LH-Converter v0.23

Complete article, code and schematic of a black-box we installed on a '87 Porsche 911 engine.

To upgrade the horsepower output of the engine, a different
air-mass-meter was installed on the engine and the black-box
with the Atmel does a signal conversion to adapt for the change.

With the integrated RS232 port, the fuel-mixture can be modified online with the engine running.

rene.dupont@education.lu