links
- Power and decoupling
- Programming and reset support
Another part of it
- PCB and placement notes
- soldering advise
Click for a full size placement image.
- Operating modes
- extra software required
We used the Microchip USB stack to run the 18F2550 as a virtual serial port. Microchip's code is open but not redistributable. If you want to compile the source, download the stack from Microchip, then drag the source code into the install directory. See the detailed instructions in the PIC compiler how-to.
The virtual serial port (CDC) is an open standard, it should work on any modern operating system.
You don't need a driver, but you will need a .inf file to tell Windows how to use the device. A suitable .inf is included in the project archive.
Source and license
Taking it further
Here's some ideas for the future:
We'll post the most recent firmware updates on our blog. You can also join the discussion in the [forum].
You can [get one for $00], including worldwide shipping.
Your purchases at Seeed Studio keep the open source project coming, we sincerely appreciate your support!