Some updates with the new hardware design:

Audible buzzer to alert driver in case of knock threshold is exceeded or engine is overheating.
More colors for LCD display.
Can dim the screen for night time driving.
Datalogging is now possible and extends Hand Held Halo and Evoscan datalogging software with the ability to read Boost and WBO2 AFR directly from ECU request.
Supports 57.6k higher speed datalogging for both HHH and Evoscan.
External connector for connecting 3 bar GM pressure sensor, or 4 bar Greddy pressure sensor.
Larger microprocessor than previous version, supports more program space memory so I can add more features.
Uses an expansion card idea for providing future upgrades, ie, serial datalogger card, bluetooth serial datalogger, or SD memory card.
Supports my OBD1 datalogger cable, allows the microprocessor to enable the OBD1 datalogging cable after the engine has started to avoid seeing the "ABS light" on your dash.

Screen shot of HHH with boost and WBO2 AFR added in.



Picture of new design with serial expansion card sitting on top.