post2b - ISA POST code display

post2b = ISA POST code display, not RoHS compliant (can be considered test equipment, not subject to RoHS). Spec During power on self-test (POST), most PC BIOSes will write diagnostic codes to port 80h. Use post2b to display these codes on a dual digit LED display. Additional LEDs indicate the status of the power supply rails. Convenient business card size