The RGB dash project

[Ivan141]

Almost done with a first draft for a speedo PCB.
Less fancy than the tach as far as LED control is concerned, but more complicated to design. Still need to do a ground plain and some additional supply and ground routing to make things as reliable as possible.
[img name=]http://www.aeu86.org/files/sp/speedo_board_nogndplane_185.jpg[/img]

This one has:
-An ATMEGA328 MCU (plenty of power)
-256kb eeprom for storing settings.
-Opto isolated input for coil- tach signal (can be converted to other sensor types with jumpers should anyone need it).
-USB serial interface
-5V 3A switching power supply.

Both boards have a driver onboard for a needle backlight PCB, which is coming up next, furthermore separate drivers for fuel, oil pressure and engine temp lighting are present.