a dwarf board for 28-pin PIC chips
The DB047 board hosts an 28-pin PIC chip and an 7805-based 5V power supply.
All PIC pins and the 5V are accessible both on three Dwarf Bus connectors, and on wire cups.
The board has a green power LED, and a yellow LED that can be connected to RA0.
ICD2 and Wisp648 style connectors are provided for In-Circuit programming.
For USB PICs like the 18F2550 the board contains an USB connector.
More details can be found in the manual.
The DB047 is availabe as boare PCB, as a kit, or built.
For the kit and built versions there are two options.
On is without a PIC, with the components suitable
for use with a non-USB PIC chip like the 16F8856 or 18F2520.
The other option contains a 18F2550 chip pre-programmed with an USB bootloader,
and the components for assembling the board accordingly.
The bootloader .hex file, the PC application, and all sources can be found below.
It is a slightly modified version of the
The bootloader is provided under GPL license.
Copyright (c) 2010 Van Ooijen Technische Informatica / Wouter van Ooijen