03/07/2007

    Well some time between 03/06 evening and this morning I transfered the schematic to copper and soldered up the ICs, including one surface mount, for a current logger PCB.  I'm using a brother 5025DN and Office Depot laser presentation paper (I'll detail the home PCB fab setup at some point) to transfer the eagle circuit to copper.  Pictures pre and post etc will be up soon!  The code is 80% done and the board will hopefully be functioning inside of the next week.  I abandoned the transfered copy I did on 12/21/2006, since it wasn't a complete transfer and I had to sharpie in some traces and pads.

 12/23/2006 - 12/28/2006

    Paper and penned some code for the project.  I finished an interrupt based circular buffer routine for the USART along with some command processing for the data coming over the USART.  I also worked out some code command schemes I want to use and general menus for the current logger.  The user interface (menus and all) will use a PC terminal and later software for the PC will be developed.  The plan is to support firmware for the PIC that will allow either a dumb terminal or smart software as an interface.  The main support for this will require a special command that will dump a menu via the USART with the intent of being displayed to a user on a terminal.

12/21/2006

    Drew out a schematic in Eagle (from CadSoft) and got it printed and heat transfered to a PCB.  No time to etch sadly, but that will get done soon enough!

12/18/2006

    Going to slap together a 0-100A RS-232 Data logger